ES281
COMPANY-SPECIFIC APPENDICES TO ENA ENGINEERING RECOMMENDATION
G81
PART 2
Materials Specification for New Low Voltage Installations for Housing Developments
1.
SCOPE
This appendix to ENA ER G81 Part 2 covers the materials specification for new low voltage
services and mains, and associated high voltage to low voltage substations for the purpose of
connecting housing developments to the electricity distribution network of Electricity North West
Limited (Electricity North West). (This Part 2 of ES281 provides the information, specific to
Electricity North West, required by Appendix A of Part 2 of ENA ER G81.)
2.
GENERAL
2.1
This document provides details of Electricity North West’s approved range of cables, plant,
equipment and auxiliary items used to construct distribution assets for connection to
Electricity North West’s distribution network. Only equipment approved by Electricity
North West and listed in this document shall be used to construct electricity networks,
substations and services for adoption by Electricity North West in its distribution area.
2.2
For all new connections work, the approved installer (ICP) shall provide the Engineer with
a full list of equipment to be used. The Engineer will then aim to formally accept or reject
the proposal within 10 working days.
2.3
Where Electricity North West’s requirements are not specified in this document, the
approved installer shall liaise with the Engineer, to gain approval from Electricity North
West’s Policy and Implementation Manager for its suggested equipment, prior to
purchasing the equipment.
2.4
This document will be updated on a regular basis when new equipment is approved by the
Electricity North West Policy and Implementation Manager. Further details will also be
added as requirements for further information on the range of equipment used is identified.
2.5
This specification provides a description of the materials; the relevant Electricity North
West specifications; agreed suppliers for the materials and useful comments on the
materials’ use. These details are tabulated below in Sections 3, 4, 5 and 6.
ES281Part2 mft.doc
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© 2010 Electricity North West Limited.
Part 2
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3.
UNDERGROUND HIGH VOLTAGE EQUIPMENT INCLUDING CABLES, JOINTS &
TERMINATIONS
3.1
High Voltage Cables
Electricity
North West
Specification
Item
95mm2 Aluminium
XLPE, Single Core in
Triplex Formation
300mm2 Aluminium
XLPE, Single Core in
Triplex Formation
ES281Part2 mft.doc
Issue 1
ES400C9
ES400C9
Agreed
Supplier(s)
NKT,
Asnaes,
Denmark
Prysmian,
Wrexham,
Wales.
Quintas &
Quintas,
Conductores,
Portugal
Comments
Cable of 95mm2 cross-section may
be used only for the following:
a connection from switchgear to a
local transformer;
a connection to or from an overhead
line with equal or less current rating;
a diversion, less than 100m long, of
a cable with equal or less current
rating.
02/04/08
DCB ES281
© 2010 Electricity North West Limited.
Part 2
Page 2 of 18
26/08/09
3.2
High Voltage Cable Joints
Electricity
North West
Specification
Item
95 Triplex Straight
Joint
185 Triplex Straight
Joint
300 Triplex Straight
Joint
95 Triplex Breech Joint
Agreed
Supplier(s)
ES400J2
For Joints:
&
Prysmian,
Wrexham,
Wales.
CP411 Part 2
High Voltage
DKN
Powerline,
Padiham,
Lancashire,
England
185 Triplex Breech
Joint
Comments
Note that the named suppliers do not
supply all types of joints and
terminations. Before purchasing
jointing materials, ES400 J2
“Specification for 11kV/6.6kV
Joints” and the relevant section in
CP411 Part 2 “Mains Practice Up
To & Including 132 kV - 6.6/11 kV
Cable Jointing” Section 6 - Jointing
Materials, Kit Contents and
Application Charts shall be
consulted.
300 Triplex Breech
Joint
95 Triplex Bottle End
For
Terminations
:
185 Triplex Bottle End
300 Triplex Bottle End
95 XLPE, Cold
Applied Termination
185 XLPE, Cold
Applied Termination
Prysmian,
Wrexham,
Wales
Note: Refer to sub-section 3.3 Jointing Accessories - below, for
details of Resins, PVC tape, binding
wires, etc.
DKN
Powerline,
Padiham,
Lancashire,
England
300 XLPE, Cold
Applied Termination
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3.3
Jointing Accessories
Electricity
North West
Specification
Item
Agreed
Supplier(s)
LV Joint Shells
ES400J3
B&H
Cold Poor Resin
Compound
ES400R10
WT Henley,
Gravesend,
Kent
Binding Wire
ES400W1
MSS
Products Ltd
Cotton Tape
ES400T3
3M
PVC Tape
ES400T5
3M
Copper bonded Steel
Earth Rods Extensible
Type
ENA TS 4394
W J Furse
Comments
Consult CP411 Part 1 “Mains
Practice Up To & Including 1000
Volts - Cable Jointing” Module 30.
Earth Rod Coupling
Steel Driving Stud
Earth Rod Connector
Saddle Clamp Type or
“U” Bolted (Bulldog
Grip) Type
Earth Wire, (6491X)
16mm2 - 95mm2,
stranded copper, green
and yellow insulated
ES281Part2 mft.doc
Issue 1
BS 6004
Consult CP411 Part 1 “Mains
Practice Up To & Including 1000
Volts - Cable Jointing” Module 30.
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4.
UNDERGROUND LOW VOLTAGE EQUIPMENT INCLUDING CABLES, JOINTS,
LINK BOXES & TERMINATIONS
4.1
Low Voltage Cables
Electricity
North West
Specification
Item
3 core, 95mm2
Aluminium cored,
XLPE insulated,
copper neutral
(Waveform)
ES400C11
Agreed
Supplier(s)
Prysmian,
Wrexham,
Wales
NKT,
Asnaesn,
Denmark
3 core, 185mm2
Aluminium cored,
XLPE insulated,
copper neutral
(Waveform)
3 core, 300mm2
Aluminium cored,
XLPE insulated,
copper neutral
(Waveform)
3 and 4 core, 95mm2
Low Smoke Zero
Halogen Aluminium
cored, XLPE insulated,
copper neutral
(Waveform)
Comments
Minimum size of mains cable to be
installed on to Electricity North
West’s low voltage distribution
network.
Minimum size of cable to be used
on interconnecting mains
To be used for tailed out LV fuse
ways not required for immediate
use, and elsewhere as required.
ES400C11
Ericsson,
Falun,
Sweden
To be used exclusively for internal
building installations, but not
elsewhere.
3 and 4 core, 185mm2
Low Smoke Zero
Halogen Aluminium
cored, XLPE
insulated, copper
neutral (Waveform)
3 and 4 core, 300mm2
Low Smoke Zero
Halogen Aluminium
cored, XLPE
insulated, copper
neutral (Waveform)
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4.2
Low Voltage Cable Joints
Item
3 core, 95 Waveform
Straight Joint
3 core, 185 Waveform
Straight Joint
3 core, 300 Waveform
Straight Joint
3 core, 95 Waveform
Breech Joint
3 core, 185 Waveform
Breech Joint
Electricity
North West
Specification
Agreed
Supplier(s)
ES400C21 (Mechanical
Connectors)
See COP 411
pt 1
Low Voltage Joints consist of
various manufacturers items.
Joint Shells:
ES400J3
(Joint Shells)
ES400R10 (Resin
Compound)
CP411 - LV
Section 5
3 core, 300 Waveform
Breech Joint
B&H
Shear Off
Lugs:
B&H
Earth
Bonding
Kits:
Tyco
(Witham) Ltd
3 core, 95 Waveform
Bottle End
Cotton tape:
3M
3 core, 185 Waveform
Bottle End
Cable Ties:
300 Waveform Bottle
End
4.3
Comments
Before purchasing jointing
materials, both ES400 J3 “Low
Voltage Joint shells” and the
relevant section in Electricity North
West’s Code of Practice 411 Part 1
“Mains Practice Up To & Including
132 kV - Low Voltage Cable
Jointing” Section 5 - Jointing
Materials, Kit Contents and
Application Charts shall be
consulted.
Note: Refer to sub-section 3.3 Jointing Accessories - above, for
details of Resins, PVC tape, binding
wires, etc.
Hellerman
Tyton Ltd
Underground Link Boxes
Electricity
North West
Specification
Item
2 way Link Box
ES281Part2 mft.doc
Issue 1
ES400L5
Agreed
Supplier(s)
Tyco
Electronics,
Wytham,
Essex
Comments
Note : TYCO Mark 1 Only
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© 2010 Electricity North West Limited.
Part 2
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4.4
Low Voltage Underground Service Cables
Electricity
North West
Specification
Item
3 core, 25mm2
Aluminium cored,
XLPE insulated,
copper neutral
2
4mm Copper cored,
single core XLPE
insulated, copper
neutral
Agreed
Supplier(s)
ES400C8
B3 / Wessel,
Dublin,
Ireland
CP411 LV
Section 5
Prysmian,
Wrexham,
Wales
Erisson,
Falun,
Sweden
Comments
To be used only for street lighting
services not exceeding 25A and 15m
route length from main’s service
joint. Otherwise see ES 211”
Design Specification for Third Party
New Connections of Street
Electrical Furniture” for alternative
arrangements.
35mm2 Aluminium,
single cored, XLPE
insulated, copper
neutral
4.5
Low Voltage Underground Service Joints
Electricity
North West
Specification
Agreed
Supplier(s)
Comments
Service to Mains
Breech Joints (up to 4
service connections)
ES400C21 (Mechanical
Connectors)
See COP 411
pt 1
Service to Service
Straight Joint
ES400J3 (Joint Shell)
Service Bottle End
ES400R10 (Resin
Compound)
When purchasing jointing materials,
both Electricity North West’s
Electricity Specification 400J3
“Low Voltage Joint shells” and the
relevant section in Electricity North
West’s Code of Practice 411 LV
“Mains Practice Up To & Including
132 kV - Low Voltage Cable
Jointing” Section 5 - Jointing
Materials, Kit Contents and
Application Charts shall be
consulted.
Item
Joint Shells:
B&H
Shear Off
Lugs:
B&H
Earth
Bonding
Kits:
Tyco
(Witham) Ltd
Cotton tape:
3M
Note: Refer to sub-section 3.3 Jointing Accessories - above, for
details of Resins, PVC tape, binding
wires, etc.
Cable Ties:
Hellerman
Tyton Ltd
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4.6
Ducts, Service Pipes & Meter Cabinets
Electricity
North West
Specification
Item
Red, Smooth Walled,
117mm Internal
Diameter
ES400D4
Agreed
Supplier(s)
Emtelle,
Hawick,
Scotland
Comments
Approved Elbows & Bends are
within specification.
Red, Smooth Walled,
150mm Internal
Diameter
Tyco
Electronics
Duct Sealing Bags
Marker Tape
ES400T2
Boddingtons,
Great
Dunmow,
Essex
Cable Tiles
ES400T8
Boddingtons,
Great
Dunmow,
Essex
38mm Service Duct
ES400D4
Emtelle,
Hawick,
Scotland
Service Entry Pipe
(Hockey Stick)
38mm internal
diameter
Rayflate Duct Sealing System
50mm Service Duct
Outdoor Meter
Cupboard
ENA TS 12-3 Mitras
Composite
UK Ltd
Hepworth
Ltd,
Padiham, UK
Meter Board
BS EN 312-1
Chip board, minimum
18mm thick
ES281Part2 mft.doc
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Wooton &
Co Ltd
Required for:
i) Small outdoor meter cupboard
(505mm × 340mm)
ii) Medium outdoor meter
cupboard, or internal meter
position, single phase
(575mm × 375mm)
iii) Large outdoor meter cupboard,
or internal meter position, polyphase (650mm × 460mm)
iv) Narrow outdoor meter cupboard
(740mm × 220mm)
02/04/08
DCB ES281
© 2010 Electricity North West Limited.
Part 2
Page 8 of 18
4.7
Low Voltage Underground Single Service Terminations
Electricity
North West
Specification
Item
25A Single Phase
Street Lighting Cut Out
100A Single Phase Cut
Out
100A 3 Phase Street
Lighting Cut Out
ES400C6
ES332
ES400C5
Agreed
Supplier(s)
Comments
Lucy
Switchgear,
Oxford, England
SLF 25A SNE and CNE
Tofco Ltd,
Ponteland,
Northumberland
ZA F144/DP/E/ABS
Lucy
Switchgear,
Oxford, England
Mk 3 Version 2
W T Henley,
Gravesend, Kent
Series 6
W T Henley,
Gravesend, Kent
Series 6
400A 3 Phase
Industrial Metering
Cubicle
ES400C5
Ritherdon,
Darwen,
England
To be used for all CT metered
connections between 60 and
300kVA
Remote Metering Panel ES400C5
for substation
connections
Ritherdon,
Darwen,
England
To be used for all CT metered
connections above 300 kVA.
Specific panels for LV metered
connections and HV metered
connections: please specify
which to supplier.
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4.8
Low Voltage Underground Multi -Way Service Distribution Units
Electricity
North West
Specification
Item
Entire MODE MK II
Range
Model DB6, 200A 2
way, direct to busbars
ES502
Agreed
Supplier(s)
Comments
Schneider,
Scarborough,
England
All products in the MODE range are
approved for use in Electricity North
West.
Bemco,
Glasgow,
Scotland
Provides up to 6 outgoing single
phase, 100A connections
Model DB9, 200A 3
way, direct to busbars
Provides up to 9 outgoing single
phase, 100A connections
Model SDB15, 300 &
500A fused incomer,
up to 5 × 100A
outgoing ways per
phase
Provides up to 15 outgoing single
phase, 100A connections
Model SDB30, 500A
fused incomer with
between 6 and 10,
100A outgoing ways
per phase
Provides up to a maximum of 30
outgoing single phase, 100A
connections (500A, 10 Way model)
Model SDB60, 500A
fused incomer with
between 11 and 20,
100A outgoing ways
per phase
Provides up to a maximum of 60
outgoing single phase, 100A
connections (500A, 10 Way model)
Other BEMCO models
& equipment
Consult the Engineer before
specifying or using any other
BEMCO equipment for approval.
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5.
DISTRIBUTION SUBSTATIONS – PLANT, EQUIPMENT & HOUSING
5.1
High Voltage Switchgear
Electricity
North West
Specification
Item
11/6.6 11/6.6 kV Non
Extensible Ring Main
Unit
ES314
Agreed
Supplier(s)
Comments
Schneider
Merlin Gerin,
Leeds,
England for
RN2c &
RN6c
Lucy,
Oxford,
England for
SABRE
VRN2A
.
Schneider
Merlin Gerin
Ringmaster
Leeds,
England for
Range CE2,
CE6, SE6,
CN2
Where required the protection shall
be provided by self powered relays.
Approved models are either Merlin
Gerin VIP 300 or Areva P124S
11/6.6 kV Extensible
Switchgear
Schneider
Merlin Gerin
Leeds,
England for
MU2
11/6.6 11/6.6 kV
Metering Units
Lucy,
Oxford,
England for
SABRE
AMU
In situations where unit, directional and other levels of protection are required or specified
by Electricity North West then a bespoke engineering solution will be required, including
an indoor substation. The specification and design would be non-standard and the above
equipment would not be approved for connection. In such cases detailed specifications will
be issued by Electricity North West.
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5.2 Low Voltage Switchgear
Electricity
North West
Specification
Item
Close coupled Fuse
board/Cabinet
(433/250V)
ES319
Agreed
Supplier(s)
Comments
Schneider,
Scarborough,
England
3 way cabinets with 800A rated
busbars shall be fitted only to
315kVA and 500kVA transformers.
ABB,
Ellesmere
Port, England
Further details are given in ES352.
Lucy,
Oxford,
England
Wall Mounted Fuse
board (433/250V)
ES319
Schneider,
Scarborough,
England
ABB,
Ellesmere
Port, England
Lucy,
Oxford,
England
5.3
Compact Substations
Electricity
North West
Specification
Item
Agreed
Supplier(s)
Comments
200 kVA & 315 KVA
Compact Substations,
11,000V/433V and
200 kVA and 315
KVA Compact
Substations,
6,600V/433V
ES322
Schneider,
Leeds,
England
MDS Range: fitted with Schneider
CN2 transformer switch and
integral LV fusegear with shielded
pattern, 800A, 2 way. Unit is in a
stainless steel enclosure
315 KVA Compact
Substations,
11,000V/433V and
315 KVA Compact
Substations,
6,600V/433V
ES322
Schneider,
Leeds,
England
Mini MDS Range: fitted with
Schneider RN2c non extensible
ring main unit and integral LV
fusegear with shielded pattern,
800A, 3 way. Unit is in a stainless
steel enclosure.
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5.4
Distribution Transformers
Electricity
North West
Specification
Item
315 kVA, 500 kVA,
800 kVA and
1000 kVA Close
Coupled, Unit Type
Transformers
11,000V / 433 V
Agreed
Supplier(s)
Comments
Schneider,
Leeds, UK
Approval is limited to this
factory only.
ABB,
Waterford,
Ireland
Approval is limited to this
factory only.
Pauwels, Cavan,
Ireland
Approval is limited to this
factory only.
Siemens VA
Tech Elin
Transformation
Gmbh, Weiss,
Austria.
Approval is limited to this
factory only.
Areva, Gebze,
Turkey
Approval is limited to this
factory only.
Schneider,
Leeds, UK
Approval is limited to this
factory only.
ABB,
Waterford,
Ireland
Approval is limited to this
factory only.
and
Pauwels, Cavan,
Ireland
Approval is limited to this
factory only.
315 kVA, 500 kVA,
800 kVA and
1000 kVA Cable
Connect Type
Transformers
6,600V / 433 V
Siemens VA
Tech Elin
Transformation
Gmbh, Weiss,
Austria.
Approval is limited to this
factory only.
Efacec, Orporto,
Portugal (Cable
Connect only)
Approval is limited to this
factory only.
ES322
and
315 kVA, 500 kVA,
800 kVA and
1000 kVA
Close Coupled, Unit
Type Transformers
6,600V / 433 V
315 kVA, 500 kVA,
800 kVA and
1000 kVA
Cable Connect Type
Transformers
11,000V / 433 V
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5.5
Distribution Substation Housings
Electricity
North West
Specification
Item
11/6.6 Glass
Reinforced Plastic
Housings for
ES301.
Unit substations:
1)Lucy Sabre fitted
UU drawing
No:A2 022
2) Schneider RN2C
fitted UU drawing
No:A2 016
Morgan Marine,
HV Metered
Connections
(extensible gear):
Merlin Gerin
Switchgear UU
drawing No:A2 011
Details: UU drawing
No:A2 010
ES281Part2 mft.doc
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Envico
Engineering
Swansea, Wales
Comments
Door locks, danger notices,
safety signs, substation name
plates and substation locks to be
supplied by UU and be included
as part of the non contestable
charges
Kingsley Plastics, Note: Individual plinth details
Devon, England
are provided on UU Drawings
indicated in “Item” column to
the left. Latest versions to be
obtained from the Engineer.
Kinpars
Industrial
The location of the proposed
Plastics, Lauder,
substation must be agreed with
Scotland
the Engineer prior to
construction.
E B Solutions
Ltd, Bradford,
Designs for substations can be
England
found in ES352.Any deviations
from this standard design shall
be agreed by UU.
HV Metered
Connections:
1)Lucy Sabre AIMU
and RMU
UU drawing
No:A2 026
2) Schneider
MU2/MU6 and RMU
UU drawing
No:A2 025
GRP Air Inlet Louvre
Agreed
Supplier(s)
Llandybie,
Ammanford,
Carmarthenshire
Wales
ES301
The specification for substation
lighting and power is provide in
ES397
Eurofab Ltd,
Bromborough,
The Wirrall
02/04/08
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Part 2
Page 14 of 18
5.5
continued
Distribution Substation Housings
Electricity
North West
Specification
Item
Brick Built Housings
for
Agreed
Supplier(s)
Door locks, danger notices,
safety signs, substation name
plates and substation locks to be
supplied by UU and be included
as part of the non contestable
charges
ES352
Unit substations:
1)Lucy Sabre fitted
UU drawing
No:A2 022
2) Schneider RN2C
fitted UU drawing
No:A2 016
Note: Individual plinth details
are provided on UU Drawings
indicated in “Item” column to the
left. Latest versions to be
obtained from the Engineer.
HV Metered
Connections (non
extensible gear):
1)Lucy Sabre AIMU
and RMU UU drawing
No:A2 026-02
2) Schneider MU2 and
RMU UU drawing
No:A2 025
The location of the proposed
substation must be agreed with
the Engineer prior to
construction.
Designs for substations can be
found in ES352.Any deviations
from this standard design must
be agreed by UU.
HV Metered
Connections
(extensible gear):
Merlin Gerin
Switchgear UU
drawing No:A2 017
Substation Wall
Louvre
The specification for substation
lighting and power is provide in
ES397
ES352
Eurofab Ltd,
Bromborough,
The Wirrall
ES352
Eurofab Ltd,
Bromborough,
The Wirrall
ES352
Crescent Sheet
Metal Ltd,
Mosley.
UU drawing No:A2
019
Substation Doors
Comments
Full Timber - UU
drawing No:A2 014
Full Louvre - UU
drawing No:A2 007
Top Half Louvre - UU
drawing No:A2 008
Lower Half Louvre UU drawing
No:A2 009
Hasp & Staple
Arrangement
UU drawing No:A2
021
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Rubber Mat
6.
ES602
Rayflex Rubber
FUSES
6.1
Fuses - LV Switchgear and cut outs
Electricity
North West
Specification
Item
100A
ES334
160A
Agreed
Supplier(s)
Comments
Lawson
Fuses Ltd
26/8/09
Cooper
Bussmann
Ltd
200A
250A
315A
355A
400A
500A
630A
6.2
Fuses - Services
Electricity
North West
Specification
Item
Agreed
Supplier(s)
Comments
26/8/09
ES334
16A
60A
Lawson
Fuses Ltd
To be used in street lighting cut outs
Cooper
Bussmann
Ltd
80A
100A
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6.3
Fuses - TLF
Electricity
North West
Specification
Item
3A
ES334
Agreed
Supplier(s)
Lawson
Fuses Ltd
5A
Model: XF 3
Model: XF 5
7.5A
Cooper
Bussmann
Ltd
10A
7.
Comments
26/8/09
Model: XF 7.5
Model: XF 10
12.5A
Model: XF 12.5
15A
Model: XF 15
DOCUMENTS REFERENCED
British Standards
BS 476-6
- Fire tests on building materials and structures
BS 921
- Rubber mats for electrical purposes
Note:
Electricity North West is not able to supply copies of any of the above
documents, but copies may be obtained from the British Standards Institution.
Energy Networks Association
ENA TS 12-3
- Outdoor Meter Cupboards
ENA TS 37-2
- Substation Cable Distribution Boards
ENA TS 43-94 - Earth Rods and their Connectors
Note:
Neither Electricity North West is not able to supply copies of any of the above
documents, but copies may be obtained from the Energy Networks Association.
Electricity North West
CP411 LV
- Mains Practice up to and Including 132kV - Cable Jointing up to and
Including 1000Volts
CP411 Part 2
- Mains Practice up to and Including 132kV - 6.6/11kV Cable Jointing
ES301
- Distribution Substation Housings, Replacement Roofs and Doors
ES314
- 12kV and 7.2kV 21.9kA Switchgear
ES319
- LV Distribution Fusegear
ES322
- Ground Mounted Distribution Transformers
ES332
- 100A House Service Cut-outs
ES334
- HV and LV Fuses
ES352
- Design of Distribution Substations and Transforming Points
ES397
- Electrical Installations within Distribution Substations
ES400C5
- Specification for Heavy-Duty Three-Phase Cut-Outs
ES400C6
- Specification for Street-Lighting Cut-outs
ES400C8
- LV Service Cables
ES281Part2 mft.doc
Issue 1
02/04/08
DCB ES281
© 2010 Electricity North West Limited.
Part 2
Page 17 of 18
8.
ES400C9
- 11kV Distribution Cables
ES400C11
- Low Voltage Mains Cables
ES400D4
- Plastic Ducts, Conduit & Accessories
ES400J2
- Specification for 11kV/6.6kV Joints
ES400J3
- Low Voltage Cable Joint Shells
ES400L5
- Two-Way and Four-Way Underground Link Boxes
ES400R10
- Cold-Pour Resin Compound for Encapsulating Joints on LV, 11kV and
33kV Cables
ES400T2
- Specification for Plastic Underground Marker Tape
ES400T3
- Specification for Tape, Cotton, Plain
ES400T5
- Specification for PVC Tapes for Electrical Purposes
ES400T8
- Specification for Cable tiles - Plastic
ES400W1
- Specification for Aluminium and Copper Binding Wire, Plain and PVC
Covered
ES502
- Multi-way Service Distribution Boards.
KEYWORDS
Cable; connection; domestic; ICP; joint; material; plant; service.
ES281Part2 mft.doc
Issue 1
02/04/08
DCB ES281
© 2010 Electricity North West Limited.
Part 2
Page 18 of 18