developers guide (electricity) - uk power solutions · 2019. 5. 2. · uk power solutions aim to...

DEVELOPERS GUIDE (ELECTRICITY)

Head Office: UK Power Solutions Ltd, River View House,

Bonds Mill Estate, Stonehouse, Gloucestershire, GL10 3RF

Company Reg No. 06256696 VAT Reg No. 910 4276 54

CONFIDENTIAL - Revision 1.1

When printed this document becomes uncontrolled. Please ensure you refer to the latest version.

All content and graphics are Copyright © 2017 UK Power Solutions Ltd. All rights reserved.

Reproduction in whole or in part in any form or medium without express permission from UKPS is prohibited

Introduction & Process

- Responsibilities

- Requesting Work

- Materials

- Examples of Service Crossings and Connections

- Positioning of services in the highway (NJUG)

- Outdoor Meter Box Locations

- Indoor Meter Box Locations

Cable Installation

- Service Cable

- Low Voltage mains cable

- High Voltage (11kV) Mains Cable

Plot Connection Request

Notes

Contacts

3

4

4

5

6

7

8

9

10

10

11

12

13

14

15

Contents

CONFIDENTIAL CONFIDENTIALRevision 1.1 Revision 1.13 PBCONFIDENTIAL Revision 1.1 3

UK Power Solutions aim to provide the highest standard of customer service throughout the entire connection process providing the customer with a single point of contact at every stage of the project.

We will be installing the electricity distribution infrastructure to ensure the new supplies you have requested are energised to the required metering points. Once this infrastructure has been energised it will then become fully owned and maintained by the adopting Network Operator.

An approved design will be provided for you which will have been approved by the adopting Network Operator, it is essential that the elements of the installation that you are responsible for are installed to the exact specification required on the design, failure to adhere to this could result in the energisation of the new infrastructure being delayed and/or incurring additional costs, something we are very keen to avoid.

Finally, if there is any part of this project that you are unsure, unhappy or really pleased about, please don’t hesitate to contact us, in addition we will also provide you with details of our Area Construction Manager should you wish to escalate any queries.

Introduction & Process

CONFIDENTIAL CONFIDENTIALRevision 1.1 Revision 1.14 PB

The below table clearly defines who is responsible for the various tasks required for the installation of the electricity services on your site, these may vary slightly if specifically requested at quotation stage, please check your proposal to confirm or call your Project Manager to discuss.

Tasks Customer UKPS

Request call off of service connections from UKPS

Provision of MPAN numbers

Excavation and reinstatement of onsite cable trenches

Supply and installation of onsite ducting and draw cord

Supply and installation of onsite cable warning tape

Supply and installation of external meterbox and hockey stick

Excavation of onsite joint bays

Supply and installation of electrical cabling

Arrange for meters to be fitted

Once the main supply has been energised onto your site you will be able to call off any remaining mains cable installation and service connections in line with your requirements.

Lead times for calling off work are:• LV mains cable installation – 20 working days• LV service connections – 15 working days

LV mains cable installation should be requested through your Dedicated Project Manager

LV Service connections should be requested via the UKPS plot Call Off team by simply filling out the Service “Connection Request Form” (Page 14) and either faxing it to 0845 2577 106 or emailing the form to [email protected]. Please be aware that the below requirements need to have been met prior to our site attendance to ensure the works can be completed without aborted visits.

• Premises are watertight and lockable• Meter boxes/positions are installed and complete• Final Ground Lines and Levels are determinable• Jointing excavations are suitable and safe• Scaffolding has been removed from our work area• Ducting/containment has been installed to the

correct specification and position

Responsibilities Requesting works


It is very important that only the correct specification of materials are used, below is a list of the items that the customer would normally be required to supply, if in doubt always ask your Project Manager prior to procurement:

Material Description Material Use Colour/Size Manufacturer Applicable standard

Electric Meter Box Recessed

Housing of cutout and meter

White

H595 x W409 x D210mm

MCL Composites ENATS 12-24 Class 3

38mm Hockey StickProtection of service cable rising into meter box

White

38mm widthMCL Composites

BS8567:2012

ESI 12-3

38mm smooth electrical Polyduct

Ducting of service cables

Black

38mm IDPolypipe ENATS 12-24 Class 3

125mm twin walled ridgiduct electricity embossed on two diametrically opposing sides

Ducting of Low Voltage and High Voltage mains cable

Black

125mm IDPolypipe ENATS 12-24 Class 2

Materials


Examples of Service Crossings and Connections:

Note ~ the above examples demonstrate the requirement for all service cables to take the most direct route from the property towards the point of connection with the mains cable. The service cable must not cross any other land other than that of the property it is supplying.

Acceptable Electricity Service Routes Unacceptable Electricity Service Routes

Plot 1

Footpath

Property Boundary

Acceptable Electricity Service Routes

50m

m D

uct

One measurementpoint for As Laid

LV Cable

50m

m D

uct

Plot 2

1:50

Property Boundary

50m

m D

uct

50mm D

uct

Plot 1 Plot 2

FootpathLV Cable

Unacceptable Electricity Service Routes

1:50

38m

m D

uct

38m

m D

uct

38m

m D

uct

38mm D

uct


NJUG Guidelines on the Positioning of Underground Apparatus for New Development Site.

Recommended Positioning of Utility Apparatus in a 2 Metre Footway.

Note ~ the same positioning should apply in the carriageway / service strip (if safe and practical to do so) where a development has no footway(s) available for services and / or the boundary of the property is on the carriageway (please refer to minimum depths in carriageways). For further advice please contact the asset owner.

Positioning of services in the highway (NJUG):


Outdoor Meter Box locations:

Outdoor meter boxes must be mounted into or onto an external wall located at the front or side elevation of a property. Meter boxes must not be positioned behind a gate or fence as this could restrict access.

Meter boxes must be installed at:

• Maximum height of 1800mm from ground level to the top of the box - to enable access without ladders of steps.

• Minimum height of 450mm from ground level to the bottom of the box – to reduce the risk of water entering the box in the event of flooding or fire-fighting activities.

Outdoor boxes must not be installed:

• Inside a property

• At the rear of a property

• At the side of the property behind a fence or gate

• Inside a dustbin, coal or refuse store.

• Inside a garage or porch

• Underneath a window unless the minimum installation height of 450mm is achievable.

Single phase service cables must be installed vertically up the surface of the wall and enter the meter box from the underside. The cable must be protected by a cable guard or contained within a pipe.

1800

mm

Max

450m

m M

in

535

min

450(

min

) - 1

070

(max

)

60

150365 min

F/L

450

Cleats

38mm Service Duct

Externallyfitted hockeystick

Outdoor boxes should be installed at:

The customer's consumer unit must be located so that the conductors from theelectricity cut out are no longer than 3m, in order to comply with BS7671regulations. If the unit exceeds this requirement then suitable switch fusedprotection must be installed. This protective device must be installed within the 3mlimit.

Note: Standard detail only.

Cupboard size andlocations may varyfrom plot to plot.

Unimpeded access tobe provided for cut outwith 1.5m fall backdistance

The indoor positionshall not puttradesmen oroccupiers at risk ofcoming into contactwith live equipmentduring installation andsubsequent buildingwork and occupiers atrisk thereafter.

The service equipmentmust be installed on abrick or block workwall. This shouldalways be an externalwall or immediatelyadjacent to an externalwall. If a suitable brickof block work wall isnot available, a steelsheet at least 1mmthick and earthedshould be fitted behindthe service cable, cutout and meter.

M

DN

O O

nly

℄ ℄SERIES 6

45726

SERIES 6

550mm

F/L

Minimum Space Required550w x 300d

Cable ductedthrough floor slab

Ø38mm Int.Dia Duct

1:20


Indoor Meters Cannot be installed:

• Inside a dustbin, coal or refuse store.

• In a kitchen or Bathroom.

• Above doorways.

• On partition walls made of plasterboard, drywall or similar material (without steel plate).

• Under stairs where headroom is less than 2m

• In any location which is in breach of the current edition of BS7671 “Requirements for Electrical Installations”.

• The design of the indoor position does not put tradesmen or occupiers at risk of coming into contact with live equipment during installation and subsequent building work.

• The service cable must be ducted and routed inside or under the building by the shortest and most direct route possible. The internal end of the duct must be sealed immediately after the cable has been installed.

• If a suitable brick or block work wall is not available, then a steel sheet at least 1mm thick and earthed should be fixed behind the cut out and meter by UKPS.

• Electric services must have a minimum spacing of 300mm from other services.

• Where a meter is installed in a cupboard in a main access or egress route, then this shall be designated as a “protected area” and as such shall be 30 minute fire rated.

• Unimpeded access to be provided for cut out with 1.0m fall back distance from cut out to opposite wall.

Indoor Meter Box locations:

Indoor meters are accepted as long as the following conditions are met:

Standard fibreglass outdoor meter boxes are not suitable for indoors as they do not comply with the appropriate British standards for fire resistance and fume emissions. Meter boxes must fully comply with the fire regulations and any local by-laws.

If a suitable brick of block work wall is not available, a steel sheet at least 1mm thick and earthed should be fitted behind the service cable, cut out and meter.

1800

mm

Max

450m

m M

in

535

min

450(

min

) - 1

070

(max

)

60

150365 min

F/L

450

Cleats

38mm Service Duct


Outdoor boxes should be installed at a:

The customer's consumer unit must be located so that the conductors from theelectricity cut out are no longer than 3, in order to comply with BS7671 regulations.If the unit exceeds this requirement then suitable switch fused protection must beinstalled. This protective devise must be installed within the 3m limit.






M

DN

O O

nly

℄ ℄SERIES 6

45726

SERIES 6

550mm

F/L



Ø38mm Int.Dia Duct

1800

mm

Max

450m

m M

in

535

min

450(

min

) - 1

070

(max

)

60

150365 min

F/L

450

Cleats

38mm Service Duct


Outdoor boxes should be installed at a:

The customer's consumer unit must be located so that the conductors from theelectricity cut out are no longer than 3, in order to comply with BS7671 regulations.If the unit exceeds this requirement then suitable switch fused protection must beinstalled. This protective devise must be installed within the 3m limit.






M

DN

O O

nly

℄ ℄SERIES 6

45726

SERIES 6

550mm

F/L



Ø38mm Int.Dia Duct


UKPS are responsible for the supply, and installation of all electrical cables on site in trenches that are to be pre-excavated by the client (unless otherwise stated). The following minimum depths shall be adhered to when carrying out trench excavations in advance of a cable installation.

Service Cable:

Service Cable

Installation Depth of duct / top of cable

Footpath 450mm

Roadway / Crossing 600mm

Verges 450mm

Agricultural 1000mm

Cable Installation

Floor Level

Leave ductplugged

Ground Level

Extend duct clearof foundations

450mm (18")minimum slowradius bend

Extend duct to the back ofthe footpath with draw cord

Duct normally requiredto be 450mm (18")below ground level

Cable entry into building

Bottom of trench must be level and freefrom sharp stones

Footway

100

450

Roadway/Crossing

ElectricMarkerTape

Sand/Finefill

100 60

0

38mm Int ØPolyduct, Service Duct

1:20


Low Voltage Mains Cable:

Low Voltage Cable


Footpath 450mm


Verges 450mm

Agricultural 1000mm

450

Footway

200

600

Road Crossing

600

Roadway

1000

Agricultural

Spare duct forroad crossing

Bottom of trench mustbe level and free from

sharp stones

25

Bottom of trenchmust be level andfree from sharp

stones

ElectricMarkerTape

Sand/Finefill

ElectricMarkerTape

Sand/Finefill

125 Int Ø 125 Int Ø

125 Int Ø

1:20


High Voltage (11kV) Mains Cable:

Footway

600

300

Roadway

750

750

300300

Road Crossing

1000

Agricultural

Spare duct forroad crossing


stones


stones

Sand/Finefill

Sand/Finefill

ElectricMarkerTape Electric

MarkerTape

125 Int Ø 125 Int Ø

125 Int Ø

1:20

Low Voltage Cable


Footpath 600mm


Verges 600mm

Agricultural 1000mm


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CONFIDENTIAL Revision 1.0 14

Notes:


Contacts

Project Manager:

Mobile:

Office:

Email:

Connections Co-ordinator:

Mobile:

Office:

Email:

Regional Construction Manager:

Mobile:

Office:

Email:

Electricity Network Owner:

Emergency Number:

Tel: 0845 257 7105 | Fax: 0845 257 7106 | Email: [email protected]

www.ukpowersolutions.co.ukRegistered in England & Wales. Registered Address: UK Power Solutions Ltd Head Office,

River View House, Bonds Mill Estate, Stonehouse, GL10 3RF

UK Power Solutions Ltd London Office, 4th Floor West World, West Gate, Ealing, London, W5 1DT

Company Reg No. 06256696 VAT Reg No. 910 4276 54

All content and graphics are Copyright © 2017 UK Power Solutions Ltd. All rights reserved.

Reproduction in whole or in part in any form or medium without express permission from UKPS is prohibited

developers guide (electricity) - uk power solutions · 2019. 5. 2. · uk power solutions aim to...

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