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OIL INDIA LIMITED (A Government of India Enterprise)

P.O. Duliajan – 786602, Assam, India Website: www.oil-india.com

Corrigendum No. 2 to IFB No. CPI9724P19

Engineering, Fabrication and Supply of Modular Electrical Packages respectively for OCS at Nadua and GGS at East Khagorijan in Dibrugarh

district, Assam

1. This Corrigendum is issued to notify the following: a) In view of queries received from bidders in matter corresponding to

technical SOW, the final OIL’s responses to the queries are generated. All the bidders are requested to refer to Annexure- I attached herewith.

b) Revised Electrical single line diagram for OCS at Nadua and GGS at E. Khagorijan are attached herewith as Attachment – 1&2 respectively.

c) Hazardous area classification drawing for OCS at Nadua and GGS at E. Khagorijan are attached herewith as Attachment – 3&4 respectively.

d) Specification for Lighting Transformer for OCS at Nadua and GGS at E.

Khagorijan are attached herewith as Attachment – 5&6 respectively.

e) Specification for Lighting Fixure and Distribution Board for OCS at Nadua

& GGS at E. Khagorijan are attached as Attachment – 7&8 respectively. f) Revised Price Bid format/SOR is attached herewith as Attachment – 9.

g) Revised Electrical Substation Layout is uploaded separately under

“Technical attachment” tab in e-Tender portal. 2. Extension of the Bid Closing/Technical Bid Opening date as under:-

i) Bid Closing Date & Time : 04.01.2019, 11:00 hrs. IST.

ii) Technical Bid Opening Date & Time : 04.01.2019, 14:00 hrs. IST.

3. All other terms and conditions of the tender remain unaltered.

4. All the prospective bidders are requested to regularly visit OIL’s

website: www.oil-india.com and e-procurement portal https://etender.srm.oilindia.in/irj/portal for further announcements/latest information related to this tender.

5. Bidder to submit this Corrigendum No. 02 along with Annexure – I and

Attachments 1-9 duly signed & stamped in all pages as token of acceptance and shall upload this document in the un-priced folder of the e- bid.

http://www.oil-india.com/

https://etender.srm.oilindia.in/irj/portal

Annexure – I

SUMMARY OF CONSULTANT/OIL’s RESPONSE TO PRE-BID QUERIES

SL

No RFQ Section Ref. Clause

Existing Clause / Scope of

supply clarification. OIL / Consultant Response

1 CPI9724P19 General

Bidder has not received Technical Specifications for LV Switchboard

for NAUDA Site. Please provide the same

Bidder shall refer specification document no KIP-17039-E-SP-

9001, page 49 of 193 in technical part IV

2 CPI9724P19 General

For Equipments where there is no

detailed Specifications , Bidder shall Supply Equipments in line

with the details available in

17039-ND-E -DB-9001 & 17039-ND-E -DB-9001 - DESIGN BASIS

Noted

3

Bidder Presumes DATA SHEET

FOR CLARIFIED WATER DISPOSAL PUMP MOTOR is not

relevant for this Package.

Please confirm

Confirmed

4

Bidder understands that various

PIPING & INSTRUMENTATION

DIAGRAM enclosed along with Electrical Package Documents are

only for Information purpose and

the same wont form the basis for any Scope of Supply and/or

Service for MPC-9. Please Confirm

P&ID is provided for reference to

identify the electrical equipments and the control scheme/

associated signals which bidder

may use it along with SLD for the MCC, interface signal design.

5 VOLUME-

II_TECHNICAL

The Scope of supply is not limited to the below mentioned items, MPC

Contractor shall supply all required

items for the satisfactory operation of the plant.

Bidder wishes to clarify that that their Scope is limited to "MPC-9

MODULAR PACKAGE

CONSTRUCTION Supply and Installation of Electrical Systems”.

Bidder understanding is correct.

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Clause 2, page 8 of 37 Which further is detailed out in

2.1 TABLE-1: Electrical Scope of

supply for Nadua site, TABLE-2: Electrical Scope of supply for East

Khagorijan site & ELECTRICAL

SOR for each site. However any Component, Sub-component,

Associated hardware, Accessories

etc., forming part of the Main equipment and are required for

satisfactory operation , will be part

of the Scope, regardless of whether such items are specifically

mentioned in the tender or not.

6 VOLUME-

II_TECHNICAL

30 kVA AC UPS (HOLD-1)

Clause 2.1 -05, page 10 & 17 of 37

Bidder understands that rating (30 kVA) is on HOLD. However the

rating will remain valid during the bidding process and suitable

commercial & time extension

provisions will be made available in the contract to accommodate

any change in the rating at the

time of detailed engineering.

Noted

7 VOLUME-

II_TECHNICAL

5 kVA Telecom UPS (HOLD-1),

Clause 2.1 -07, page 10 & 17 of 37

Bidder understands that rating (5

kVA) is on HOLD. However the

rating will remain valid during the bidding process and suitable



any change in the rating at the

time of detailed engineering

Noted

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8 VOLUME-

II_TECHNICAL

Variable quantity

Clause 2.1 -15,17,18,19,20,21, page 8 to 22 of 37

We presume that quantities are to

be quoted as per ELECTRICAL

SOR during the Bidding process. Please confirm.

Quantities indicated in SOR are

tentative. Bidder to estimate the

quantity required and quotes accordingly.

9 VOLUME-

II_TECHNICAL

Prefabricated substation - Set -1

Clause 16, page 12 of 37

Bidder Assumes that 1 Set

consists one number of

i) Switchgear Containerized room,

ii) Emergency Switchgear Containerized room

iii) UPS Containerized room

iv) Battery Containerized room. v) CCR Containerized room.

Please confirm.

Control room will be supplied by

other.

10 VOLUME-

II_TECHNICAL

Prefabricated substation - Set -10


Please clarify if each set contains

One number of

i) Switchgear Containerized room,

ii) Emergency Switchgear Containerized room

iii) UPS Containerized room

iv) Battery Containerized room. v) CCR Containerized room.

Also ELECTRICAL SOR FOR EAST

KHAGORIJAN mentions the quantity as "EA -1"

Each set contains One number of

i) Switchgear Containerized room, ii) Emergency Switchgear

Containerized room

iii) UPS Containerized room iv) Battery Containerized room.

11 VOLUME-II_TECHNICAL

Common Lifting kit including Slings,

Spreader Bar, Shackles and Certifications.


Please clarify this requirement

This lifting Kit is required for

lifting prefabricated substation. Bidder shall design and supply

lifting kits based on the weight of

the prefabricated substation and

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shall be part of the pre fabricated

substation line item.


The design of the modular package

shall not exceed the package size specified in the overall plot plan.

Clause 4 g), page 25 of 37

Please clarify if the dimensions mentioned in the DWG No. 17039-

ND-E-DW-9012 ELECTRICAL

SUBSTATION LAYOUT & DWG No. 17039-EK-E-DW-8012

ELECTRICAL SUBSTATION

LAYOUT are limiting Dimensions. Bidder understands that suitable


provisions will be made available in the contract in case number of

standard containers increase due

to detailed engineering requirement

Layout specified in the drawing is

only a guideline and bidder shall

recheck based on the dimension of the equipments which will be

supplied and decide the no of

containers.

13 VOLUME-

II_TECHNICAL

The fabrication of panels/ containers shall be carried out at MPC

Contractor’s fabrication yard.

Clause 11 a), page 30 of 37

The fabrication of panels/ containers shall be carried out at

MPC Contractor’s fabrication yard

or Sub-Vendors Fabrication yard

Tender condition prevails.


MPC Contractor shall install and

complete Factory Acceptance Test for

all electrical equipment modeled inside the containerized electrical

substation.


Bidder understands that Electrical

Panels like LV Switchgear Panels,

Emergency Switchgear panels, APFC, MLDB, IRP & Various DBs

etc. are manufactured, inspected

and despatched to site from respective panel manufacturers

premises. These panels will be

installed inside the containerized Substation at the site location

after installation and proper

grouting of Containerised

Company expect bidder to supply

pre installed, interface cables

wired up and tested at factory, before shipping the substation to

site. Only limited reassembly and

re installation of panels which are removed for meeting the transport

limitation. If the bidder plans to

assemble all the panels inside the ready built substation and do the

interconnection cabling at site, it

is the bidder responsibility for all

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Electrical room. Please confirm works like unloading, storing, safe

guarding , shifting to site and

installation and meet the project schedule

15 ELECTRICAL DESIGN

BASIS

SCOPE OF WORK 2 numbers of 415V Gas Engine Driven Genset (GEG) and

Generator Control Panels with

required protection and synchronization facility shall be

supplied for this Captive Power

Plant ND-Clause 7.1 to 7.4, page 13 of 46

EK-Clause 7.1 to 7.4, page 14 of 47

On the Basis of TABLE-1:

Electrical Scope of supply for Nadua site, TABLE-2: Electrical

Scope of supply for East

Khagorijan site, ELECTRICAL SOR FOR NAUDA/ EAST KHAGORIJAN

, Bidder understands that GEG

as associated equipments mentioned in the referred clauses

are not in the Scope of this

Package. Please confirm

Confirmed


BASIS

SCOPE OF WORK

A source of emergency D.G. power

shall also be considered ND-Clause 7.10, page 15 of 46

EK-Clause 7.10, page 16 of 47


Electrical Scope of supply for Nadua site, TABLE-2: Electrical

Scope of supply for East

Khagorijan site, ELECTRICAL SOR FOR NAUDA/ EAST KHAGORIJAN

,Bidder understands that DG

associated equipments are not in the Scope of this Package

confirmed


BASIS

SCOPE OF WORK Electrical Heat Tracer for Pipelines

along with all accessories like valves,

strainers, instrumentation etc. ND-Clause 7.29, page 18 of 46


Bidder understands that their

scope is limited to providing HEAT TRACING DISTRIBUTION BOARD

consisting of EHT Transformer of

50kVA, 415V/240V AC, 50Hz, 3 phase, 3 wire, Delta/delta, 4%

impedance, Off Load Tap changer

(OCTC) with ± 5% in steps of 2.5%

Bidder shall also supply heat

tracing controller with display panel which receives RTD input

from the corresponding heat trace

pipe lines and provide output to the heat tracing circuits through

the heat tracing Distribution

board. The heat tracing line list is

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& along with requisite number of

Outgoing Circuits fed via MCBs

with Earth Leakage Protection Please confirm

provided for the bidder to estimate

the no of circuits required. Scope

includes supply and laying of RTD cables from field to CCR, supply

and installation of power cable

from the DB to the field junction box provided by others. Further

Heat tracing specification shall be

referred.

18 ELECTRICAL DESIGN BASIS

SCOPE OF WORK

LV INDUCTION MOTORS ND-Clause 10.3, page 29 of 46

EK-Clause 10.3 page 29 of 47


Electrical Scope of supply for

Nadua site, TABLE-2: Electrical Scope of supply for East

Khagorijan site, ELECTRICAL SOR

FOR NAUDA/ EAST KHAGORIJAN , Bidder understands that LV

Induction motors mentioned in the referred clauses are not in the

Scope of this Package

Please confirm

Confirmed.


BASIS

SCOPE OF WORK

CATHODIC PROTECTION SYSTEM

ND-Clause 10.16, page 44 of 46 EK-Clause 10.16, page 45 of 47



Nadua site, TABLE-2: Electrical Scope of supply for East

Khagorijan site, ELECTRICAL SOR

FOR NAUDA/ EAST KHAGORIJAN , Bidder understands that

CATHODIC PROTECTION

SYSTEM mentioned in the referred clauses are not in the Scope of

this Package. Please confirm

confirmed

20 ELECTRICAL DESIGN SCOPE OF WORK On the Basis of TABLE-1: confirmed

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BASIS MOTOR OPERATED VALVES

ND-Clause 10.17, page 45 of 46



Nadua site, TABLE-2: Electrical

Scope of supply for East Khagorijan site, ELECTRICAL SOR

FOR NAUDA/EAST KHAGORIJAN

, Bidder understands that MOTOR OPERATED VALVES mentioned in

the referred clauses are not in the

Scope of this Package. Please confirm


BASIS

The residual current monitoring

system (RCMS) shall be provided with a minimum 12 inputs from outgoing

feeders.

ND-Clause 7.15, page 15 of 46 EK-Clause 7.15, page 16 of 47

Considering the given Distribution

Scheme. 6 Channel RCM Modules are sufficient. Kindly Accept



BASIS

SHORT CIRCUIT LEVELS 240 V Systems: 16 kA (rms) for 1 sec

ND-Clause 9.1, page 21 of 46


Short Circuit levels for 240 V System is 10 kA for I Sec as per

ELECTRCIAL SINGLE LINE

DIAGRAM. We presume that the SLD will supersede this

requirement in Design Basis

16 KA for 1 sec short cicruit level

shall be considered for 240 V

system


BASIS

Bidder shall design adequate number & size of portable modularized ISO

container to house electrical

equipment. If required ISO containers readily available can be combined and

modified suitably to have sufficient

space for installing electrical equipments. The suggested

number of container based systems

are,

Containers specified here does not match with DWG No. 17039-ND-

E-DW-9012 ELECTRICAL

SUBSTATION LAYOUT/ DWG No. 17039-EK-E-DW-8012


LAYOUT. Bidder understands that

1) Containers are to be supplied in

line with DWG No. 17039-ND-E-

Confirmed.

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(a) Containerized substation for

Normal LV Switchgear. (b) Container for Emergency LV

Switchgear.

(c) Container for UPS system and container for batteries.

(d) Container for installing gas engine

generator and its accessories including control panel.

(e) Container for installing emergency

switchboard and EDG control panel. ND-Clause 9.4.1, page 22 of 46

EK-Clause 9.4.1, page 22 of 47

DW-9012 ELECTRICAL

SUBSTATION LAYOUT & DWG No.

17039-EK-E-DW-8012 ELECTRICAL SUBSTATION

LAYOUT

2) Containers for installing gas engine generator and its

accessories including control

panel are in the Scope of GEG Supplier.

Please confirm


BASIS

VFD units shall be employed for the process pump motors where required

ND-Clause 10.1.5, page 25 of 46 EK-Clause 10.1.5, page 25 of 47

Bidder shall follow the Load List (ETP LOADS &

OWS+CRWS+RWTP LOADS) as the basis for Consideration of

VFDs

Revised load list for water

treatment package will be

provided. Revised SOR will be provided.


BASIS

Motor Protection: • Motors rated up to 12.5hp shall be

equipped with Direct On Line starters.

• Motors rated above 12.5hp and upto 40hp shall be equipped with Star-

Delta starters.

• Motors rated above 40hp shall be provided with soft starter and

numerical motor protection relays.

• Motors rated for 100hp and above shall be provided with Motor

Protection Relays.

ND-Clause 10.1.9, page 25 of 46

Requirements Specified in this clause does not match with

STARTING METHOD mentioned

the Load List (ETP LOADS & OWS+CRWS+RWTP LOADS).

Bidder understands that Load list

needs to be followed. Please confirm

Revised load list for water

treatment package will be

provided. Revised SOR will be provided.

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EK-Clause 10.1.9, page 25 of 47

26 ELECTRICAL DESIGN BASIS

Protection relays for LV incomer feeders shall be of numeric type

ND-Clause 10.1.10, page 25 of 46 EK-Clause 10.1.10, page 25 of 47

As per Serial Number 2a) of ELECTRICAL SOR, Incomers

needs to be provided with μp based LSING(Overload protection

(L), short-time delayed short-

circuit protection (S), instantaneous short-circuit

protection (I) and ground-fault

protection (N)). protection having communication capability. Hence

Numerical Protection relays are

not considered by the Bidder. Please confirm

Confirmed.

27 Electrical Single Line

Diagram

The degree of protection for ratings up

to 2500 should be IP54 or better and for ratings more than 2500 it should

be IP42 or better

ND- Notes 14, page 03 of 04 EK- Notes 14, page 04 of 04

LV Switchboards shall have

ingress protection of IP42 as mentioned in ELECTRICAL SOR

page No. 3 & 4 of 12 confirmed


Diagram

63A,415 VAC,50Hz,3PH,3W, 10 kA/1

Sec CU BUSBAR. MOV DB, page 04 of 04

Bidder feels that the MOV DB

needs to be fed through an Auxiliary Transformer as the Fault

levels needs to be maintained at

10 kA or less. Please re-look Bidder shall consider bus bar and

all MCCBs Fault level shall be

made suitable for 50 kA for 1 sec.


Diagram

400A,415 VAC,50Hz,3PH,3W, 10

kA/1 Sec CU BUSBAR

MPDB, page 04 of 04

Bidder feels that the MPDB needs

to be fed through an Auxiliary

Transformer as the Fault levels needs to be maintained at 10 kA

or less. Alternately CU Bus bar

rating shall be made suitable for 50 kA for 1 Sec and MCCB

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Outgoings may be used. Please

suggest

30

Electrical Single Line Diagram,ETP LOADS

List,

OWS+CRWS+RWTP LOADS, ELECTRICAL

SOR

General Bidder Presumes that in case of any discrepancy among the

referred documents, Electrical

SOR Will supersede the other documents. Please confirm

This is a lump sum contract.

Quantity mentioned in SOR is

tentative. Bidders have to estimate required and quote accordingly.

31

ETP LOADS List,

OWS+CRWS+RWTP

LOADS

TAG NO. (HOLD-1) Bidder understands that ratings mentioned in Load List are

presently on HOLD, However it

will remain valid during the bidding process and suitable



any change in the rating at the time of detailed engineering

HOLD will be removed during

detail engineering.

32

ELECTRICAL SOR FOR NAUDA / EAST

KHAGORIJAN

a) Motor Feeders up to 40HP shall be

provided with MCCB having adjustable Thermal Magnetic

protection.

b) Motor Feeders above 40 HP shall be

provided with MCCB having μp based

protection and Numerical Motor Protection Relay having protective

functions as per OISD RP149.

Clause 2.1 a) & b), page 02 of 12

Bidder informs that MCCBs for

Motor Feeders shall be provided with Magnetic release only and the

same will be as per Type-2 Co-

ordination chart of the Switchgear OEM Tender condition prevails.

33

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

a) Motor Feeders up to 40HP shall be

provided with MCCB having

adjustable Thermal Magnetic

Bidder informs that MCCBs for

Motor Feeders shall be provided

with Magnetic release only and the


SL




protection.

b) Motor Feeders above 40 HP shall be provided with MCCB having μp based

protection and Numerical Motor

Protection Relay having protective functions as per OISD RP149.

Clause 2.2 a) & b), page 03 of 12

same will be as per Type-2 Co-

ordination chart of the Switchgear

OEM

34

ELECTRICAL SOR FOR

NAUDA / EAST KHAGORIJAN

INTERPOSING RELAY PANEL-Location: Emergency Switchgear

Room

Clause 3.2, page 04 of 12

Even though Location for one of the Interface Relay Panel is

mentioned as Emergency

Switchgear Room, DWG No. 17039-ND-E-DW-9012


LAYOUT & DWG No. 17039-EK-E-DW-8012 ELECTRICAL

SUBSTATION LAYOUT does not show this panel as being part of

this room. Kindly re-check and

confirm

IRP panel shall be accommodated

in the emergency switchgear room Layout

35 ELECTRICAL SOR FOR NAUDA / EAST

KHAGORIJAN

Design, Engineering, Manufacturing,

Assembling, Supply, Installation,

Testing & Commissioning of 30 kVA AC UPS (UPS rating shall be

confirmed during Detailed

Engineering) Clause 4.1, page 04 of 12

Bidder understands that rating

(30 kVA) will remain valid during

the bidding process and suitable commercial & time extension

provisions will be made available

in the contract to accommodate any change in the rating at the

time of detailed engineering

Noted

36 ELECTRICAL SOR FOR

NAUDA

Battery Backup time shall be 6 hours Clause 4.1, page 04 of 12

As per Clause No. 7.17 (Page 16 of 46) of Electrical Design Basis,

back up time required is 1 Hour.

Bidder understands the back-up

Back up time shall be 1 hour

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requirement is only for 1 hour


NAUDA

Battery backup time shall be 2 hours Clause 4.2, page 04 of 12

As per Clause No. 7.18 (Page 16 of 46) of Electrical Design Basis,

back up time required is 1 Hour. Bidder understands the back-up

requirement is only for 1 hour

Back up time shall be 1 hour

38

ELECTRICAL SOR FOR


Design, Engineering, Manufacturing, Assembling, Supply, Installation,

Testing & Commissioning of 5 kVA

Telecom UPS (UPS rating shall be confirmed during Detailed

Engineering


Bidder understands that rating (5 kVA) will remain valid during the

bidding process and suitable

commercial & time extension provisions will be made available

in the contract to accommodate

any change in the rating at the time of detailed engineering

Bidder to supply 5 kVA Telecom UPS.

39 ELECTRICAL SOR FOR NAUDA

Battery Backup time shall be 12

hours. Clause 4.3, page 04 of 12

As per Clause No. 7.19 (Page 16

of 46) of Electrical Design Basis, back up time required is 8 Hours.

Please clarify

Back up time shall be 8 hours

40

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

Design, Engineering, Manufacturing, Assembling, Supply, Installation,

Testing & Commissioning of Floor

mountable type, Security Room Utility Transformer and Utility Distribution

Board


This Distribution board is neither shown in the Electrical Single Line

Diagram nor in the 2.1.

SUMMARY SCOPE OF SUPPLY TABLE-1: Electrical Scope of

supply for Nadua site/TABLE-2:

Electrical Scope of supply for East Khagorijan site In case this is fed

from the Normal LV Switchboard ,

kindly update the same in the feeder list

Bidder shall consider transformer

feeders in Normal switchboard

41

ELECTRICAL SOR FOR


Incomer : 1 No. of 32A, 240VAC, 16kA

for 1 Sec, TP MCCB Outgoing Feeders : 1. 12 Nos. of 6A,

Since the MLDB which provides

the source to these LDBs are rated for 10 kA for 1 Sec, We suggest

MLDB short circuit rating shall be 16 kA.

SL




240VAC, 16kA for 1 Sec, DP RCBO

with ΔIn of100mA. Clause 6.5, page

05 of 12

the fault rating for LDBs to be

maintained as 10 kA in place of 16

kA. Please confirm


KHAGORIJAN

Incomer : 1 No. of 32A, 240VAC, 16kA

for 1 Sec, TP MCCB

Outgoing Feeders : 1. 12 Nos. of 6A, 240VAC, 16kA for 1 Sec, DP RCBO

with ΔIn of100mA. Clause 6.6, page

05 of 12

Since the ELDB which provides

the source to these LDBs are rated

for 10 kA for 1 Sec, We suggest the fault rating for LDBs to be

maintained as 10 kA in place of 16

kA. Please confirm

ELDB short circuit rating shall be 16 kA.


KHAGORIJAN



Testing & Commissioning of Wall / Floor mountable type 240VAC ETP &

OWS Emergency Lighting Distribution

Board Clause 6.6, page 05 of 12

Quantity for this switchboard is

mentioned as "1 LOT”. Bidder

presumes that the same is to be read as “1 EA”. Please confirm

Confirmed.


KHAGORIJAN


Assembling, Supply, Installation, Testing & Commissioning of Floor

mountable type, Electric Heat Tracing

System complete with EHT Transformer of 50kVA, 415V/240V

AC, 50Hz, 3 phase, 3 wire,

Delta/delta, 4% impedance, Off Load Tap changer (OCTC) with ±5% in

steps of 2.5%. Clause 7.1, page 06 of

12

Bidder understands that their

scope is limited to providing HEAT TRACING DISTRIBUTION BOARD

consisting of EHT Transformer of

50kVA, 415V/240V AC, 50Hz, 3 phase, 3 wire, Delta/delta, 4%

impedance, Off Load Tap changer

(OCTC) with ±5% in steps of 2.5% & along with requisite number of

Outgoing Circuits fed via MCBs

with Earth Leakage Protection Please confirm

Bidder shall also supply heat

tracing controller with display panel which receives RTD input

from the corresponding heat trace

pipe lines and provide output to the heat tracing circuits through

the heat tracing Distribution

board. The heat tracing line list is provided for the bidder to estimate

the no of circuits required. Scope

includes supply and laying of RTD cables from field to CCR, supply

and installation of power cable

from the DB to the field junction box provided by others. Further

Heat tracing specification shall be

referred.

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45

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN



Testing & Commissioning of Non-Segregated Phase Bus Duct enclosing

Copper bus bars


Bidder requests to provide DWG

No. 17039-ND-E-DW-9012

ELECTRICAL SUBSTATION LAYOUT & DWG No. 17039-EK-E-

DW-8012 ELECTRICAL

SUBSTATION LAYOUT in AutoCAD format to measure the

length of the busducts connecting

Gas Generator to LV Switchboard

AutoCAD drawing will be provided.


NAUDA



Testing & Commissioning of the Complete High mast lighting system

with High mast (30m height) of double

sided arrangement Clause 9.1, page 06 of 12

Quantity of High masts motioned

in ELECTRICAL SOR FOR NAUDA

is different from the quantity mentioned in 2.1. SUMMARY

SCOPE OF SUPPLY TABLE-1:

Electrical Scope of supply for Nadua site. We presume that

"ELECTRICAL SOR FOR NAUDA” will supersede the other. Please

confirm.

High Mast quantity shall be 5 nos.

refer Corr1_CPI9724P19

47

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

Incomer : 1 No. of 32A, 240VAC, 16kA for 1 Sec, TP MCCB

Outgoing Feeders:

1. 12 Nos. of 6A, 240VAC, 16kA for 1 Sec, DP RCBO with ΔIn of100mA


Since the MLDB which provides the source to these LDBs are rated

for 10 kA for 1 Sec, We suggest

the fault rating for LDBs to be maintained as 10 kA in place of 16

kA. Please confirm.

MLDB short circuit rating shall be

16 kA.

48

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

Incomer: 1 No. of 32A, 240VAC, 16kA for 1 Sec, TP MCCB

Outgoing Feeders:

1. 12 Nos. of 6A, 240VAC, 16kA for 1 Sec, DP RCBO with ΔIn of100mA


Since the ELDB which provides the source to these LDBs are rated

for 10 kA for 1 Sec, We suggest

the fault rating for LDBs to be maintained as 10 kA in place of 16

kA. Please confirm

ELDB short circuit rating shall be

16 kA.

49 ELECTRICAL SOR FOR Design, Engineering, Manufacturing, Bidder understands from DWG Air conditioners shall be

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NAUDA / EAST

KHAGORIJAN


Testing & Commissioning of SPLIT /

DUCTABLE SPLIT TYPE AIR CONDITIONERS

2 Ton High Wall Split AC - 5 Star

Location: All containerized room Clause 17.1, page 08 of 12

No. 17039-ND-E-DW-9012


LAYOUT & DWG No. 17039-EK-E-DW-8012 ELECTRICAL

SUBSTATION LAYOUT that

Normal LV Switchgear Room, Emergency Switchgear room &

Battery rooms are not required to

be Air Conditioned. Please confirm

considered for CCR room,

marshalling room, UPS room,

Normal switchgear room, emergency switchgear room.

Battery room shall have exhaust

fan. Bidder shall decide the no of AC units based on the heat load of

the equipments that are supplied.

If AC unit required is more than 10 nos. it shall be included as part

of line item 1 prefabricated

substation.

In SOR a separate line item is

provided for the Air conditioning unit. Bidder shall verify the

quantity based on the heat load of supplied equipments inside the

substation and estimate the

quantities accordingly. Any addition in quantity and

Ventilation fans shall be part of

the line item of prefabricated substation

50

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

Values provided in the SOR may vary

slightly. Vendor shall round of the quantity to nearest 500/1000 mtr

drum.

Notes 2, Page 12 of 12

Please confirm that this is

applicable for Serial No. 18 CABLES. Suitable commercial &

Time extension provisions will be

made available in the contract to accommodate any increase in

quantity beyond the rounded off

quantity. Also please note that

Bidder to note that rounding off of

the quantities to nearest cable values. This is a lump sum

contract. Quantity mentioned in

SOR is tentative. Bidders have to estimate required and quote

accordingly.

SL




rounding off of the quantities to

nearest 500/1000 mtr will have

huge loading on the price. Hence request you to kindly revise the

round off value to nearest 100

meter


KHAGORIJAN

General

SOR items especially for cables,

trays, earthing, other engineered

items which are quantified, whether Bidder should treat them

as "Quantity to Order" or

"Quantity to be Paid" by the Purchaser.

This is a lump sum contract. Quantity mentioned in SOR is

tentative. Bidders have to estimate

required and quote accordingly.

52 General

Bidder understands that the

Quantities wherever mentioned in SOR form the basis of offer. Any

Increase or decrease during execution will be compensated

with time & price.

This is a lump sum contract. Quantity mentioned in SOR is


53 General

There is no line item for requirement of structural steel.

Bidder requests OIL to note that structural steel shall be required

for mounting panels, cable trays,

etc. Bidder requests OIL to include nominal quantity of steel in Tons

for the same.




54

Electrical &

Instrumentation Tender

Completion Period :

Eight Months (8) from the Date of

Letter of Award (LOA).

The completion period is

mentioned as 8 Months from LOA.

Looking at the volume of work &

detailing required, bidder

estimates that completion period

shall be 11 Months from

Tender condition prevails. P.O will

be processed as per company

norms

SL




Purchaser Order. Moreover,

Bidder requests OIL to confirm

Purchaser Order within 15 days

from issuing LOA as PO is must

for any procurement action from

the bidder. Purchaser to confirm

the understanding.

55

Electrical &


Quantity Variation Qurty#1: Bidder understands that

the price bid is in conjunction

with the SOR provided. There is

fixed quantities mentioned in

SOR. Bidder understands that the

add/delete will not be more than

5% of the quantity given in the

SOR. Purchaser to confirm the

understanding.

Query#2: We also understand that

being SOR based contract, any

addition with respect to tender

SOR will be paid as per unit rate.

In case the bidder is L1, the

detailed price break-up will be

submitted to purchaser for

approval (as given in Payment

terms clause). This break-up will

be base document for any addition





SL




during detailed engineering.

Purchaser to confirm the

understanding.

56

Electrical &


Selection of Bidder Bidder understands that the

evaluation is combined for both

Nadua & Khagorijan i.e both

locations will be awarded to only

one bidder.

Bidder understanding is correct

57

Electrical &


Price Variation due to Commodity

Variation

If the Delivery Period agreed is

more than contractual period from

the effective date of the Contract,

necessary adjustments in the

Price for the changes in cost of

labour and material components

shall be made as per the Indian

Electrical and Electronics

Manufacturers' Association

(IEEMA) Index/ RBI Wholesale

Price Index. Purchaser to confirm

this provision.

This is a firm price Tender.

58

Electrical &


Clause – 54, Liquidated Damages :

Time is the essence of this Contract.

In the event, the MPC Contractor fails

to complete the works within the

stipulated completion period

Bidder requests OIL to review the

clause, bidder request following

amendment:

(a) The maximum cap of LD is

requested as 5% instead of 7.5%.

Many of the contemporary PSU Oil

LD: 0.5% of the total order price

as stipulated in order, per week for

such delay or part thereof as

mentioned in SOS/TOR, subject to

maximum of 7.5%. The Company

may without prejudice to any

SL




mentioned elsewhere in the bidding

document, the Contractor shall be

liable to pay liquidated damages @

0.5% of the total Contract Value, per

week of delay or part thereof of delay

subject to maximum of 7.5% of the

Total Contract Value. Liquidated

Damages will be reckoned after expiry

of the completion period.

companies are accepting this

clause as max 5%.

(b) Bidder also requests Purchaser

to consider LD on the 'Undelivered

Portion' and not on the total

contract value due to the nature of

contract.

other method of recovery, deduct

the amount of such liquidated

damages from any amount due to

the Contractor.

Note: Normally, a Packaged Item is

considered as Unit and the supply and delivery should be in totality

as Unit and the LD on the delayed

period will be leviable considering the value of the Unit with GST.

However, in a situation, if a part of

the Unit could not be supplied with the packaged item, then the

value for purpose of LD will be the declared value of the part item

which is stated in the

Consignment Note or the value taken for Transit Insurance.

Both the Contractor & the Company agree that the above

percentages of liquidated damage

is genuine pre-estimates of loss /damage, which the Company

would have to suffer on account of

delay/breach on the part of the Contractor and the said amount

will be payable on demand without

there being any proof of the actual loss /or damage caused by such

delay/breach. Decision of the

SL




Company in the matter of

applicability liquidated damage

shall be final & binding on the Contractor.

59

Electrical &


Payment Terms :

(a) 10 % of Package Material Price

(SOR/P Item No. 1) against approval

of documents and drawings identified

in Contract at least in Code-2 and

against submission of Advance Bank

Guarantee (ABG) of equivalent

amount.

(b) 60% of Package Material Price

(SOR/P Item No. 1) against

submission of despatch documents

(along with copy of LR/GR and IRN)

together with full taxes, duties and

transportation charges.

(c) 15% of Package Material Price

(SOR/P Item No. 1) on successful

Erection/Installation and completion

of Commissioning.

(d) 15% of Package Material Price

(SOR/P Item No. 1) on successful

Qyery#1: Bidder requests

Purchaser to review the milestone

payment provided. Bidder

requests to keep the percentage as

(a) 10% (b) 75% (c) 10% (d) 5%.

Query#2: Bidder understands that

first milestone payment is against

deliverable (document submission)

and hence Advance BG shall not

be applicable. If ABG is must,

Purchaser to release this payment

along with LOI, on submission of

ABG by bidder. Purchaser to

confirm the understanding.

Query#3: Bidder understands that

payment under (b) & (c) are on

pro-rata basis. Purchaser to

confirm the understanding.

Tender Prevails

SL




completion of PGTR of the project

works (by others) and on receipt of

Final/As built

Drawings/Documents/Data/Manual

in requisite number of

copies/sets/CDs as per VDR specified

in bidding documents (to be identified

during kick off meeting, if not

specified in bidding documents)

60

Electrical &


Payment Terms :

(viii) In case site is not available up to

Six (6) months (wherever site work is

applicable),after receipt of all supplies

at site, the payment against the same

shall be released on submission of

additional Bank Guarantee of

equivalent amount valid for One year

(1) or such extended period as may be

required.

Bidder has noted the captioned

provision for retention payment.

Bidder is requesting Purchaser to

put cap of 60 days for (c) & 90

days for (d) from supply being time

critical project of only 8 months.

Tender Prevails.

61

Electrical &


Payment Terms :

(i) 1ST Milestone payment shall be

released only after receipt of

Performance Bank Guarantee (PBG)

As per the payment terms,

Purchaser has asked for ABG in

case of pure advance along with

LOA. Since Bidder is already

providing security of 10%, the

Tender Prevails. Bidder to refer.

SL




PBG shall be submitted along with

first consignment of supply.

Purchaser to confirm.

62

Electrical &


Page no : 55, Bid Prices :

The SOR is given under NIT

document. Bidder has to fill only 2

columns. Also, some clauses in the

tender state that Bidder needs to

quote with taxes and duties whereas

some clauses state Bidder shall quote

prices exclusive of Taxes and Duties.

Bidder understands that Bidder

needs to quote prices inclusive of

packing and forwarding,

transportation & marine cum

transit insurance but exclusive of

GST. Bidder requests customer to

confirm the same.


63

Electrical &


Transit Insurance Bidder understands Transit

insurance is Bidders' scope.

Bidder requests OIL to confirm the

same.

Confirmed

64

Electrical &


Clause – 9.2, page – 20, Bid Security

:

Tender clause states "The bank

Guarantee issued by the Bank must

be routed through SFMS Platform as

per following details:"

Bidder understands that Bank

Guarantee in form of Bid Security

is acceptable apart from SFMS.


same.


65

Electrical &


Clause – 8.3, page – 19, Price

Variation :

Bidder requests OIL to include

Price variation Clause on basis

constant fluctuation in prices of

Tender Prevails

SL




Price quoted by the bidder, shall

remain firm & fixed until completion

of the contract and will not be subject

to any variation, except as otherwise

specifically provided in the Bidding

Documents

Raw Materials and unstable

variation in foreign currencies.

Bidder requests OIL to note that

these clauses are widely accepted

by the industry and purchasing

organizations.

66

Electrical &


Add/ Delete rate Add/ Delete rates for items shall

be mutually discussed and signed

off during kickoff.

Original Tender and Corrigendum

Condition Prevails.

67

Electrical &


Clause – 3, page – 54, Prefabricated

container

The Scope of supply involves package

engineering, procurement, fabrication,

assembly, wiring, factory testing,

supply and installation of electrical

systems required for OCS Nadua and

GGS East Khagorijan including

transportation and unloading of

complete package/skid to respective

site

Bidder understands all containers

shall be supplied in prefabricated

manner. Bidder requests OIL to

confirm

Confirmed

68

Electrical &


Clause – 11, page – 76, Fabrication :

The fabrication of panels/ containers

shall be carried out at MPC

Contractor’s fabrication yard.

We are OEMs of Switchgear

systems and the fabrication shall

be at our Authorized partners'

works.


SL




69

Electrical &


Clause – 10, page – 90, Change in

Scope :

ALTERATIONS IN DESIGNS, PLANS,

DRAWINGS, SPECIFICATIONS

ORDERS AND INSTRUCTIONS…

Bidder requests OIL to define

timeline to freeze the engineering

quantity. OIL shall send formal

confirmation within 2 months

from Kick off Meeting for any

change in BOM & the same shall

be reckoned for work completion

schedule.

Any upward change in the

quantity beyond the mentioned

time/after approval of document

shall be mutually discussed &

suitable provision of time and cost

for contractual completion shall be

done.

Also, variation cap on

Quantities.


understanding.





70

Electrical &


Clause – 12, page – 90, Third Party

Inspection

Consultant will arrange Third Party

Inspection wherever necessary.

Bidder understands that Third

Paty Inspections as required shall

be arranged by Consultant and all

charges for the same shall be

borne by the consultant.

Confirmed.

71

Electrical &


Clause – 16, page – 92, Liaising with

Third Parties :

Bidder requests OIL/ Consultant

to extend their help for any

liaising to be done with third party

Confirmed for other Agencies

SL




COORDINATION WITH OTHER

AGENCIES:

agencies.

72

Electrical &


Clause – 21, page – 93, Termination

of Contract :

FAILURE BY THE CONTRACTOR TO

COMPLY WITH THE PROVISIONS OF

THE CONTRACT

In case performance of the vendor

is not successful, the corporation's

intent of cancelling the order shall

be notified with notice of atleast

30 days. Moreover, all the

payments of the material supplied

& material in 'Work in Progress'

shall be paid by the corporation.

Tender Prevails

73

Electrical Tender Electrical BEC Clause 1.2 :

1.2 The Bidder should have

experience of successfully supplied,

installed and commissioned at least

one number switchboard comprising

of PCC or PMCC or MCC panel

assembled inside a containerised

substation in the last five (05) years

reckoned from the bid closing date.

Bidder understands that team

'containerized substation' means

substation of modular/compact

design will be considered.

containerised substation refers to

prefabricated transportable

structural building which will

have modular/compact design

Electrical &


Site Layout Bidder requests OIL to provide

Site/plant Layout in AutoCAD

Format.

Will be provided to successful

bidder after award of contract

74

Electrical &


AC & Ventilation Bidder understands that AC &

Ventilation for the Container

needs to be provided under line

In SOR a separate line item is

provided for the Air conditioning

unit. Bidder shall verify the

SL




item of prefabricated substation. quantity based on the heat load of

supplied equipments inside the

substation and estimate the

quantities accordingly. Any

addition in quantity and

Ventilation fans shall be part of

the line item of prefabricated

substation.

75

Electrical Tender Soil Resistivity Bidder requests OIL to provide Soil

Resistivity report to enable the

bidder to design Earthing System.

Soil resistivity report will be

shared to successful bidder after

award of contract.

76 General Bidder understands that all

statutory approvals shall be taken

by purchaser.

Bidder understanding is not correct. It shall be bidder scope of

work


KHAGORIJAN

General Outgoing feeder details to be

provided for the UPS DBs.

90 nos. of Outgoing feeders shall be provided for AC UPS. For

telecom UPS it shall be 1o nos.

Battery charger shall be 20 nos.


KHAGORIJAN

General For lighting and heat tracing

system, 3Ph 3W system is

proposed with a Delta/Delta transformer in SOR. But in SLD,

Dyn11 transformers are shown.

Kindly confirm whether it is 3Ph 3W system or 3Ph 4W system.

3 phase 3 wire system shall be

used


KHAGORIJAN

General Utility DB & transformers quantity

is 1 as per the MODULAR PACKAGE CONTRACT (MPC–9)

tender document. But in SOR,

We require 2 nos. of Utility DB and transformer.

SL




there are 2 Utility DB &

transformers.


KHAGORIJAN

General Heat tracing DB incoming is 100A

in SLD and 150A in SOR.

Heat tracing DB incoming shall be

150A.


KHAGORIJAN

General Emergency Lighting DB incoming

is 100A in SLD and 150A in SOR.

Emergency Lighting DB incoming

shall be150A.

82

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

General Hazardous Area Classification drawing for the plant is not

provided. So the following

assumptions are made. Kindly Confirm.

Please refer the attached

hazardous area classification

drawing

83

ELECTRICAL SOR FOR


General

Only battery room is Zone 2

classified and the lighting fixtures and sockets for that room will be

Ex’d’ rated and classified as Zone-2, Gas group IIA/IIB, temperature

class T3. Quantity of fixtures and

sockets in Battery Room to be provided for the same.

Bidder shall follow SOR quantity.


Quantity mentioned in SOR is tentative. Bidders have to estimate


84

ELECTRICAL SOR FOR


General

LDBs in Plant areas will be Ex’d’

rated and classified as Zone-2, Gas group IIA/IIB, temperature

class T3.


85

ELECTRICAL SOR FOR


General

In SOR, there are 2 packages, Modular Electrical Packages and

Non-Modular electrical packages.

The offer will be made based on the SOR provided for both the

packages for both the sites.(i.e.,

the quantities and No. of feeders



Quantity mentioned in SOR is tentative. Bidders have to estimate


SL




including spare feeders will be

based on SOR only) Kindly

Confirm

86

ELECTRICAL SOR FOR

NAUDA / EAST

KHAGORIJAN

General

For all the 3 UPS (AC UPS, DC

UPS and telecom UPS), the UPS is

with integral DB. Kindly Confirm


87

ELECTRICAL SOR FOR


General

As only S frame MCTs are

mentioned in SOR, we understand

that MCTs are installed on External wall only. Kindly

Confirm.

Confirmed.

88

ELECTRICAL SOR FOR


General

As per the substation layout provided, for Normal LV

Switchgear room, Battery room &

CCR Room, 2 containers are combined together with a

detachable side wall. Kindly Confirm. Refer attached layout.


&&&&&&&&&&&&&&&&&&&&

Annexure - 1

Annexure - 2

Annexure - 3

Annexure - 4

CREATION OF SURFACE PRODUCTION FACILITIES (OCS & GGS) AT NADUA

& EAST KHAGORIJAN

Document Title : Specification for Lighting

Transformer

Kavin Document No. : 17039-ND-E-SP-9010

A 30 NOV 2018 ISSUED FOR REVIEW DS AD MSR/MSB

REV. DATE DESCRIPTION BY CHECKED APPROVED

PROJECT DOCUMENTS ARE CONTROLLED DOCUMENTS.

REVISIONS ARE DENOTED IN RIGHT HAND MARGIN

COMPANY:

OIL INDIA LIMITED

EPCM CONSULTANT:

KAVIN ENGINEERING AND SERVICES PRIVATE

LIMITED

Annexure-5

CREATION OF SURFACE PRODUCTION FACILITIES

(OCS & GGS) AT NADUA & EAST KHAGORIJAN

Specification for Lighting Transformer

Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 2 of 15

INDEX SHEET

PAGE NO. TITLE REV-A

1 COVER SHEET 30 NOV 2018

2 INDEX SHEET 30 NOV 2018

3 REVISION RECORD SHEET 30 NOV 2018

4 TABLE OF CONTENTS 30 NOV 2018

5-15 TECHNICAL SPECIFICATION FOR TRANSFORMER 30 NOV 2018




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Page : 3 of 15

REVISION RECORD SHEET

REV. NO. PURPOSE LIST OF PAGES UPDATED / MODIFIED SECTIONS, IF ANY

A ISSUED FOR REVIEW FIRST ISSUE




Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 4 of 15

TABLE OF CONTENTS

1. INTRODUCTION .......................................................................................................... 5

2. OBJECTIVE .................................................................................................................... 5

3. DEFINITIONS AND ABBREVIATIONS ...................................................................... 6

3.1. DEFINITIONS .................................................................................................... 6

3.2. ABBREVIATIONS .............................................................................................. 6

4. CODES AND STANDARDS ......................................................................................... 7

5. GENERAL REQUIREMENTS ...................................................................................... 12

6. SITE CONDITION ....................................................................................................... 12

7. SCOPE .......................................................................................................................... 12

8. NOISE LEVEL .............................................................................................................. 13

9. INSPECTION, TESTING AND ACCEPTANCE .......................................................... 13

10. PACKING AND DESPATCH ...................................................................................... 14




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Page : 5 of 15

1. INTRODUCTION

OIL INDIA LIMITED (OIL) a Government of India Enterprise, proposes to construct two

number of Surface Production facilities primarily for separation of Oil, Gas & Water and

processing of non-associated & associated gas in its producing field at Nadua and East

Khagorijan. The installation will be constructed on Modular design concept with emphasis on

skid mounted prefabricated facilities minimizing construction work at site to the extent possible

as per functional specifications of various process/utility packages. Instead of permanent civil

buildings, containerized offices/structures will be preferred.

The East Khagorijan (GGS) field is located near Dibrugarh town in Assam at a location

approximately 200m south (aerial distance) of LOC# at 27°32’N 95°09’E approx. elevation 121 M

MSL. The field is presently producing from 02 Nos. of wells through a QPS (Quick Production

Setup). Considering the potential of the field it is envisaged that Oil production is expected to

rise to a level of 1000 KLPD from 06 HP wells (02 wells + 04 future wells), 06 LP wells and 06

Non Associated Gas wells. Associated Gas is expected to be around 0.1 MMSCMD. The East

Khagorijan oil field also having the huge amount of non-associated gas potential and it is

expected to produce about 1 MMSCMD of non-associated natural gas from this area. It is also

expected that the field will produce about 800 KLPD of water along with the 1000 KLPD of

crude, so the plant design will be for handling 1800KLPD of total well fluid Oil India Limited

proposes to construct a Group Gathering Station at East Khagorijan to cater to the production in

that area.

Pipelines from Oil & Gas wells to the proposed plant and transfer lines for transporting Dry

Crude, treated Gas, treated water from the proposed plant to outside are not in the Project scope.

Procurement of LAND and construction of boundary wall in the land is not in the project scope

and will be done/ arranged by OIL separately.

KAVIN ENGINEERING AND SERVICES PRIVATE LIMITED is awarded a contract for

Engineering Procurement Construction Management to conceptualize / finalize the requirements

needed for the Oil Collection Station (OCS) at Nadua and Group Gathering Station (GGS) at East

Khagorijan.

2. OBJECTIVE

This specification defines the minimum technical requirements for the design, materials, supply,

Installation, painting, testing, inspection and commissioning of LIGHTING TRANSFORMER system

in Oil Collection Station (OCS) at Nadua and Group Gathering Station (GGS) at East Khagorijan.

VENDOR’s scope of supply shall include the furnishing of LIGHTING FIXTURE as complete and

functional unit, as described by the requisition.




Doc No : 17039 -ND-E-SP-9010

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Page : 6 of 15

3. DEFINITIONS AND ABBREVIATIONS

3.1. DEFINITIONS

Company / Owner - Oil India Limited (OIL)

EPCM - Kavin Engineering and Services Private Limited

MPC - Bidder / EPC Contractor who supplies equipment / system / sub-

system in modules

Supplier / Vendor - Manufacturer / Seller / Sub-Vendor

The words ‚may‛, ‚should‛ and ‚shall‛ have specific meanings as follows:

‚May‛ is used where alternatives are equally acceptable.

‚Should‛ is used where a provision is preferred.

‚Shall‛ is used where a provision is mandatory.

3.2. ABBREVIATIONS

AC Alternating Current

ACB Air Circuit Breaker

API American Petroleum Institute

ASTM American Society for Testing of Material

BIS Bureau of Indian Standards

BS British Standard Institute

CBCT Core Balance Current Transformer

CEAR Central Electricity Authority Regulations, 2010

CMRI Central Mining Research Institute

CT Current Transformer

DC Direct Current

DGMS Director General of Mines and Safety

DOL Direct On-Line Starter

ELCB Earth Leakage Circuit Breaker

ELR Earth Leakage Relay

EPCM Engineering, Procurement, Construction Management

ESD Emergency Shut Down

FAT Factory Acceptance Test

HFFR Halogen Free Flame Retardant




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HRC High Rupturing Capacity

HVAC Heating Ventilation Air Conditioning

IEC International Electro Technical Council

IEEE Institution of Electrical and Electronics Engineers

IP Ingress Protection

IRP Interposing Relay Panel

ITP Inspection and Test Plan

LV Low Voltage

MCB Miniature Circuit Breaker

MCC Motor Control Centre

MCCB Moulded Case Circuit Breaker

NEC National Electric Code (USA)

NFPA National Fire Protection Association

OISD Oil Industry Safety Directorate (Elect. Std.)

OMR Oil Mines Regulations, 2014

UPS Uninterrupted Power Supply

4. CODES AND STANDARDS

i. The equipment shall comply with the requirements of the latest revision of the following standards

issued by BIS unless otherwise specified.

CODES STANDARDS

IS 5 Colors for ready mixed paints and enamels

IS -772 (Part-1) (2nd rev.) AC electricity meters-general requirements

IS -1248 (1st rev.) Direct acting electrical indicating instruments

IS : 1271 Classification of lnsulating Materials.

IS-1646 Code of practice for the fire safety of buildings – Electrical

Installations

IS-1897 Copper strip for electrical purposes

IS-2189 Code of practice for selection: installation and maintenance

of automatic fire detection and alarm system

IS-2705 Current transformers

IS 2854 Method for determining the proof and the comparative




Doc No : 17039 -ND-E-SP-9010

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Page : 8 of 15

tracking indices of solid insulating materials.

IS-3034 Code of practice for the fire safety of industrial buildings –

Electrical generator and distribution stations

IS-3043 Code of practice for Earthing

IS-3156 Voltage transformers

IS-3231 Electrical relays for power systems protection.

IS-3618 Phosphate treatment of iron & steel for protection against

corrosion

IS-3646 Code of practice for Interior Illumination

IS-3716 Application guide for Insulation Coordination

IS-4051 Code of practice for the installation and maintenance of

electrical equipment in mines

IS-4171 Copper rods and bars for general engineering purpose

IS-5216 Guide for safety procedures and practices in electrical

work

IS-5571 Guide for selection of electrical equipment for hazardous

area

IS-5572 Classification of Hazardous Area (other than mines)

having flammable gases and vapours for electrical

installation

IS 5780 Electrical apparatus for explosive gas atmospheres

IS 5831 PVC insulation and sheath of electric cables

IS-6005 Code of practice of phosphating of iron &Steel

IS 6381 Electrical Apparatus For Explosive Gas Atmospheres -

Increased Safety 'E'

IS-6665 Code of practice for industrial Lighting

IS 7098-Part-1 Crosslinked polyethylene insulated PVC sheathed cables:

Part 1 for working voltage upto and including 1100 V

IS-7689 Guide for control of undesirable static electricity

IS 7693 Electrical Apparatus for Explosive Gas Atmospheres - Oil-

immersion "o"

IS 7724 Electrical Apparatus for Explosive Gas Atmospheres -




Doc No : 17039 -ND-E-SP-9010

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Page : 9 of 15

Powder Filling "q"

IS-7752 Guide for improvement of power factor- consumer

installations

IS-8478 Application guide for on load tap changers

IS-8623 Factory built assemblies of switchgear & control gear for

voltages up to and including 1000V AC and 1200V DC;

particular requirements for bus-bar trunking systems.

IS-9676 Reference ambient temperature for electrical equipment

IS-10028 Code of practice for selection, installation and maintenance

for transformer


for switchgear and control gear

IS 10810 Methods of test for cables

IS-11353 Guide for uniform system marking & identification of

conductors and apparatus terminals.

IS : 11171 Dry type power transformers

IS-12360 Voltage bands for electrical installations including

preferred voltages and frequencies

IS-13234 Guide for short circuit calculations in the three phase AC

system

IS- 13235 Calculation of the effects of Short- Circuit Currents

IS-13408-1 Code of practices for the selection, installation and

maintenance of electrical apparatus for use in potentially

explosive atmospheres

IS-13947 (Part 4 – Part 5) LV switchgear and control gear

IS-15142 Guide to the use of electrical apparatus for potentially

explosive atmospheres in the presence of combustible

dusts

IS-16102 Self Ballasted LED Lamps for General Lighting Services

IS-16103 DC or AC Supplied Electronic Controlgear for LED

Modules – Performance Requirement

IS-16104 LED Modules for General Lighting

IS / IEC 60529 Degree of protection provided by enclosures (IP Code)




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Page : 10 of 15

IS/IEC- 60947 Low voltage switchgear and controlgear : All parts

IS/IEC 60079-0 Electrical Apparatus for explosive gas atmospheres –

General requirements

IS/IEC 60079-1 Equipment protection flameproof enclosures ‚d‛

IEC 60079-5 Equipment Protection by Powder filling ‚q‛

IEC 60079-6 Equipment Protection by Oil immersion ‚o‛

IEC 60079-7 Equipment Protection by Increased Safety Type ‚e‛

IEC 60079-11 Equipment Protection by Intrinsic safety ‚I‛

IEC 60079-12 With air according to their maximum experimental safe

gaps and minimum igniting currents

IS/IEC 60079-15 Electrical apparatus for explosive gas atmosphere –

construction, test and making of type of protection ‚n‟

electrical apparatus

IEC 60228 Specification for conductor of insulated cables

IEC 60287 Electric cables - Calculation of the current rating (Current

rating equations (100% load factor) and calculation of

losses)

IEC 60502-1 Power cables with extruded insulation and their

accessories for rated voltages from 1kV (Um=1.2kV) up to

30kV (Um=36kV)

IEC 60885 Electrical test methods for electric cables

OISD-STD-110 Recommended Practices on Static Electricity

OISD-STD-113 Classification of Area for Electrical Installations at

Hydrocarbon processing and handling Facilities

OISD-GDN-115 Guidelines on Fire Fighting Equipment and Appliances in

Petroleum Industry

OISD-STD-116 Fire Protection Facilities for Petroleum Refineries and

Oil/Gas Processing Plants

OISD-STD-117 Fire protection Facilities for Petroleum Depots, Terminals,

Pipeline Installations and Lube Oil Installations

OISD-STD-118 Layouts for Oil and Gas installations

OISD-STD-137 Inspection of Electrical Equipment




Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 11 of 15

OISD-RP-146 Preservation of Idle Electrical Equipment

OISD-RP-147 Inspection and Safe Practices during electrical installation

OISD-RP-148 Inspection & Safe Practices during overhauling Electrical

Equipment

OISD-RP-149 Design Aspects for Safety in Electrical System

OISD-STD-163 Process Control Room Safety

OISD STD-173 Fire Protection System for Electrical Installations

OISD-STD-180 Lightning Protection (OISD - GDN – 180)

OISD-STD-189 Standard on Fire Fighting Equipment for Drilling Rigs,

Work Over Rigs and production Installations.

ii. In case of imported equipment standards of the country of origin shall be applicable if these

standards are equivalent or stringent than the applicable Indian standards.

iii. The equipment shall also conform to the provisions of Indian Electricity rules and other statutory

regulations currently in force in the country.

iv. In case Indian standards are not available for any equipment, standards issued by IEC / BS / VDE /

IEEE / NEMA or equivalent agency shall be applicable.

v. In case of any contradiction between various referred standards specifications and statutory

regulations the following order of priority shall govern:

Statutory regulations

Design Basis

Equipment specification

Codes and standards

vi. STATUTORY REQUIREMENTS & APPROVALS

The designed electrical system shall confirm to latest version of statutory and government

regulations. As a minimum need to meet and fulfil the requirement of following statutory

Acts/regulations, necessary for obtaining all statutory approvals/ certificates, as required from

concerned authorities:

Indian Electricity Act.

Central Electrical Authority Regulations 2010.

The Petroleum Rules.

Petroleum and Explosives Safety Organisation.

Central Pollution Control Board Norms.




Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 12 of 15

Any other applicable Rules / Regulation of central/ state/ local statutory body.

5. GENERAL REQUIREMENTS

5.1. All electrical equipment and accessories / material shall be suitable for installation and operation

for onshore application.

5.2. Supplier shall ensure availability of spare parts and maintenance support services for the

offered equipment at least for 20 years from the date of supply.

5.3. Supplier shall give a notice of at least one-year to the end user of equipment and EPCM

CONSULTANT contractor before phasing out the product/spares to enable the end user for

placement of order for spares and services.

The electrical system shall be designed to provide:

Safety to personnel and equipment both during operation & maintenance..

Reliability of service

Minimal Fire Risk

Ease of maintenance and convenience of operation

Automatic protection of electrical equipment through automatic relaying system

Electrical supply to equipment and machinery within the design operating limits.

Adequate provision for future extension and modification

Suitability or applicable environmental factors.

6. SITE CONDITION

All electrical equipment and accessories/ materials are to be suitable for installation and operation

under dusty, humid, corrosive and hostile environment with special degree of hazards. Refer to

‚17039-ND-P-GD-1002, Site Conditions and available utilities‛ for details.

7. SCOPE

7.1 CONSTRUCTION

a) The transformer shall be dry type, ANAN cooled suitable for indoor installations. Transformer shall

be housed in freestanding enclosures of welded sheet steel frames with expanded metal screens of

suitable size or louvers backed by wire-mesh. Transformer and the enclosure shall be suitably

reinforced to prevent distortion during handling. Base channels shall be provided with skids and

pulling eyes to facilitate handling. Tag plate shall be provided.

b) The transformer shall be double wound core type with cold rolled grain oriented silicon steel

insulated laminations and clamped to minimise vibrations and noise. Core fastening bolts shall be

insulated to reduce losses and to avoid hot spots. All parts of the magnetic circuit shall be effectively

connected to earth system.




Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 13 of 15

c) The winding shall be of copper and shall be designed for full load current and to withstand the

thermal and electromagnetic stresses arising due to the through fault current. The current carrying

winding joints shall be electrically brazed.

d) 415V/240V AC, 50Hz, 3 phase, 3 wire, Delta/Delta, 4% impedance, Off Load Tap changer (OCTC)

with ±5% in steps of 2.5%, The windings shall be provided with class B for lighting transformers upto

100kVA and class H insulation for rating more than 100kVA.

e) Different parts of transformers shall be connected by copper flexible for earth continuity purpose.

f) All the fasteners and bolts shall be hot dip galvanised as per IS: 802 or zinc passivated.

g) All surfaces to be painted shall be thoroughly cleaned, descaled, made free from rust and shall be

epoxy painted.

7.2 TERMINALS

a) Windings shall be brought out and terminated in cable boxes.

b) Cable boxes shall be supplied with cable lugs and glands. For power /control cables double

compression cable glands and crimped type tinned copper cable lugs shall be supplied. Gland plate

shall be removable type. For single core cables, gland plate shall be of non- magnetic material.

7.3 ACCESSORIES

Tappings and control gears shall be provided on the Primary side. Tap changer shall be off- circuit

type. Under conditions of external short circuit, the tap changing equipment shall be capable of

carrying the same current as the winding. Unless specified otherwise, tap changer regulation range

shall be +/-5% with each step of 2.5%. Tap changing mechanism shall be easily accessible and it shall

be possible to change the taps without opening the main transformer enclosure.

8. NOISE LEVEL

Audible noise level for lighting transformers shall be as below:

KVA Average sound level decibel (At 30cm from transformer)

0-50 50

51-150 55

151·500 65

9. INSPECTION, TESTING AND ACCEPTANCE

Owner’s representative shall be given free access in the works from time to time for stage wise

inspection and progress reporting. Four weeks advance notice shall be given to witness the final

routine test as per IS-11171. These tests shall be performed on the complete assembly at

manufacturer‘s works. Test certificates duly signed by owner’s representative shall be issued as a part

of final document.




Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 14 of 15

10. PACKING AND DESPATCH

The equipment shall be properly packed for the selected mode of transportation i.e. by ship /rail or

trailer. The equipment shall be wrapped in polythene sheets before being placed in crates/cases to

prevent damage to finish. Crates /cases shall have skid bottom for handling. Special notations such as

`Fragile', `This side up', `Center of gravity’, `Weight’, Owners particulars, PO nos. etc., shall be clearly

marked on the package together with other details as per purchase order. The equipment may be

stored outdoors for long periods before installation. The packing shall be suitable for outdoor storage

in areas with heavy rains/high ambient temperature unless otherwise agreed.

Note:

1. Lighting Transformer shall be constructed complying to Seismic Zone 5 as per IEC 60068-2-47,59.

2. Type Test Certificate, not more than 5 years old, conducted on similar type of equipment shall be

submitted along with the offer.

DATA SHEET OF

LIGHTING TRANSFORMER (DRY TYPE)

1.0 SITE CONDITIONS

1. 1 Maximum ambient temperature : 41°C

1.2 Minimum ambient temperature : 2°C

1.3 Design ambient temperature : 45°C

1.4 Relative humidity : 98% Max.

1.5 Altitude : Less than 1000 m above MSL

1.6 Environment : Highly corrosive and dusty as applicable

1.7 Location : Dibrugarh town in Assam, India

2.0 OPERATING CONDITIONS

2.1 Primary voltage : 415V

2.2 Fault level : 50 KA (1 sec.)

2.3 Earthing system

Primary : Unearthed

Secondary : Solidly Earthed




Doc No : 17039 -ND-E-SP-9010

Rev : A

Page : 15 of 15

3.0 GENERAL DATA

3. 1 Service : Lighting transformer

3. 2 Duty : Continuous

3.3 Type of cooling : Air Natural cooled (AN)

3.4 Installation : Indoor

3.5 Painting : Epoxy

3.6 Colour : Shade 631 as per IS-5

4.0 ELECTRICAL DATA

4.1 No. of windings : Two

4.2 Phase : Three phase

4.3 Frequency : 50 Hz +/- 3%

4.4 Insulation class:

Distribution transformer : Not applicable

Lighting/ Isolation transformer : F (upto 100KVA) /H (above 100KVA)

4.5 Winding insulation : Uniform

5.0 SPECIFIC REQUIREMENTS Normal/Emergency Lighting

5.1 Transformer Tag no. : TBC

5.2 Rated KVA : * kVA

5,3 Voltage ratio : 415V / 240V

5.4 % Impedance : As per IS

5.5 Terminal details

Terminal location

Primary : *

Secondary : *

5.6 Primary : Cable box

Cable size/Type : */CU, XLPE, armoured

Secondary : Cable box


NOTE : ` *’ Data to be furnished by Vendor / Contractor.

CREATION OF SURFACE PRODUCTION FACILITIES (OCS & GGS) AT NADUA

& EAST KHAGORIJAN


Transformer

Kavin Document No. : 17039-EK-E-SP-9010


REV. DATE DESCRIPTION BY CHECKED APPROVED



COMPANY:

OIL INDIA LIMITED

EPCM CONSULTANT:


LIMITED

Annexure - 6




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 2 of 15

INDEX SHEET






5-15 TECHNICAL SPECIFICATION FOR TRANSFORMER 30 NOV 2018




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 3 of 15







Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 4 of 15

TABLE OF CONTENTS

1. INTRODUCTION .......................................................................................................... 5

2. OBJECTIVE .................................................................................................................... 5


3.1. DEFINITIONS .................................................................................................... 6

3.2. ABBREVIATIONS .............................................................................................. 6



6. SITE CONDITION ....................................................................................................... 12

7. SCOPE .......................................................................................................................... 12

8. NOISE LEVEL .............................................................................................................. 13

9. INSPECTION, TESTING AND ACCEPTANCE .......................................................... 13

10. PACKING AND DESPATCH ...................................................................................... 14




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 5 of 15

1. INTRODUCTION

OIL INDIA LIMITED (OIL) a Government of India Enterprise, proposes to construct two

number of Surface Production facilities primarily for separation of Oil, Gas & Water and

processing of non-associated & associated gas in its producing field at Nadua and East

Khagorijan. The installation will be constructed on Modular design concept with emphasis on

skid mounted prefabricated facilities minimizing construction work at site to the extent possible

as per functional specifications of various process/utility packages. Instead of permanent civil

buildings, containerized offices/structures will be preferred.

The East Khagorijan (GGS) field is located near Dibrugarh town in Assam at a location

approximately 200m south (aerial distance) of LOC# at 27°32’N 95°09’E approx. elevation 121 M

MSL. The field is presently producing from 02 Nos. of wells through a QPS (Quick Production

Setup). Considering the potential of the field it is envisaged that Oil production is expected to

rise to a level of 1000 KLPD from 06 HP wells (02 wells + 04 future wells), 06 LP wells and 06

Non Associated Gas wells. Associated Gas is expected to be around 0.1 MMSCMD. The East

Khagorijan oil field also having the huge amount of non-associated gas potential and it is

expected to produce about 1 MMSCMD of non-associated natural gas from this area. It is also

expected that the field will produce about 800 KLPD of water along with the 1000 KLPD of

crude, so the plant design will be for handling 1800KLPD of total well fluid Oil India Limited

proposes to construct a Group Gathering Station at East Khagorijan to cater to the production in

that area.

Pipelines from Oil & Gas wells to the proposed plant and transfer lines for transporting Dry

Crude, treated Gas, treated water from the proposed plant to outside are not in the Project scope.

Procurement of LAND and construction of boundary wall in the land is not in the project scope

and will be done/ arranged by OIL separately.

KAVIN ENGINEERING AND SERVICES PRIVATE LIMITED is awarded a contract for

Engineering Procurement Construction Management to conceptualize / finalize the requirements

needed for the Oil Collection Station (OCS) at Nadua and Group Gathering Station (GGS) at East

Khagorijan.

2. OBJECTIVE


Installation, painting, testing, inspection and commissioning of LIGHTING TRANSFORMER system

in Oil Collection Station (OCS) at Nadua and Group Gathering Station (GGS) at East Khagorijan.

VENDOR’s scope of supply shall include the furnishing of LIGHTING FIXTURE as complete and

functional unit, as described by the requisition.




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 6 of 15


3.1. DEFINITIONS




system in modules


The words ‚may‛, ‚should‛ and ‚shall‛ have specific meanings as follows:

‚May‛ is used where alternatives are equally acceptable.

‚Should‛ is used where a provision is preferred.

‚Shall‛ is used where a provision is mandatory.

3.2. ABBREVIATIONS











DC Direct Current












Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 7 of 15








LV Low Voltage












CODES STANDARDS




IS : 1271 Classification of lnsulating Materials.


Installations









Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 8 of 15








corrosion







work


area



installation











immersion "o"





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Rev : A

Page : 9 of 15

Powder Filling "q"


installations







for transformer






IS : 11171 Dry type power transformers




system








dusts









Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 10 of 15




IS/IEC 60079-1 Equipment protection flameproof enclosures ‚d‛

IEC 60079-5 Equipment Protection by Powder filling ‚q‛

IEC 60079-6 Equipment Protection by Oil immersion ‚o‛

IEC 60079-7 Equipment Protection by Increased Safety Type ‚e‛

IEC 60079-11 Equipment Protection by Intrinsic safety ‚I‛




construction, test and making of type of protection ‚n‟





losses)



30kV (Um=36kV)






Petroleum Industry










Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 11 of 15




Equipment
















Design Basis


Codes and standards














Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 12 of 15













Minimal Fire Risk






6. SITE CONDITION



‚17039-EK-P-GD-1002, Site Conditions and available utilities‛ for details.

7. SCOPE

7.1 CONSTRUCTION

a) The transformer shall be dry type, ANAN cooled suitable for indoor installations. Transformer shall

be housed in freestanding enclosures of welded sheet steel frames with expanded metal screens of

suitable size or louvers backed by wire-mesh. Transformer and the enclosure shall be suitably

reinforced to prevent distortion during handling. Base channels shall be provided with skids and

pulling eyes to facilitate handling. Tag plate shall be provided.

b) The transformer shall be double wound core type with cold rolled grain oriented silicon steel

insulated laminations and clamped to minimise vibrations and noise. Core fastening bolts shall be

insulated to reduce losses and to avoid hot spots. All parts of the magnetic circuit shall be effectively

connected to earth system.




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 13 of 15

c) The winding shall be of copper and shall be designed for full load current and to withstand the

thermal and electromagnetic stresses arising due to the through fault current. The current carrying

winding joints shall be electrically brazed.

d) 415V/240V AC, 50Hz, 3 phase, 3 wire, Delta/Delta, 4% impedance, Off Load Tap changer (OCTC)

with ±5% in steps of 2.5%, The windings shall be provided with class B for lighting transformers upto

100kVA and class H insulation for rating more than 100kVA.

e) Different parts of transformers shall be connected by copper flexible for earth continuity purpose.

f) All the fasteners and bolts shall be hot dip galvanised as per IS: 802 or zinc passivated.

g) All surfaces to be painted shall be thoroughly cleaned, descaled, made free from rust and shall be

epoxy painted.

7.2 TERMINALS

a) Windings shall be brought out and terminated in cable boxes.

b) Cable boxes shall be supplied with cable lugs and glands. For power /control cables double

compression cable glands and crimped type tinned copper cable lugs shall be supplied. Gland plate

shall be removable type. For single core cables, gland plate shall be of non- magnetic material.

7.3 ACCESSORIES

Tappings and control gears shall be provided on the Primary side. Tap changer shall be off- circuit

type. Under conditions of external short circuit, the tap changing equipment shall be capable of

carrying the same current as the winding. Unless specified otherwise, tap changer regulation range

shall be +/-5% with each step of 2.5%. Tap changing mechanism shall be easily accessible and it shall

be possible to change the taps without opening the main transformer enclosure.

8. NOISE LEVEL

Audible noise level for lighting transformers shall be as below:

KVA Average sound level decibel (At 30cm from transformer)

0-50 50

51-150 55

151·500 65

9. INSPECTION, TESTING AND ACCEPTANCE

Owner’s representative shall be given free access in the works from time to time for stage wise

inspection and progress reporting. Four weeks advance notice shall be given to witness the final

routine test as per IS-11171. These tests shall be performed on the complete assembly at

manufacturer‘s works. Test certificates duly signed by owner’s representative shall be issued as a part

of final document.




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 14 of 15

10. PACKING AND DESPATCH

The equipment shall be properly packed for the selected mode of transportation i.e. by ship /rail or

trailer. The equipment shall be wrapped in polythene sheets before being placed in crates/cases to

prevent damage to finish. Crates /cases shall have skid bottom for handling. Special notations such as

`Fragile', `This side up', `Center of gravity’, `Weight’, Owners particulars, PO nos. etc., shall be clearly

marked on the package together with other details as per purchase order. The equipment may be

stored outdoors for long periods before installation. The packing shall be suitable for outdoor storage

in areas with heavy rains/high ambient temperature unless otherwise agreed.

Note:

1. Lighting Transformer shall be constructed complying to Seismic Zone 5 as per IEC 60068-2-47,59.

2. Type Test Certificate, not more than 5 years old, conducted on similar type of equipment shall be

submitted along with the offer.

DATA SHEET OF

LIGHTING TRANSFORMER (DRY TYPE)

1.0 SITE CONDITIONS

1. 1 Maximum ambient temperature : 41°C

1.2 Minimum ambient temperature : 2°C

1.3 Design ambient temperature : 45°C

1.4 Relative humidity : 98% Max.

1.5 Altitude : Less than 1000 m above MSL

1.6 Environment : Highly corrosive and dusty as applicable

1.7 Location : Dibrugarh town in Assam, India

2.0 OPERATING CONDITIONS

2.1 Primary voltage : 415V

2.2 Fault level : 50 KA (1 sec.)

2.3 Earthing system

Primary : Unearthed

Secondary : Solidly Earthed




Doc No : 17039 -EK-E-SP-9010

Rev : A

Page : 15 of 15

3.0 GENERAL DATA

3. 1 Service : Lighting transformer

3. 2 Duty : Continuous

3.3 Type of cooling : Air Natural cooled (AN)

3.4 Installation : Indoor

3.5 Painting : Epoxy

3.6 Colour : Shade 631 as per IS-5

4.0 ELECTRICAL DATA

4.1 No. of windings : Two

4.2 Phase : Three phase

4.3 Frequency : 50 Hz +/- 3%

4.4 Insulation class:

Distribution transformer : Not applicable

Lighting/ Isolation transformer : F (upto 100KVA) /H (above 100KVA)

4.5 Winding insulation : Uniform

5.0 SPECIFIC REQUIREMENTS Normal/Emergency Lighting

5.1 Transformer Tag no. : TBC

5.2 Rated KVA : * kVA

5,3 Voltage ratio : 415V / 240V

5.4 % Impedance : As per IS

5.5 Terminal details

Terminal location

Primary : *

Secondary : *

5.6 Primary : Cable box


Secondary : Cable box


NOTE : ` *’ Data to be furnished by Vendor / Contractor.

CREATION OF SURFACE PRODUCTION FACILITIES (OCS & GGS) AT NADUA & EAST

KHAGORIJAN


Fixtures and Distribution Board

Kavin Document No. : 17039-ND-E-SP-9009


REV. DATE DESCRIPTION BY

CHECKE

D

APPROVE

D



COMPANY:

OIL INDIA LIMITED

EPCM CONSULTANT:


LIMITED

Annexure - 7



Specification for Lighting Fixtures and

Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 2 of 18

INDEX SHEET






5-18

TECHNICAL SPECIFICATION FOR

LIGHTING FIXTURES AND

DISTRIBUTION BOARD

30 NOV 2018




Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 3 of 18







Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 4 of 18

TABLE OF CONTENTS

1. INTRODUCTION .......................................................................................................... 5

2. OBJECTIVE .................................................................................................................... 5


3.1. DEFINITIONS .................................................................................................... 6

3.2. ABBREVIATIONS .............................................................................................. 6



6. SITE CONDITION ....................................................................................................... 12

7. SCOPE .......................................................................................................................... 12

8. LIGHTING FIXTURES (LUMINAIRES) ...................................................................... 17

9. TESTING AND INSPECTION .................................................................................... 18

10. PACKING AND TRANSPORT ................................................................................... 18




Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 5 of 18

1. INTRODUCTION

OIL INDIA LIMITED (OIL) a Government of India Enterprise, proposes to construct two number of

Surface Production facilities primarily for separation of Oil, Gas & Water and processing of non-

associated & associated gas in its producing field at Nadua and East Khagorijan. The installation will

be constructed on Modular design concept with emphasis on skid mounted prefabricated facilities

minimizing construction work at site to the extent possible as per functional specifications of various

process/utility packages. Instead of permanent civil buildings, containerized offices/structures will be

preferred.

The East Khagorijan (GGS) field is located near Dibrugarh town in Assam at a location approximately

200m south (aerial distance) of LOC# at 27°32’N 95°09’E approx. elevation 121 M MSL. The field is

presently producing from 02 Nos. of wells through a QPS (Quick Production Setup). Considering the

potential of the field it is envisaged that Oil production is expected to rise to a level of 1000 KLPD

from 06 HP wells (02 wells + 04 future wells), 06 LP wells and 06 Non Associated Gas wells.

Associated Gas is expected to be around 0.1 MMSCMD. The East Khagorijan oil field also having the

huge amount of non-associated gas potential and it is expected to produce about 1 MMSCMD of non-

associated natural gas from this area. It is also expected that the field will produce about 800 KLPD of

water along with the 1000 KLPD of crude, so the plant design will be for handling 1800KLPD of total

well fluid Oil India Limited proposes to construct a Group Gathering Station at East Khagorijan to

cater to the production in that area.

Pipelines from Oil & Gas wells to the proposed plant and transfer lines for transporting Dry Crude,

treated Gas, treated water from the proposed plant to outside are not in the Project scope.

Procurement of LAND and construction of boundary wall in the land is not in the project scope and

will be done/ arranged by OIL separately.

KAVIN ENGINEERING AND SERVICES PRIVATE LIMITED is awarded a contract for Engineering

Procurement Construction Management to conceptualize / finalize the requirements needed for the

Oil Collection Station (OCS) at Nadua and Group Gathering Station (GGS) at East Khagorijan.

2. OBJECTIVE


Installation, painting, testing, inspection and commissioning of LIGHTING FIXTURE AND

LIGHTING FIXTURE DISTRIBUTION BOARD system in Oil Collection Station (OCS) at Nadua and

Group Gathering Station (GGS) at East Khagorijan. VENDOR’s scope of supply shall include the

furnishing of LIGHTING FIXTURE as complete and functional unit, as described by the requisition.




Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 6 of 18


3.1. DEFINITIONS




system in modules


The words “may”, “should” and “shall” have specific meanings as follows:

“May” is used where alternatives are equally acceptable.

“Should” is used where a provision is preferred.

“Shall” is used where a provision is mandatory.

3.2. ABBREVIATIONS











DC Direct Current












Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 7 of 18








LV Low Voltage












CODES STANDARDS





Installations










Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 8 of 18







corrosion







work


area



installation











immersion "o"


Powder Filling "q"




Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 9 of 18


installations







for transformer









system








dusts











Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 10 of 18


IS/IEC 60079-1 Equipment protection flameproof enclosures “d”

IEC 60079-5 Equipment Protection by Powder filling “q”

IEC 60079-6 Equipment Protection by Oil immersion “o”

IEC 60079-7 Equipment Protection by Increased Safety Type “e”

IEC 60079-11 Equipment Protection by Intrinsic safety “I”




construction, test and making of type of protection “n‟





losses)



30kV (Um=36kV)






Petroleum Industry












Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 11 of 18


Equipment
















Design Basis


Codes and standards















Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 12 of 18












Minimal Fire Risk






6. SITE CONDITION



“17039-ND-P-GD-1002, Site Conditions and available utilities” for details.

7. SCOPE

7.1 Lighting Distribution Board (LDB) And Lighting Panels

a) LDB and panels shall be of sheet steel enclosed and shall be fully dust and vermin proof,

providing a degree of protection of IP 52 for busbars, incoming and outgoing feeding

compartment and IP 42 for enclosure for transformer. Outdoor panels shall in addition be

completely weather-proof with a sloping canopy for protection against rain and providing a

degree of protection of IP 55. The sheet steel used shall be cold rolled and 2 mm thick.

b) All boards and panels shall be provided with hinged doors for access to equipment. Doors shall

be gasketted all round with neoprene gaskets. The lighting distribution boards shall be either

wall mounted/ stool mounted or floor mounted depending upon the dimension of DB and shall

be provided with MCCB for incomer and MCBs + ELCB for outgoing feeders. The hinged door of

incomer shall be interlocked so as to prevent opening of the door when the switch is ON and to




Distribution Board

Doc No : 17039 -ND-E-SP-9009

Rev : A

Page : 13 of 18

prevent closing of the switch with the door not fully closed. However, a device for bypassing the

door interlock shall be provided to enable the operation of the switch with the door open, when

necessary, for examination/maintenance. For wall mounting lighting panels when provided with

ELCBs and MCBs a hinged, latched front door shall be provided with key-locking facility and a

slotted Bakelite sheet inside. Only the ELCBs/MCBs operating knobs shall project out of the

bakelite sheet slots for safe operation and neat appearance.

c) Outdoor LDBs for street lighting/area lighting shall have ON/OFF operation through real time

based timer control in addition to manual control. In this case incomer to LDB shall have

suitably rated contactor in addition to MCCB and same shall be controlled by timer contacts. The

outgoing feeders of indoor LDB used for street lighting/area lighting shall have dedicated timer

controlled contactors in addition to MCB

d) All accessible live connection/metals shall be shrouded and it shall be possible to change

individual fuses, switches, MCCB / MCBs from the front of LDB without danger of contact with

live parts.

e) For floor mounting type LDB, adequately sized mounting channels shall be supplied and for

wall/column/structure mounting type panels suitable mounting straps shall be provided.

f) Adequate interior cabling space and suitable removable cable entry plates shall be provided for

top/bottom entry of cables through glands and or conduits. Necessary number of glands to suit

the specified cable sizes shall be provided. Cable glands shall be double compression screwed on

type and made of chrome plated brass.

g) Aluminium earth bus shall be provided throughout the panel length. Earthing terminal shall be

provided at either side of the panel to suit the OWNER’s earthing conductor.

h) All sheet steel parts shall undergo rust-proofing process which should include degreassing, de-

scaling and a recognised phosphating process. The steel works shall then be painted with two

coats of zinc chromate primer and two coats of final stove enamelled finish paint of colour. For

chemical/corrosive areas, epoxy paint shall be used.

7.1.1. BUSBARS

a) Busbars shall be of copper, unless otherwise specified.

b) Busbars shall be provided with minimum clearances in air.

c) Busbars shall be adequately sized for the continuous current rating such that the maximum

temperature of the busbars, busbar risers/droppers and contacts does not exceed 85˚ C under site

reference temperature. Busbar shall be covered with heat shrinkable coloured PVC sleeves.

d) The busbars, busbar connections and busbar supports shall have sufficient strength to withstand

thermal and electro-mechanical stresses of the fuse/ MCBs let through / cut-off current associated




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with the specified short-circuit level of the system.

e) Busbar supports shall be made from suitable insulating material such as Hylam sheets, glass

reinforced moulded plastic materials, or cast resin. Separate supports shall be provided for each

phase of the busbars. If a common support is provided for all three phases, antitracking barriers

shall be incorporated.

7.1.2. BOARD MOUNTED COMPONENTS

a) MCCB/MCBs/ELCBs shall be hand operated, air break, quick make, quick break type conforming

to applicable standards.

b) The feeders shall be provided with MCB/MCCB for overload/short circuit protection. ELCBs of

suitable rating shall be provided for earth leakage protection.

c) Switch shall have provision for locking in both fully open and closed positions. MCBs/ELCBs

shall be provided with locking facility.

7.1.3. Indicating Instruments and Meters

a) Ammeters of appropriate rating, size and type along with CTs, wherever necessary, along with

ON/OFF indicating lamps shall be provided on the front door of the distribution panel.

a) Instruments shall be of minimum 96 mm square size, shall have provision for zero adjustment

outside the cover and black numerals on white dial.

b) Ammeter/voltmeter selector switches having 3 positions and off, with stay put contacts rated 10

A shall be provided when specified.

c) Potential fuses shall be provided at the tap off point from the busbars for the voltmeters.

7.1.4. Instrument Transformers

a) Current and voltage transformers shall be of the dry type, of metering accuracy class 1.0. Unless

otherwise specified, it shall be the responsibility of the VENDOR to ensure that the VA burden

of the instrument transformer is adequate for the meters connected to it.

b) Test links shall be provided in both secondary leads of the CTs to easily carry out current and

phase angle measurement tests. Facilities shall be provided for short circuiting and grounding

the CTs at the terminal blocks.

c) Voltage transformers shall be provided with suitably rated primary and secondary fuses.

7.1.5. Internal Wiring

a) LDB and panels shall be supplied completely wired, ready for the operation. Wiring shall be

carried out with 1100 V grade, PVC insulated, stranded copper conductors. Conductors of

adequate sizes shall be used to suit the rated circuit current.

b) Engraved identification ferrules, marked to correspond with the wiring diagram shall be fitted at




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both ends of each wire.

c) All wiring shall be terminated on terminal blocks. Terminal blocks shall be one piece moulded,

650 V, of reputed make, preferably stud type for higher current ratings such that wires are

connected by cable lugs and complete with nuts and washers. Terminals shall be adequately

rated for the circuit current, the minimum rating shall be 20 A.

d) Terminals for circuits with voltage exceeding 125 V shall be shrouded.

e) Terminals shall be numbered and provided with identification strip for identification of the

circuit and additional 20% spares shall be provided.

7.1.6. Labels & Diagram Plate

a) All door mounted equipment as well as equipment mounted inside the boards/panels shall be

provided with individual labels with equipment designation/rating. Also the boards/panels shall

be provided on the front with a label engraved with the designation of the board/panel as

furnished by the OWNER.

b) Labels shall be made of non rusting metal, 3 ply lamicoid or engraved PVC.

c) Inside the door of lighting panels a circuit diagram/description shall be fixed for reference and

identification

7.1.7. RECEPTACLE UNITS

a) The indoor type receptacles units shall consist of socket outlet with associated switch, neon

indicating lamp and plug. The socket outlet and switch or MCB shall be flush mounted within a

stove enamelled/ galvanised 1.2 mm thick CRCA sheet steel enclosure with perspex/insulating

cover. The box may be recessed into or mounted on a wall as per requirements of project layouts.

b) The outdoor type receptacles shall be housed in a 2 mm thick CRCA sheet steel epoxy painted

enclosure with gasketed, hinged door having locking arrangement. The enclosure shall be with

rain canopy and removable gland plate entry from bottom. Composite receptacle with switch

modules housed in a box shall be with degree of protection IP 66.

c) The receptacle units shall be suitable for 240 V, 2 phase, 50Hz supply.

d) Convenient receptacles shall be associated with a switch/MCB of same current rating and the

receptacle shall become live only when the associated switch/MCB is in “ON” position.

e) The plugs shall be provided with cord grips to prevent strain and damage to conductors/wires at

connection and entry points.

f) The types and current ratings of receptacle units shall be as indicated in the Project layout

drawing/price schedule and they shall conform to the applicable standards.




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7.1.8. FLAMEPROOF EQUIPMENT

a) The enclosure of all flameproof equipment for use in hazardous areas where gases/vapours of

Group I, IIA, IIB are present, shall be of cast iron/cast aluminium, stove enamel finished.

Chemical corrosion resistant epoxy finish shall be provided.

b) If the enclosures are additionally required to be weather proof, neoprene gaskets shall be

provided to make the enclosure dust and weather proof providing a degree of protection of IP

55.

c) All ferrous parts, exposed to atmosphere shall be suitably plated / galvanised.

d) All internal wiring shall be connected to terminal blocks provided in terminal enclosure on

incoming side.

e) Flameproof cable gland entries shall be provided. The number of required cable entries for

junction/terminal boxes as required for branching, terminating of cables for lighting distribution

shall be provided. All unused cable entries shall be closed by flameproof plugs.

f) Flameproof receptacle unit (socket with associated switch/MCB and plug) shall have interlocking

feature such that plug cannot be inserted or taken out with switch/MCB in “ON” position.

g) Two external earthing terminals shall be provided on the enclosure to suit the OWNER’s

specified conductor. Additionally, one internal earthing terminal shall be provided in

junction/terminal boxes.

h) Adequate mounting lugs with necessary hardware shall be provided for mounting the equipment

on wall/structure.

i) These enclosures shall have inscription warning against opening the enclosure unless the circuit

is isolated. Equipment rating and ON/OFF positions of switches/MCBs shall also be designated.

j) The BIDDER shall indicate that the enclosures have been tested and certified by relevant statutory

authorities for use in hazardous areas.

7.1.9. LIGHTING WIRES

a) The wires for wiring in lighting system shall be 1100 V, 1 core, PVC insulated, unarmoured with

stranded copper conductors. The wires shall conform to the applicable standards.

b) The minimum area of conductors shall be 2.5 sq.mm for light fittings and 5A receptacles and 4

sq.mm for receptacles rated 15 A.

c) The wires shall be coded white for phase/positive of DC and black for neutral/ negative of DC.




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8. LIGHTING FIXTURES (LUMINAIRES)

8.1 TECHNICAL REQUIREMENTS

8.1.1. General

a) All the light fixtures and junction boxes along with accessories to be used in hazardous area shall be

certified by BASEEFA, UL, FM, CMRI, PESO or an Internationally Recognised Certification Agency

for the area and service in which they could be used.

b) All the light fixtures and junction boxes along with accessories shall have weatherproof enclosures

(IP-55/NEMA-4 or equivalent) and suitable for the hazard in which they are installed. The

temperature class shall be at least T3 as per IEC, unless otherwise specified.

c) The glass/ polycarbonate used shall be clear and toughened type suitable for use under conditions

involving exceptional risk of mechanical damage. The light fixtures shall have glass sealed into

retaining ring, which, in turn, shall be secured to the body.

d) The lighting fixtures shall be suitable for mounting on poles/ceilings/columns. Suitable fastening

devices such as Clamps/brackets etc required for installation, shall also be supplied.

e) All the lighting fixtures/junction boxes shall be provided with an internal earthing terminal.

f) Special tools, if required, shall also be provided.

g) All the fixture nameplates shall bear the stamp of certifying agency.

The LED fixtures shall be high efficiency, durable, rugged, with minimum lumen depreciation and

designed for ambient temperature of 41 deg C. The fixtures shall have been type tested in a NVLAP

(National Voluntary Laboratory Accreditation Program, USA) accredited laboratory

LM-79 (IESNA) for Total Luminous Flux

– Luminous Intensity Distribution

– Electrical Power Characteristics

– Luminous Efficacy (calculated)

– Color Characteristics

Minimum power factor of LED fixtures shall be 0.9. Light colour shall be white and CRI shall be

minimum 75.

8.2 Normal Light fixtures

These shall be suitable for operation on 240V, 2-Phase, 50 Hz, supply and shall be suitable for the

classified area in which they are installed. Fixture shall have double side entry suitable for armoured

copper cable complete with termination accessories. Spare plug shall be provided to block the

unused entry. The terminals shall be anti-loosening non sparking type and in adequate numbers to

terminate two cables.




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8.3 D.C. Emergency Light fixtures

Fixtures shall be suitable for use in Zone 2 area. Fixtures shall have double side entry suitable for

copper cable complete with flame proof termination accessories. Spare explosion proof plug shall be

supplied to block unused entry. The terminal block shall be adequate to terminate two cables.

8.4 Cable Glands and lugs

a) Explosion proof, double compression type, nickel/chromium plated brass cable glands shall be

provided for all Zone 2 equipment.

b) Double compression type nickel/chromium plated brass cable glands shall be provided for all Div. -

2 or Zone 2 equipment.

c) The lugs provided shall be tinned copper crimping type.

9. TESTING AND INSPECTION

Testing and inspection of light fixtures and Junction boxes shall include but not necessarily be

limited to the following:

- A visual inspection shall be made to ensure that the finishing and workmanship are up to the

mark.

- Company reserves the right to witness the final testing and inspection. Prior intimation of at

least 20 days shall be given to enable the Company to depute its representative to witness the

test.

10. PACKING AND TRANSPORT

The lighting fixtures and junction boxes along with their accessories shall be shipped to site

packed in wooden crates. They shall be wrapped with polythene sheets, before being placed in the

crates to prevent damage to finish. Crates shall have skid bottom for handling.

CREATION OF SURFACE PRODUCTION FACILITIES (OCS & GGS) AT NADUA & EAST

KHAGORIJAN


Fixtures and Distribution Board

Kavin Document No. : 17039-EK-E-SP-9009


REV. DATE DESCRIPTION BY

CHECKE

D

APPROVE

D



COMPANY:

OIL INDIA LIMITED

EPCM CONSULTANT:


LIMITED

Annexure - 8




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INDEX SHEET






5-18

TECHNICAL SPECIFICATION FOR

LIGHTING FIXTURES AND

DISTRIBUTION BOARD

30 NOV 2018




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TABLE OF CONTENTS

1. INTRODUCTION .......................................................................................................... 5

2. OBJECTIVE .................................................................................................................... 5


3.1. DEFINITIONS .................................................................................................... 6

3.2. ABBREVIATIONS .............................................................................................. 6



6. SITE CONDITION ....................................................................................................... 12

7. SCOPE .......................................................................................................................... 12

8. LIGHTING FIXTURES (LUMINAIRES) ...................................................................... 17

9. TESTING AND INSPECTION .................................................................................... 18

10. PACKING AND TRANSPORT ................................................................................... 18




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1. INTRODUCTION

OIL INDIA LIMITED (OIL) a Government of India Enterprise, proposes to construct two number of

Surface Production facilities primarily for separation of Oil, Gas & Water and processing of non-

associated & associated gas in its producing field at Nadua and East Khagorijan. The installation will

be constructed on Modular design concept with emphasis on skid mounted prefabricated facilities

minimizing construction work at site to the extent possible as per functional specifications of various

process/utility packages. Instead of permanent civil buildings, containerized offices/structures will be

preferred.

The East Khagorijan (GGS) field is located near Dibrugarh town in Assam at a location approximately

200m south (aerial distance) of LOC# at 27°32’N 95°09’E approx. elevation 121 M MSL. The field is

presently producing from 02 Nos. of wells through a QPS (Quick Production Setup). Considering the

potential of the field it is envisaged that Oil production is expected to rise to a level of 1000 KLPD

from 06 HP wells (02 wells + 04 future wells), 06 LP wells and 06 Non Associated Gas wells.

Associated Gas is expected to be around 0.1 MMSCMD. The East Khagorijan oil field also having the

huge amount of non-associated gas potential and it is expected to produce about 1 MMSCMD of non-

associated natural gas from this area. It is also expected that the field will produce about 800 KLPD of

water along with the 1000 KLPD of crude, so the plant design will be for handling 1800KLPD of total

well fluid Oil India Limited proposes to construct a Group Gathering Station at East Khagorijan to

cater to the production in that area.

Pipelines from Oil & Gas wells to the proposed plant and transfer lines for transporting Dry Crude,

treated Gas, treated water from the proposed plant to outside are not in the Project scope.

Procurement of LAND and construction of boundary wall in the land is not in the project scope and

will be done/ arranged by OIL separately.

KAVIN ENGINEERING AND SERVICES PRIVATE LIMITED is awarded a contract for Engineering

Procurement Construction Management to conceptualize / finalize the requirements needed for the

Oil Collection Station (OCS) at Nadua and Group Gathering Station (GGS) at East Khagorijan.

2. OBJECTIVE


Installation, painting, testing, inspection and commissioning of LIGHTING FIXTURE AND

LIGHTING FIXTURE DISTRIBUTION BOARD system in Oil Collection Station (OCS) at Nadua and

Group Gathering Station (GGS) at East Khagorijan. VENDOR’s scope of supply shall include the

furnishing of LIGHTING FIXTURE as complete and functional unit, as described by the requisition.




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3.1. DEFINITIONS




system in modules


The words “may”, “should” and “shall” have specific meanings as follows:

“May” is used where alternatives are equally acceptable.

“Should” is used where a provision is preferred.

“Shall” is used where a provision is mandatory.

3.2. ABBREVIATIONS











DC Direct Current












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LV Low Voltage












CODES STANDARDS





Installations










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corrosion







work


area



installation











immersion "o"


Powder Filling "q"




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installations







for transformer









system








dusts











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IS/IEC 60079-1 Equipment protection flameproof enclosures “d”

IEC 60079-5 Equipment Protection by Powder filling “q”

IEC 60079-6 Equipment Protection by Oil immersion “o”

IEC 60079-7 Equipment Protection by Increased Safety Type “e”

IEC 60079-11 Equipment Protection by Intrinsic safety “I”




construction, test and making of type of protection “n‟





losses)



30kV (Um=36kV)






Petroleum Industry












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Equipment
















Design Basis


Codes and standards















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Minimal Fire Risk






6. SITE CONDITION



“17039-EK-P-GD-1002, Site Conditions and available utilities” for details.

7. SCOPE

7.1 Lighting Distribution Board (LDB) And Lighting Panels

a) LDB and panels shall be of sheet steel enclosed and shall be fully dust and vermin proof,

providing a degree of protection of IP 52 for busbars, incoming and outgoing feeding

compartment and IP 42 for enclosure for transformer. Outdoor panels shall in addition be

completely weather-proof with a sloping canopy for protection against rain and providing a

degree of protection of IP 55. The sheet steel used shall be cold rolled and 2 mm thick.

b) All boards and panels shall be provided with hinged doors for access to equipment. Doors shall

be gasketted all round with neoprene gaskets. The lighting distribution boards shall be either

wall mounted/ stool mounted or floor mounted depending upon the dimension of DB and shall

be provided with MCCB for incomer and MCBs + ELCB for outgoing feeders. The hinged door of

incomer shall be interlocked so as to prevent opening of the door when the switch is ON and to




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prevent closing of the switch with the door not fully closed. However, a device for bypassing the

door interlock shall be provided to enable the operation of the switch with the door open, when

necessary, for examination/maintenance. For wall mounting lighting panels when provided with

ELCBs and MCBs a hinged, latched front door shall be provided with key-locking facility and a

slotted Bakelite sheet inside. Only the ELCBs/MCBs operating knobs shall project out of the

bakelite sheet slots for safe operation and neat appearance.

c) Outdoor LDBs for street lighting/area lighting shall have ON/OFF operation through real time

based timer control in addition to manual control. In this case incomer to LDB shall have

suitably rated contactor in addition to MCCB and same shall be controlled by timer contacts. The

outgoing feeders of indoor LDB used for street lighting/area lighting shall have dedicated timer

controlled contactors in addition to MCB

d) All accessible live connection/metals shall be shrouded and it shall be possible to change

individual fuses, switches, MCCB / MCBs from the front of LDB without danger of contact with

live parts.

e) For floor mounting type LDB, adequately sized mounting channels shall be supplied and for

wall/column/structure mounting type panels suitable mounting straps shall be provided.

f) Adequate interior cabling space and suitable removable cable entry plates shall be provided for

top/bottom entry of cables through glands and or conduits. Necessary number of glands to suit

the specified cable sizes shall be provided. Cable glands shall be double compression screwed on

type and made of chrome plated brass.

g) Aluminium earth bus shall be provided throughout the panel length. Earthing terminal shall be

provided at either side of the panel to suit the OWNER’s earthing conductor.

h) All sheet steel parts shall undergo rust-proofing process which should include degreassing, de-

scaling and a recognised phosphating process. The steel works shall then be painted with two

coats of zinc chromate primer and two coats of final stove enamelled finish paint of colour. For

chemical/corrosive areas, epoxy paint shall be used.

7.1.1. BUSBARS

a) Busbars shall be of copper, unless otherwise specified.

b) Busbars shall be provided with minimum clearances in air.

c) Busbars shall be adequately sized for the continuous current rating such that the maximum

temperature of the busbars, busbar risers/droppers and contacts does not exceed 85˚ C under site

reference temperature. Busbar shall be covered with heat shrinkable coloured PVC sleeves.

d) The busbars, busbar connections and busbar supports shall have sufficient strength to withstand

thermal and electro-mechanical stresses of the fuse/ MCBs let through / cut-off current associated




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with the specified short-circuit level of the system.

e) Busbar supports shall be made from suitable insulating material such as Hylam sheets, glass

reinforced moulded plastic materials, or cast resin. Separate supports shall be provided for each

phase of the busbars. If a common support is provided for all three phases, antitracking barriers

shall be incorporated.

7.1.2. BOARD MOUNTED COMPONENTS

a) MCCB/MCBs/ELCBs shall be hand operated, air break, quick make, quick break type conforming

to applicable standards.

b) The feeders shall be provided with MCB/MCCB for overload/short circuit protection. ELCBs of

suitable rating shall be provided for earth leakage protection.

c) Switch shall have provision for locking in both fully open and closed positions. MCBs/ELCBs

shall be provided with locking facility.

7.1.3. Indicating Instruments and Meters

a) Ammeters of appropriate rating, size and type along with CTs, wherever necessary, along with

ON/OFF indicating lamps shall be provided on the front door of the distribution panel.

a) Instruments shall be of minimum 96 mm square size, shall have provision for zero adjustment

outside the cover and black numerals on white dial.

b) Ammeter/voltmeter selector switches having 3 positions and off, with stay put contacts rated 10

A shall be provided when specified.

c) Potential fuses shall be provided at the tap off point from the busbars for the voltmeters.

7.1.4. Instrument Transformers

a) Current and voltage transformers shall be of the dry type, of metering accuracy class 1.0. Unless

otherwise specified, it shall be the responsibility of the VENDOR to ensure that the VA burden

of the instrument transformer is adequate for the meters connected to it.

b) Test links shall be provided in both secondary leads of the CTs to easily carry out current and

phase angle measurement tests. Facilities shall be provided for short circuiting and grounding

the CTs at the terminal blocks.

c) Voltage transformers shall be provided with suitably rated primary and secondary fuses.

7.1.5. Internal Wiring

a) LDB and panels shall be supplied completely wired, ready for the operation. Wiring shall be

carried out with 1100 V grade, PVC insulated, stranded copper conductors. Conductors of

adequate sizes shall be used to suit the rated circuit current.

b) Engraved identification ferrules, marked to correspond with the wiring diagram shall be fitted at




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both ends of each wire.

c) All wiring shall be terminated on terminal blocks. Terminal blocks shall be one piece moulded,

650 V, of reputed make, preferably stud type for higher current ratings such that wires are

connected by cable lugs and complete with nuts and washers. Terminals shall be adequately

rated for the circuit current, the minimum rating shall be 20 A.

d) Terminals for circuits with voltage exceeding 125 V shall be shrouded.

e) Terminals shall be numbered and provided with identification strip for identification of the

circuit and additional 20% spares shall be provided.

7.1.6. Labels & Diagram Plate

a) All door mounted equipment as well as equipment mounted inside the boards/panels shall be

provided with individual labels with equipment designation/rating. Also the boards/panels shall

be provided on the front with a label engraved with the designation of the board/panel as

furnished by the OWNER.

b) Labels shall be made of non rusting metal, 3 ply lamicoid or engraved PVC.

c) Inside the door of lighting panels a circuit diagram/description shall be fixed for reference and

identification

7.1.7. RECEPTACLE UNITS

a) The indoor type receptacles units shall consist of socket outlet with associated switch, neon

indicating lamp and plug. The socket outlet and switch or MCB shall be flush mounted within a

stove enamelled/ galvanised 1.2 mm thick CRCA sheet steel enclosure with perspex/insulating

cover. The box may be recessed into or mounted on a wall as per requirements of project layouts.

b) The outdoor type receptacles shall be housed in a 2 mm thick CRCA sheet steel epoxy painted

enclosure with gasketed, hinged door having locking arrangement. The enclosure shall be with

rain canopy and removable gland plate entry from bottom. Composite receptacle with switch

modules housed in a box shall be with degree of protection IP 66.

c) The receptacle units shall be suitable for 240 V, 2 phase, 50Hz supply.

d) Convenient receptacles shall be associated with a switch/MCB of same current rating and the

receptacle shall become live only when the associated switch/MCB is in “ON” position.

e) The plugs shall be provided with cord grips to prevent strain and damage to conductors/wires at

connection and entry points.

f) The types and current ratings of receptacle units shall be as indicated in the Project layout

drawing/price schedule and they shall conform to the applicable standards.




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7.1.8. FLAMEPROOF EQUIPMENT

a) The enclosure of all flameproof equipment for use in hazardous areas where gases/vapours of

Group I, IIA, IIB are present, shall be of cast iron/cast aluminium, stove enamel finished.

Chemical corrosion resistant epoxy finish shall be provided.

b) If the enclosures are additionally required to be weather proof, neoprene gaskets shall be

provided to make the enclosure dust and weather proof providing a degree of protection of IP

55.

c) All ferrous parts, exposed to atmosphere shall be suitably plated / galvanised.

d) All internal wiring shall be connected to terminal blocks provided in terminal enclosure on

incoming side.

e) Flameproof cable gland entries shall be provided. The number of required cable entries for

junction/terminal boxes as required for branching, terminating of cables for lighting distribution

shall be provided. All unused cable entries shall be closed by flameproof plugs.

f) Flameproof receptacle unit (socket with associated switch/MCB and plug) shall have interlocking

feature such that plug cannot be inserted or taken out with switch/MCB in “ON” position.

g) Two external earthing terminals shall be provided on the enclosure to suit the OWNER’s

specified conductor. Additionally, one internal earthing terminal shall be provided in

junction/terminal boxes.

h) Adequate mounting lugs with necessary hardware shall be provided for mounting the equipment

on wall/structure.

i) These enclosures shall have inscription warning against opening the enclosure unless the circuit

is isolated. Equipment rating and ON/OFF positions of switches/MCBs shall also be designated.

j) The BIDDER shall indicate that the enclosures have been tested and certified by relevant statutory

authorities for use in hazardous areas.

7.1.9. LIGHTING WIRES

a) The wires for wiring in lighting system shall be 1100 V, 1 core, PVC insulated, unarmoured with

stranded copper conductors. The wires shall conform to the applicable standards.

b) The minimum area of conductors shall be 2.5 sq.mm for light fittings and 5A receptacles and 4

sq.mm for receptacles rated 15 A.

c) The wires shall be coded white for phase/positive of DC and black for neutral/ negative of DC.




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8. LIGHTING FIXTURES (LUMINAIRES)

8.1 TECHNICAL REQUIREMENTS

8.1.1. General

a) All the light fixtures and junction boxes along with accessories to be used in hazardous area shall be

certified by BASEEFA, UL, FM, CMRI, PESO or an Internationally Recognised Certification Agency

for the area and service in which they could be used.

b) All the light fixtures and junction boxes along with accessories shall have weatherproof enclosures

(IP-55/NEMA-4 or equivalent) and suitable for the hazard in which they are installed. The

temperature class shall be at least T3 as per IEC, unless otherwise specified.

c) The glass/ polycarbonate used shall be clear and toughened type suitable for use under conditions

involving exceptional risk of mechanical damage. The light fixtures shall have glass sealed into

retaining ring, which, in turn, shall be secured to the body.

d) The lighting fixtures shall be suitable for mounting on poles/ceilings/columns. Suitable fastening

devices such as Clamps/brackets etc required for installation, shall also be supplied.

e) All the lighting fixtures/junction boxes shall be provided with an internal earthing terminal.

f) Special tools, if required, shall also be provided.

g) All the fixture nameplates shall bear the stamp of certifying agency.

The LED fixtures shall be high efficiency, durable, rugged, with minimum lumen depreciation and

designed for ambient temperature of 41 deg C. The fixtures shall have been type tested in a NVLAP

(National Voluntary Laboratory Accreditation Program, USA) accredited laboratory

LM-79 (IESNA) for Total Luminous Flux

– Luminous Intensity Distribution

– Electrical Power Characteristics

– Luminous Efficacy (calculated)

– Color Characteristics

Minimum power factor of LED fixtures shall be 0.9. Light colour shall be white and CRI shall be

minimum 75.

8.2 Normal Light fixtures

These shall be suitable for operation on 240V, 2-Phase, 50 Hz, supply and shall be suitable for the

classified area in which they are installed. Fixture shall have double side entry suitable for armoured

copper cable complete with termination accessories. Spare plug shall be provided to block the

unused entry. The terminals shall be anti-loosening non sparking type and in adequate numbers to

terminate two cables.




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8.3 D.C. Emergency Light fixtures

Fixtures shall be suitable for use in Zone 2 area. Fixtures shall have double side entry suitable for

copper cable complete with flame proof termination accessories. Spare explosion proof plug shall be

supplied to block unused entry. The terminal block shall be adequate to terminate two cables.

8.4 Cable Glands and lugs

a) Explosion proof, double compression type, nickel/chromium plated brass cable glands shall be

provided for all Zone 2 equipment.

b) Double compression type nickel/chromium plated brass cable glands shall be provided for all Div. -

2 or Zone 2 equipment.

c) The lugs provided shall be tinned copper crimping type.

9. TESTING AND INSPECTION

Testing and inspection of light fixtures and Junction boxes shall include but not necessarily be

limited to the following:

- A visual inspection shall be made to ensure that the finishing and workmanship are up to the

mark.

- Company reserves the right to witness the final testing and inspection. Prior intimation of at

least 20 days shall be given to enable the Company to depute its representative to witness the

test.

10. PACKING AND TRANSPORT

The lighting fixtures and junction boxes along with their accessories shall be shipped to site

packed in wooden crates. They shall be wrapped with polythene sheets, before being placed in the

crates to prevent damage to finish. Crates shall have skid bottom for handling.

SCHEDULE OF RATES/PRICES (SOR/P) FOR ELECTRICAL PACKAGE

Note:

1. Price quoted 1, 2, 3 and 4 above is exclusive of GST, which is extra as applicable

2. The total price(1+2+3+4) in this Schedule of Rates/Prices (SOR/P) shall be considered for evaluation of the price bid.

DESCRIPTION PRICE (INR)

1. Nadua Electrical Package "Annexure-II A" Price covering Engineering, Supply, Installation, Testing and

Commissioning including, packing/forwarding on Ex Work’s basis.

2. East Khagorijan Electrical Package "Annexure-II B" Price covering Engineering, Supply, Installation, Testing and Commissioning including, packing/forwarding on Ex Work’s basis.

3. Nadua Electrical Package Freight & Insurance Charges for delivery & Unloading at site Price

4. East Electrical Package Freight & Insurance Charges for delivery & Unloading at site Price

TOTAL (1+2+3+4)

GRAND TOTAL PRICE

Annexure - 9