5 11kv xlpe cable(1)

UGVCL-Specifications 11 kV XLPE Power

Cable

Seal & Signature of bidder

2.0: 11 KV XLPE POWER CABLE


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SPECIAL INSTRUCTIONS TO BIDDER

Please read following instructions carefully before submitting your bid. 1. All the drawings, i.e. elevation, side view, plan, cross sectional view

etc., in AutoCAD format and manuals in PDF format, for offered item shall be submitted. Also the hard copies as per specification shall be submitted.

2. The bidder shall submit Quality Assurance Plan for manufacturing

process and Field Quality Plan with the technical bid. 3. The bidder shall have to submit all the required type test reports for the

offered item. However, in the event of partial submission or reports older than specified limit, bidder must submit his confirmation for those type test report/s to be submitted in the event of an order, without affecting delivery schedule, before commencement of supply, free of cost. In absence of this confirmation, the evaluation shall be carried out accordingly as non submission of type test reports.

4. The bidder must fill up all the point of GTP for offered item/s. Instead of

indicating “refer drawing, or as per IS/IEC”, the exact value/s must be filled in.

5. All the points other than GTP, which are asked to confirm in technical

specifications must be submitted separately with the bid. 6. The bidder is required to impart training in view of manufacture,

assembly, erection, operation and maintenance for offered item, at his works, to the person/s identified by UGVCL, in the event of an order, free of cost. The cost of logistics will be bear by UGVCL.

7. Please note that the evaluation will be carried out on the strength of

content of bid only. No further correspondence will be made.

8. The bidder shall bring out all the technical deviation/s only at the

specified annexure.

9. The bidder should indicate manufacturing capacity by submitting latest

updated certificate of a Chartered Engineer (CE).


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QUALIFYING REQUIREMENT DATA (For Supply)

Bidder to satisfy all the following requirements. 1) The bidder shall be Original Equipment Manufacturer (OEM).

The offered equipment have to be designed, manufactured and tested as per relevant IS/IEC with latest amendments.

2) The minimum requirement of manufacturing capacity of offered

type, size and rating of equipment shall be 7 times tender / bid

quantity. The bidder should indicate manufacturing capacity by submitting latest updated certificate of a Chartered Engineer (CE).

3) Equipment proposed shall be of similar or higher rating and in

service for a minimum period of THREE (3) years and satisfactory performance certificate in respect of this is to be available and submitted.

4) The bidder should clearly indicate the quantity and Single Value

Contract executed during last FIVE (5) years, for the offered equipment. Bidder should have executed one single contract during last five years for the quantity equivalent to tender / bid.

The details are to be submitted in following format,

Sr.

N

o

ITEMS

SUPPLIED

TO

ORDER

REFERENCE

No. & DATE

ITEMS QUANTITY ORDER

FULLY

EXECUTE

D.

YES/NO

STATUS, IF

ORDER

UNDER

EXECUTIO

N

REMARK

5) Equipment offered shall have Type Test Certificates from

accredited laboratory (accredited based on ISO/IEC Guide 25 / 17025 or EN 45001 by the National accredition body of the country where laboratory is located), as per IEC / IS / technical specification, valid for a period of FIVE years from the date of opening of technical bid.


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TECHNICAL SPECIFICATION FOR

11 kV XLPE POWER CABLE

(CROSS LINKED POLYTHELENE DRY GAS CURED)

SECTION – I

1.1 SCOPE:

1.1.1 This Section of the Specification covers design, manufacturing, testing, packing, supply & delivery of 11 kV XLPE Dry gas cured insulated power cable for effectively earthed specification system.

1.2 STANDARDS:

1.2.1 Unless otherwise specified, the cable shall conform in all respect to IS: 7098 (Part-II)-1985 with latest amendment thereof.

1.3 CLIMATIC CONDITIONS:

1.3.1 The climatic conditions under which are cables shall operate satisfactorily are as follows:

(a) Maximum ambient temperature of air 0C : 50

(b) Minimum ambient temperature of air in shade 0C : 4

(c) Maximum daily average ambient temperature 0C

: 40

(d) Maximum yearly average ambient temperature 0C

: 30

(e) Maximum relative humidity % : 95

(f) Average number of thunder storm days per annum

: 15

(g) Average annual rainfall cm : 150

(h) Maximum wind pressure Kg/cm2 : 150

(i) Altitudes not exceeding above MSL mtrs. : 1000

(j) Maximum soil temperature at cable depth : 30


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0C

(k) Maximum soil thermal resistively 0C cm/watt : 150

1.4 PRINCIPAL PARAMETERS:

1.4.1 11 kV (E) Grade XLPE, 3-Core, power cable shall be of high

conductivity, stranded compacted, H.D. aluminum circular shaped conductor with XLPE (cross linked Poly Ethylene) Dry/Gas cured insulation provided with shielding of extruded semi-conducting materials over conductor and XLPE insulation. Each insulated core shall have copper tape screen, laid together and provided with common covering of PVC Inner Sheath (Extruded). Overall galvanized steel strip armour and PVC outer sheath shall be provided. The specification for manufacture of cable shall be conforming to IS: 7098 (Part-II) 1985 (latest edition) for 11KV (E), 3-phase, 50 Hz. Earthed systems.

1.4.2 Outer sheath shall be designed to afford high degree of mechanical protection and shall also be heat, oil, chemical and weather resistant, Common acid, alkalis and sealing solution shall not have adverse effect on material of PVC sheath.

1.4.3 Cable shall be suitable for laying in covered trenches and / or buried under-ground in outdoor.

1.4.4 Cable Parameters :

11 kV

(i) Voltage grade (Uo / U) kV : 6.35 / 11

(ii) Cores (Nos) : 3

(iii) Nominal system voltage kV : 11

(iv) Highest system voltage kV : 12

(v) System frequency Hz : 50

(vi) Variation in frequency % : G 3

(vii) (a) Maximum allowable temp. of conductor during continuous normal operation at rated full load current. 0C

(b) Maximum allowable

:

:

90

250


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11 kV

temp. under short circuit condition 0C

(viii) 1.2/50 microsecond lightning impulse withstand voltage wave value. kVp

: 75

(ix) 5 Min, Power frequency withstand voltage kV rms

: 17

(x) System earthling : Effectively earthed.

1.5 GENERAL TECHNICAL REQUIREMENTS:

1.5.1 Conductor:

The cable conductor shall be made from high conductivity stranded High Density aluminum to form compacted circular shaped conductor having resistance within limits specified in IS: 8130/1984 and any latest amendment to it.

1.5.2 Conductor shield:

The conductor having semi-conducting screen shall ensure perfectly smooth profile & avoid concentration of stress. The conductor screen shall be extruded in the same operation as the insulation. The semi-conducting polymer shall be cross linked.

1.5.3 Insulation:

The XLPE insulation shall be suitable for 11 kV system voltage and should be manufactured with Dry / Gas curing process. The bidder shall submit the description of dry / gas curing process, with the clear inclusion of equipments / parameters involved. The manufacturing process shall ensure that the insulation shall be free of voids. The insulation shall withstand mechanical and thermal stress under steady state and transient operating conditions. The extrusion method should give very smooth interface between semi-conducting screen and insulation. The insulation of the cable shall be of high standard quality generally conforming to IS: 7098 (Part – II) – 1985 and any latest amendment to it.


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1.5.4 Insulation shield:

Non-metallic semi-conducting shield shall be provided over the insulation to confine electrical field to the insulation. The insulation shield shall be extruded in the same operation as the conductor shield and the insulation by suitable extrusion process. The XLPE insulation shield shall be of tended type. The copper metallic overlapped tape shield shall be provided.

1.5.5. Filler and Inner-Sheath:

The sheath shall be suitable to withstand the site conditions and the desired temperature. It shall be of adequate thickness, consistent quality and free from all defects. The PVC sheath shall be extruded. The material of fillers and inner-sheath shall be compatible with the temperature ratings of the cable and shall have no deterious effect on any other component of the cable. Central PVC filler shall also, be provided with other peripheral PVC fillers to have proper circular section.

1.5.6 Armour:

Armouring of galvanized steel strip shall be provided. The dimensions of steel strips shall be as per latest edition of IS: 3975 – 1979.

1.5.7 Outer-Sheath:

Extruded type ST-2 PVC outer-sheath, conforming to IS: 5831-(1984) (latest edition) over armouring with suitable additives (to prevent attack by redents & termites), shall be provided.

1.5.8 Construction:

1.5.8.1 The cable shall have suitable PVC fillers laid up with insulation cores to have subsequently circular cross-section before the inner sheath is applied. The fillers shall be suitable for operating temperature of the cable.

1.5.8.2 All materials used in manufacturing of cable shall be new, unused and of finest quality. All materials should comply with


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the requirements / tests as per applicable IS / IEC specification, Indian Electricity Rules and any other statutory provision of rules & regulations.

1.5.8.3 The PVC material used in the manufacture of cable shall be of reputed manufacturer. No recycling of PVC is permitted. The purchaser reserves the right to ask for documentary evidence of the purchase of various materials, (to be used for the manufacture of cable) as per checking of quality control. Quality Assurance plans shall be submitted.

1.5.9 Current Rating:

The indicative value of continuous current carrying capacities at Maximum conductor temperature of 900 C (for design purpose by field) of the various sizes of the cables are given below:

Continuous Current Carrying

Capacity in Amp

(For 11 kV cable) Sr.

No.

Size of 3 Core

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(Sq.mm) In Ground In air

1 50 130 140

2 95 185 200

3 150 235 265

4 185 270 310

5 240 305 345

6 300 340 396

1.5.9.1 Short circuit ratings of various sizes of 3 core cable calculated

for duration of one second at maximum temperature of 2500 C, are given below:

Sr.

No.

Size of 3 Core Cable

(Sq.mm)

Conductor short circuit

rating in kA (rms)

(For 11 kV cable)

1 50 4.70

2 95 8.93

3 150 14.1


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4 185 17.4

5 240 22.6

6 300 28.2

1.5.9.2 The current rating shall be based on maximum conductor temperature of 900 with ambient site condition specified for continuous operation at the rated current.

1.5.10 Operation :

1.5.10.1 Cable shall be suitable for operation under frequency variation of +3% and voltage variation of +10% to -15% and combined frequency - voltage variation of 10% (absolute sum).

1.5.10.2 Cable shall be suitable for laying in duct or buried underground.

1.5.10.3 Cable shall have heat & moisture resistance properties. These shall be of type & design with proven record on distribution network service.

1.5.10.4 Length :

The cable shall be supplied in standard drum length of 300 mtrs. G 5% tolerance for all the sizes of cable except for 3 C x 240 mm2 and 3 C x 300 mm2 size cable. The drum length for 3 C x 240 mm2 and 3C x 300 mm2 cable shall be 200 mtrs. G 5%.

Over all tolerance in total quantity of ordered cables shall be + 2%.

1.5.10.5 Identification Mark :

(i) The cable drum shall be printed with information as per cl. 21;2 of IS and ISI Certification mark. Bidder shall submit xerox copy of valid ISI Licenses with technical bid.

(ii) For identification of cores, coloured strip of Red, Yellow and Blue colours shall be used for identification of phases. Following details of identification shall be embossed at intervals of length of one meter of cable outer sheath.

(iii) (a) Name of manufacturer (b) year of manufacture (c) voltage grade (d) Name of purchaser “UGVCL”.

1.6 TESTS:

1.6.1(A) Type Tests:


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All the cable sizes i.e. items offered should have been fully type tested as per the relevant standards at any Govt. recognized Laboratory. The bidder shall furnish three sets of type test reports along with the offer. The Type test reports shall not be older than FIVE years and shall be valid upto the expiry of validity of offer. For any change in design/type, already type tested and the design / type offered against this specification, the purchaser reserves the right to demand reputation of type tests without any extra cost. The purchaser also reserves the right to have tests carried out at his own cost by an independent agency, whenever there is a dispute regarding the quality of supply.

1.6.1(B) The following type test reports shall be furnished with the offer:

(a) Tests on conductor :

(i) Tensile test

(ii) Resistance test

(b) Tests for armouring strips / wires. :

(c) Tests for thickness of insulation and sheath. :

(d) Physical tests for insulation. :

(i) Tensile strength and elongation at break.

(ii) Ageing in air oven

(iii) Hot set

(iv) Shrinkage test

(v) Water absorption

(e) Physical tests on outer seath :

(i) Tensile strength and elongation at break.

(ii) Ageing in air oven

(iii) Shrinkage test

(iv) Hot deformation

(v) Bleeding and blooming test

(f) Partial discharge test

(g) Bending test

(h) Dielectric power factor test

i) as a function of voltage


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ii) as a function of temperature

(i) Insulation resistance test (volume resistivity)

(j) Heating cycle test

(k) Impulse withstand test

(l) High voltage test

(m) Flammability test

1.6.2 Acceptance Test:

1.6.2.1 The selection of sample pieces for acceptance test shall be from 10% drums of each lot offered for inspection or part thereof. The minimum shall be one drum.

1.6.2.2 The following acceptance tests shall be carried cut on the selected samples as per IS: 7098 (Part-II) – 1985.

(a) Annealing test (for copper)

(b) Tensile test (for aluminum)

(c) Wrapping test (for aluminum)

(d) Conductor resistance test.

(e) Test for thickness of insulation and sheath

(f) Hot set test for insulation

(g) Tensile strength and elongation at break test for insulation and sheath.

(h) Partial discharge test (for screened cables only)

(i) High voltage test for 4 hours (as per cl. No. 19.7.1)

(j) Insulation resistance (volume resistivity) test.

1.6.2.3 All the acceptance tests shall be carried out by the firm, in the presence of purchaser’s representative at their works. The firm shall give atleast 15 days’ advance notice to the purchaser to enable him to depute the engineer for witnessing the tests. The test certificates for acceptance tests witnessed by inspecting officer/ engineer shall be submitted for approval before dispatch of material.

1.6.3 Tests:


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1.6.3.1 The bidder shall have to submit, well in advance, the test certificates for the following routine test for approval prior to inspection of the materials for the complete lot offered for inspection at a time.

(a) Conductor resistance test

(b) Partial discharge test

(c) High-voltage test for 5 minutes [as per Clause 19.7.2 of IS: 7098 (Part-II) – 1985].

1.7 STAGE INSPECTION:

1.7.1 The inspection may be carried out by the purchaser at any stage of manufacture. The successful bidder shall grant free access to the purchaser’s representative at reasonable time, when the work is in progress. Inspection and acceptance, of any cables under this specification by the purchaser, shall not relieve the supplier of his obligation of supplying cable in accordance with the specification and shall not prevent subsequent rejection, if the cables are found defective.

1.7.2 The supplier shall keep the purchaser informed in advance about the program of manufacturing of cables so that arrangement can be made for inspection.

1.7.3 The purchaser reserves the right to insist for witnessing the acceptance / routing tests of the bought out items.

1.8 DOCUMENTATION:

1.8.1 The bidder shall furnish following documents along with his offer.

1.8.1.1 Sectional view, showing the General constructional feature with conductor / conductor screen / insulation / armouring / inner and outer sheath etc.

1.8.1.2 Drawing of cable drums with details of material dimension and paint etc shall be submitted

1.8.1.3 All the required type test reports for offered items tested at any Government recognized Laboratory as stated under Clause No. 1.6.1 (B).

1.8.1.4 Literature, pamphlets for the record items.

1.8.1.5 List of orders (size wise) executed during last five years for supply of specified sizes of XLPE cables, supplied to State Electricity


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Boards, Private firms & UGVCL & other Discoms etc. Along with quantity, value of the orders, year of supply and delivery schedule. List of orders executed and under execution shall be submitted separately. The annual turn over in rupees, of the firms to whom the cables have been supplied during last two years shall be stated.

1.9 PACKING AND FORWARDING:

1.9.1 The cable shall be wound on wooden drums as per IS: 10418 – 1972 and packed in drums suitable for vertical / horizontal transport, as the case may be and shall be suitable to withstand rough handling during transport and outer storage. The outer surface of the drum shall be painted with white aluminum pint. Similarly, the inside surface of drum shall have the protective layer of varnish / paint to protect it from white ants.

1.9.2 The wooden drums shall be reinforced with steel bends and strips for better protection.

1.9.3 The ends of the cable shall be sealed by means of non-hygroscopic sealing materials.

1.9.4 The following information may be stenciled on the drum with either water proof ink or oil paint:

i. Reference of IS / IEC standard.

ii. Manufacturer’s name or trademark.

iii. Type of cable and voltage grade.

iv. No. of cores.

v. Nominal cross-sectional area of conductor.

vi. Cable code.

vii. Length of cable on the drum

viii. No. of lengths on the drum (if more than one)

ix. Direction of rotation of drum (by means of an arrow)

x. Position of outer end of cable

xi. Gross weight

xii. Country of manufacture

xiii. Year of manufacture

xiv. Reference of A/T No. & date

xv. Property of UGVCL


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xvi. Name of consignee and the destination.

The drum may also be marked with ISI Certification Mark.

Over and above, name plate of aluminum of suitable size and thickness, containing all the above information, shall be fixed on the drum in addition to the painting.

1.9.5 The firm shall be responsible for any damage to the cables during transit due to improper and inadequate packing. Wherever necessary, proper arrangement for lifting, such as lifting hooks, shall be provided. Any cable found short inside the packing cases shall be supplied by the supplier, without any extra cost.

1.9.6 Each consignment shall be accompanied by a detailed packing list, containing the following information:

(a) Name of consignee

(b) Details of consignment

(c) Destination

(d) Total weight of consignment

(e) Handling and unpacking instruction

(f) Bill of materials, indicating contents of each package.

1.10 Erection Specifications for Cable laying:

1.10.1 Scope

Scope includes supply, installation, testing and commissioning of the cable system.

1.10.2 Standards:

The work shall be carried out by the best workmen with confirmation with this specification, codes of practice of Indian Standards Institution, approved drawings and instructions of Engineer in charge or authorized representative. In case of any conflict between the standards, the instructions of Engineer in charge shall be binding.

1.10.3 Cable laying:


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1.10.3.1 Cables as far as possible shall be laid in complete, uncut lengths from one termination to the other.

1.10.3.2 Cables shall be properly arranged in the trenches such that criss crossing is avoided and final take off to the switchgear is facilitated. Contractors are responsible for arrangement of cables in cable trench. Adequate sizes of GI pipe sleeves shall be utilized for end termination of cable. Pipe sleeves shall be laid at an angle of maximum 45˚C to the trench wall. In case of larger dia cables i.e. 50 mm and above adequately sized pipe with larger bend radius shall be provided for ease of drawing of cable or for replacement. In place where it is not possible, a smaller trench may be provided as approved by Engineer in charge.

1.10.3.3 Each underground cable shall be provided with identity edges of lead securely fastened every 30 m of its underground length with at least one tag at each end before the cable enters the ground. Cable markers shall be provided as directed at every 30 m and at cable joint locations.

1.10.3.4 Temporary ends if any shall be protected against dirt and moisture and prevents damage to the insulation. Proper PVC or rubber insulating tape shall be used. Use of friction type or fabric tape is not permitted. Lead sheathed cables shall be plumbed with lead alloy.

1.10.3.5 Cables shall be handled carefully during installation to prevent damage to the cables. Protective pipes shall be used as and when required as directed.

1.10.3.6 Cables laid underground in excavated cable trenches shall be as per the drawings. Trenches shall be of sufficient depth and width for laying of all cables. Cables shall be spaced properly so that heat dissipation is attained.

Minimum depth of buried cable trench shall be 900 mm for HV cables. The depth and width of the trench may vary depending on the number of layers of cables as per Indian Standards.

Cables shall be laid in trenches as shown in the drawing. Before laying the cable the bottom of trench shall be filled with sand duly leveled. The cables laid on this sand shall be covered with 150 mm sand on top of largest diameter of the cable. Sand shall be lightly pressed. Protective covering of suitable bricks/HT tiles/half round slab shall be provided before back filling the trench with soil, rammed and leveled.


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1.10.3.7 Insulation resistance test of all the cables shall be taken in presence of Engineer in charge. Defective cables shall be immediately replaced before laying of cables of other groups.

1.10.3.8 Suitable GI/HDPE/RCC hume pipes for protection as directed shall be provided as required. Cable ends shall be carefully drawing through such pipes to prevent damage to the cable. Radius at bending shall not be less than the recommended bending radius of the cables specified by the manufacturer. Standard gauge of pipe filling shall be used for sizing the pipe.

After installation and testing of cables, conduit ends shall be plugged with a suitable weatherproof plastic compound/ putty for sealing purpose as directed. No extra payments shall be allowed for the laying.

1.10.3.9 Prior approvals for cutting holes for laying cable in existing structures and foundations shall be obtained from the Engineer in charge.

1.10.3.10 At road/railway/canal crossing where cable enters pipe sleeves adequate bed of sand shall be given so that the cable do not slack and get damaged by pipe ends.

1.10.3.11 Drum number shall be recorded for each cable in cable schedule. Cables shall be routed so that they are not subjected to heat from adjacent hop pipings and vessels.

1.10.3.12 Appropriate support shall be provided to prevent sagging of cable. Distance between supports shall be maximum 450 mm for HT cable.

1.10.3.13 GL pipes laid for cable laying shall be bend with hydraulically operated bending machine.(which is to be arranged by the contractor).Bends of pipes shall be placed in such a way that they are concealed in wall, soil or structures. The open end of the pipes shall be suitably plugged with plugs supplied by the contractor at no extra cost.

1.10.3.14 Supporting angles for cables shall be suitably clamped/tied by means of nylon cords and the angles shall be painted before laying the cables. The paint shall be done with one coat of red lead paint and two coats of approved bituminous aluminium paint unless otherwise specified.

1.11 Termination:


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The 11 kV cable termination/joints shall be done by skilled and experienced jointers duly approved by the Engineer in charge. Termination including supply of jointing kit is included in the contractors scope unless specified otherwise.

Termination kits shall be suitable for termination of the cables to indoor switchgear or to weather proof cable end box of an outdoor mounted transformer an outdoor type for termination at poles. The terminating kits shall preferably be as of the following types.

PUSH ON/Heat shrink type of 3m (M seal) or Raycham make using factory molded silicone rubber insulators. For outdoor installations weather shields, shielding ends and any other accessories required should form part of the kit.

Straight through jointing kits shall be suitable for underground installation with uncontrolled backfill and possibility of flooding by water. The jointing kit shall be preferably of PUSH ON/Heat shrink type of 3m (M seal) or Raycham make.

1.11.1 Tests:

Before energizing the insulation resistance of every circuit shall be measured from phase to phase and from phase to ground with 2.5/5 kV Megger both before and after backfilling.

D.C High voltage 18 kV test shall be conducted after installation on the following and test results to be recorded as per UGVCL format in presence of Engineer in charge.

a) All cables above 1100 volts.

Type tests are to be carried out at manufacturer’s works for quality approval of termination/jointing kits. Following tests confirming to the latest IS 13573 and or IEC 502.2, 466 and VDE 0278 and C 81 specifications. The report of last three years type tests result shall be submitted for approval of the Kits. Terminations shall be kept open so that switchgears, transformers etc are not subjected to test voltage.

Tests for termination/jointing kits:

Indoor & Joint IS 13573

1) Conductor Resistance Test

2) Impact Test 3) AC High Voltage Test ( Dry )

4) Partial Discharge Test


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5) Impulse with stand test

6) AC Voltage life test with cyclic current loading



9) Thermal Short circuit test


11) Conductor Resistance Test 12) Impulse with stand test

13) D.C.High Voltage test

Out Door IS 13573


2) AC High Voltage Test ( Dry )

3) Wet Power frequency test








11) Water Tightness Test for Out door




Indoor as per VDE 0278





5) AC High Voltage Test ( Dry )

6) Tan Delta as a Function of Voltage & Capacitance.

7) Tan Delta as a Function of temperature









16) Conductor Resistance Test 17) Impulse with stand test


Out door Termination VDE 0278


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4) Impact Test 5) Wet power frequency AC High Voltage Test



8) Tan Delta as a Function of temperature



11) Partial Discharge Test 12) Tan Delta as a Function of Voltage & Capacitance.


14) Short circuit test





19) Dynamic short circuit



As per C - 81

1) Impact Test

2) Insulation Resatance Test

3) A.C High Voltage Test


5) Heat shock Test

Test after Heat shock Test

6) Insulation Resistance Test



9) Elecric Heat cycle Test

Evaluation after Electrical heat cycle Test




After Sheath Damage Test

13) Elecric Heat cycle Test

Evaluation after Electrical heat cycle Test & sheath damage




17) Examination Of Joint

1.12 TECHNICAL AND GUARANTEED PARTICULARS:


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The bidder shall furnish all Guaranteed Technical Particulars, as called for, in Appendix - I of this Specification. Particulars, which are subject to guarantee, shall be clearly identified. Offer not containing these in formations will not be considered for acceptance.

1.13 PERFORMANCE CERTIFICATE:

Bidders shall also submit performance reports for the specified size of cables supplied to other State Electricity Boards / reputed firms, with the clear indication of the period since when the cables performed satisfactory service.

1.14 LEGIBLE SUBMISSION:

Only required relevant, legible documents shall be submitted to avoid delay due to back reference.

APPENDIX – I

SCHEDULE OF GUARANTEED TECHNICAL PARTICULARS FOR 11 KV XLPE POWER

CABLE

(To be filled in and signed by the Bidder)

1.00.0 GENERAL:

1.01.0 Name of Manufacturer :

1.02.0 Place of Manufacturing :

1.03.0 Applicable standard IS/IEC :

1.04.0 Design ambient temperature 0C :

1.05.0 Cable particulars, whether, confirmed, as per clause 1.5 of Section I of Technical Specification (Yes/No)

:

Note: (Fill – up separate column for the following particulars for each

type & size of cable)


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2.00.0 CABLES:

2.01.0 Voltage grade (Uo / U) :

2.02.0 Whether suitable for neutral earthed / unearthed System

:

2.03.0 Permissible voltage & frequency variation for satisfactory operation

:

2.04.0 Nos. of cores & size :

2.05.0 Continuous current carrying capacity

:

2.05.1 For standard condition as per IS

1) In air (Amp.)

2) In ground ( “ )

3) In duct ( “ )

4) In trench ( “ )

:

:

:

:

2.05.2 For site condition

1) In air (Amp.)

2) In ground ( “ )

3) In duct ( “ )

4) In trench ( “ )

:

:

:

:

:

3.00.0 CONDUCTOR:

3.01.0 Material & its applicable IS. :

3.02.0 Shape of conductor :

3.03.0 Nominal cross section area (mm2) :

3.04.0 Number of wires per core :

3.05.0 Nominal diameter & cross section area of each wire used in each core of the conductor

:


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4.00.0 CONDUCTOR SCREENING:

4.01.0 Type :


4.03.0 Continuous working temp 0C :

4.04.0 Nominal thickness (mm) :

5.00.0 INSULATION:

5.01.0 Material & its applicable IS :

5.02.0 Thickness of insulation (mm)

a) Between cores

b) Between cores & inner sheath

:

:

5.03.0 Tolerance in thickness (percent) of insulation

:

5.04.0 Diameter of core over insulation (mm)

:

5.05.0 Specific insulation resistance at ninety (90) degree Centigrade (Ohm-Cm)

:

6.00.0 INSULATION SCREENING:


6.02.0 Thickness (mm):

1) Semi-conducting part

2) Metallic part (copper tape)

:

:

6.03.0 Whether overlapping provided for copper tape

:

6.04.0 Current carrying capacity

a) Continuous (Amps.)

b) S.C. current duration of 3-Sec. (KA)

:

:

:


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6.05.0 Diameter of core over screening (mm)

:

6.06.0 Whether insulation screen is removable without the application of heat

:

7.00.0 FILLER:


7.02.0 Whether suitable for operating temperature of Cable

: Yes/ No

7.03.0 No of fillers provided including central filler

:

8.00.0 INNER SHEATH:


8.02.0 Extruded or wrapped :

8.03.0 Thickness (mm) :

8.04.0 Diameter of cable over inner-sheath (mm)

:

9.00.0 ARMOURING:


9.02.0 Type of armouring :

9.04.0 Nos. of strips :

9.05.0 Diameter of cable over

armouring

:

9.06.0 Current carrying capacity of armour

a) on continuous basis (Amp)

b) short circuit current duration of

:

:

:


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1 sec (KA)

10.00.0 OUTER SHEATH:


10.02.0 Thickness of sheath :

10.03.0 Tolerance on thickness of sheath :

10.04.0 Over all diameter of cable (mm) :

10.05.0 Scheme for identification :

11.00.0 CABLE CONSTANT:

11.01.0 AC resistance per core at operating temp. (Ohm/KM)

:

11.02.0 DC resistance per core at 200C (Ohm/KM)

:

11.03.0 Reactance per core (Ohm/KM) :

11.04.0 Capacitance per core (Microfarad/ KM)

:

11.05.0 Insulation resistance at 270C (Ohm/ KM)

:

11.06.0 Loss tangent :

11.07.0 Dielectric constant :

11.08.0 Maxi. Cable charging current at normal operating voltage (Amp/KM)

:

12.00.0 OTHER PARAMETERS:

12.01.0 Recommended minimum braiding radius (mm)

:


Cable


12.02.0 Safe pulling force :

12.03.0 Cable weight (Kg./KM) :

13.00.0 CABLE DRUM:

13.01.0 Net weight of cable (Kg.) :

13.02.0 Drum weight (Kg.) :

13.03.0 Shipping weight (Kg.) :

13.04.0 Whether ISI Mark shall be indicated on drum (Yes/No)

:

13.05.0 Length of cable per drum (Meter) :

14.00.0 Whether details shall be embossed as stated under Cl. 1.9.4 of Technical Specification (Yes/No)

:

15.00.0 Whether type test reports submitted, as stated under Cl. 1.6.1 of Technical Specification (Yes/ No)

:

16.00.0 Whether drawings submitted as specified under Cl. 1.8.1 of Technical Specification. (Yes/ No)

:

17.00.0 Whether unpriced schedule of offered items submitted with Technical offer. (Yes/ No)

: .

Signature of the Bidder: __________ Name: _______________________ Designation: ___________________ Date: _____________


Cable


Authorised common rubber Stamp / seal of the bidder: _________

GUARANTEED TECHNICAL PARTICULARS PUSH ON OUT DOOR TERMINATION ON 11KV (E) XLPE CABLE

Sr.

No. Particulars

Unit

Guaranteed values.

1.0 MANUFACTURER 2.0 APPLICABLE STANDARDS As per IS:13573 3.0 GUARANTEED PARTICULARS

For the nominal(phase to phase) System voltages Maximum system voltage

KV

KV

11KV

12KV

3.1 A.C. withstand voltage Dry (ph/ground)

KV Mins

35 KV 1 Min.


Cable


Time duration A.C. withstand voltage

Wet(ph/ground) Time duration

KV Mins

28 KV 1 Min.

3.2 Partial Discharge at 2 Uo pC <5pC 3.3 Impulse withstand,1.2/50/Us kV 75KV 3.4 Load cycle Test

a)Each Cycle-Heating Duration Temperature Cooling Duration b)Number of Cycles c)Continuous phase to ground

Voltage Withstand

Hrs 0C Hrs.

kV

5 10 3 117 2.5Uo

Leak Tightness 9 Cycles. 3.5 Thermal Withstand Short circuit

current 1Sec. ka As per IS:13573

3.6 Dynamic short circuit Withstand

Ka peak

2.55 x Is As per IS:13573

3.7 DC Voltage kV 48Kv for 30Mins 4.0 KIT PARTICULARS 4.1 Material of the tubing/molded

parts EPDM rubber

4.2 Method of stress control Pre molded stress cone. 4.3 Method of environmental seal EPDM rubber. 4.4 List of items included in the Kit

a)For Terminations b)Allowable kit storage temperature c)Kit shelf life

0C Years

Yes Normal Ambient Temperature More then 5 Years

5.0 Cable Termination Instruction Manuals

Yes/No Yes

GUARANTEED TECHNICAL PARTICULARS PUSH ON INDOOR TERMINATION ON 11KV (E) XLPE CABLE

Sr.

No. Particulars

Unit

Guaranteed values.



Cable



KV

KV

11KV

12KV

3.1 A.C. withstand voltage Dry (ph/ground) Time duration

KV Mins

35 KV 1 Min

3.2 Partial Discharge at 2 Vo pC <5pC 3.3 Impulse withstand,1.2/50/Us kV 75KV 3.4 Load cycle Test


Voltage Withstand

Hrs 0C Hrs.

kV

5 100 3 126 2.5Uo

3.5 Thermal Withstand Short circuit current 1Sec.

ka As per IS:13573


Ka peak


3.7 DC Voltage kV 48Kv for 30Mins. 4.0 KIT PARTICULARS 4.1 Material of the tubing/molded

parts EPDM rubber.

4.2 Method of stress control Pre molded stress cone. 4.3 Method of environmental seal EPDM rubber. 4.4 List of items included in the Kit


0C Years

Yes. Normal Ambient Temperature. More then 5 Years.


Yes/No Yes

GUARANTEED TECHNICAL PARTICULARS HEAT SHRINK OUT DOOR TERMINATION ON 11KV (E) XLPE CABLE


Cable


Sr.

No

Particulars

Unit

Guaranteed values.

1.0 MANUFACTURER

2.0 APPLICABLE STANDARDS As per IS:13573 3.0 GUARANTEED PARTICULARS

3.1 For the nominal(phase to phase) System voltages

Maximum system voltage

KV

KV

11KV 12KV


KV Mins

35 KV 1 Min

A.C. withstand voltage Wet(ph/ground) Time duration

KV Mins

28 KV 1 Min



Voltage Withstand

Hrs 0C Hrs.

kV

5 100 3 117 2.5Uo

3.6 Leak Tightness 9 Cycles. 3.7 Thermal Withstand Short

circuit current 1Sec. ka As per IS:13573


Ka peak


3.9 DC Voltage kV 48Kv for 30Mins. 4.0 KIT PARTICULARS

4.1 Material of the tubing/molded parts

Polyolefin

4.2 Method of stress control High permittivity Material. 4.3 Method of environmental

seal H.S. Anti-tracking Tubes.

4.4 Allowable Kit storage Temperature

0C Normal Ambient Temperature.

4.5 Shelf life of H.S components Years More then 5 Years. 5.0 Cable Termination Instruction Yes/No Yes


Cable


Manuals

GUARANTEED TECHNICAL PARTICULARS HEAT SHRINK IN DOOR TERMINATION ON 11KV (E) XLPE CABLE

Sr.

No

Particulars

Unit

Guaranteed values.

1.0 MANUFACTURER

2.0 APPLICABLE STANDARDS As per IS:13573 3.0 GUARANTEED PARTICULARS

3.1 For the nominal(phase to phase) System voltages

Maximum system voltage

KV

KV

11KV 12KV


KV Mins

35 KV 1 Min



Voltage Withstand

Hrs 0C Hrs.

kV

5 100 3 126 2.5Uo

3.6 Thermal Withstand Short circuit current 1Sec.

ka As per IS:13573


Ka peak


3.8 DC Voltage kV 48Kv for 30Mins. 4.0 KIT PARTICULARS

4.1 Material of the tubing/molded parts

Polyolefin

4.2 Method of stress control High permittivity Material. 4.3 Method of environmental

seal H.S. Anti-tracking Tubes.


Cable


4.4 Allowable Kit storage Temperature

0C Normal Ambient Temperature.

4.5 Shelf life of H.S. components Years More then 5 Years. 5.0 Cable Termination Instruction

Manuals Yes/No Yes

GUARANTEED TECHNICAL PARTICULARS HEAT SHRINK STRAIGHT THROUGH JOINT ON 11KV (E) XLPE CABLE

Sr.

No. Particulars

Unit

Guaranteed values.



KV

KV

11KV

12KV


KV Mins

35 KV 1 Min.

A.C. withstand voltage Wet(ph/ground) Time duration

KV Mins

28 KV 1 Min.

3.2 Partial Discharge at 2 Uo pC <5pC 3.3 Impulse withstand,1.2/50/Us kV 75KV 3.4 Load cycle Test


Voltage Withstand

Hrs 0C Hrs.

kV

5 100 3 63 2.5Uo

Water tightness test KV 60Nos.at 2.5 Uo. as per above cycles.

3.5 Thermal Withstand Short circuit ka As per IS:13573


Cable


current 1Sec. 3.6 Dynamic short circuit

Withstand Ka

peak 2.55 x Is As per IS:13573

3.7 DC Voltage kV 48Kv for 30Mins 4.0 KIT PARTICULARS 4.1 Material of the tubing/molded

parts Polyolefin.

4.2 Method of stress control High permittivity Material. 4.3 Method of environmental seal H.S. Black Insulating Tubes. 4.4 List of items included in the Kit


Yes/No

0C Years

Yes Normal Ambient Temperature More then 5 Years


Yes/No Yes

5 11kv xlpe cable(1)

Documents

heat shrink

isi certification

type test

high voltage

guaranteed

insulation

maximum conductor

test certificates