Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Northern Powergrid Appendix A for ENA Engineering Recommendation G81 ‐ Part 5: Materials Specification Framework for industrial and commercial underground connected loads up to and including 20kV
1. Purpose
This document forms Appendix A to Energy Networks Association (ENA) Engineering Recommendation (ER) G81 ‐ Part 5: Materials Specification, “Framework for design and planning of industrial and commercial underground connected loads up to and including 20kV” and should be read in conjunction with that document.
This document contains a summary of the information contained in Northern Powergrid network product specifications.
Please note that Northern Powergrid is unable to provide copies of external documentation, standards and specifications referenced in this document, but copies may be obtained from the relevant issuing body (such as the British Standards Institution (BSI) or Energy Networks Association).
Appendix 1 of this document details assessed products by reference, description, supplier and associated standards.
If additional details are required, reference should be made to the individual policy documents cited in section 7.
This document supersedes the following documents, all copies of which should be destroyed.
Ref Version Title
G81 Part 5 1.1 Engineering Recommendation G81 ‐ Part 5: Materials Specification
2. Scope
This document applies to the providers of network connections to the distribution network owned and operated by Northern Powergrid (Northeast) Ltd and Northern Powergrid (Yorkshire) plc
Northern Powergrid (Northeast) Ltd and Northern Powergrid (Yorkshire) plc are the Distribution Network Operators (DNOs) of Northern Powergrid.
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2.1 Contents
1. Purpose ..................................................................................................................................................................... 1
2. Scope ......................................................................................................................................................................... 1
2.1 Contents ........................................................................................................................................................... 2 3. Material Standards ........................................................................................................................................... 3
4. Assessment Required ................................................................................................................................................ 3
4.1 Product Assessment ................................................................................................................................................. 3 4.2 Supplier Assessment ................................................................................................................................................ 3
5. Provision of Materials ................................................................................................................................................ 3
6. Assessed Products ..................................................................................................................................................... 3
6.1 Assessed List ..................................................................................................................................................... 3 6.2 Alternative Manufacturers Equipment .............................................................................................................. 4
7. References ..................................................................................................................................................................... 4
7.1 Internal Documentation .................................................................................................................................... 4 Appendix 1 – Assessed Products/Suppliers ........................................................................................................................ 9
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3. Material Standards
Materials shall meet the requirements of all applicable standards and legislation. This will include the latest revisions of: ‐
British Standards
International and European Standards
Energy Networks Association Technical Specifications
Northern Powergrid Technical Specifications.
Consideration should also be given to other Northern Powergrid design documents and the business approach to customer connections as they may differ from other Distribution Licence Holders.
Appendix 1 of this document lists the Northern Powergrid product specifications relevant for each product type.
4. Assessment Requirement
4.1 Product Assessment
All materials procured by Northern Powergrid have undergone assessment. Network products are assessed in compliance with Northern Powergrid documented procedure PRC/200/203 – Management Process for the assessment and introduction of distribution plant, equipment or materials. The type of assessment will vary depending on the complexity of the product but may include field trials, witness type/routine testing, assessment of test data and product data sheets etc. This is a fully documented system that requires appropriate authorisation.
4.2 Supplier Assessment
It is Northern Powergrid policy to carry out audits of supplier’s quality management systems when the requirement arises. This procedure is documented in PRC/200/204 – Management Process for the audit of supplier’s quality management systems. A commercial assessment of potential is also carried out prior to the placement of contract.
5. Provision of Materials
Plant and materials delivered from manufacturers shall be unloaded and stored in a way that avoids damage and exposure to moisture. Materials shall be inspected during installation and any found defective shall be replaced.
It is important to note that manufacturers may manufacture a range of similar equipment types or designation and that all may not necessarily be assessed or suitable. It is the contractors responsibility to ensure that all material meet the requirements of this document.
6. Assessed Products
6.1 Assessed List
Appendix 1 of this document details assessed products by reference, description, supplier and associated standard. The ownership and update of this list is the responsibility of Northern Powergrid who has the right to remove products and/or suppliers if necessary. This may be due to product failures or a change in company policy. Materials shall be applied in accordance with Northern Powergrid or the supplier’s installation instructions.
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6.2 Alternative Manufacturers Equipment
Alternative products will require a full assessment and will be considered at the discretion of Northern Powergrid. It must be noted that additional time will be needed to complete an appropriate assessment. Information shall be provided that will allow compliance and quality assessments to be made. The level of information required will relate to the complexity of the equipment and/or materials being considered.
7. References
7.1 Internal Documentation
This document contains information extracted from the following Northern Powergrid network product specifications, which are available on request.
Overhead Line Network Products
Reference Title
NPS/001/001 Technical Specification for Wood Poles and Associated Products for Overhead Lines
NPS/001/002 Technical Specification for Helical Products
NPS/001/003 Technical Specification for Overhead Line Air‐Break Switch Disconnectors
NPS/001/004 Technical Specification for 11, 20 and 33kV Pole Mounted Expulsion Fuses, Auto Sectionalising Links and Solid Links
NPS/001/005 Technical Specification for Steelwork, Conductor/Insulator Fittings and Stay Fittings for Overhead Lines and General Construction Works
NPS/001/006 Technical Specification for Insulators for Overhead Lines Up to And Including 132kV
NPS/001/007 Technical Specification for Conductors for Overhead Lines
NPS/001/008 Technical Specification for Surge Arresters
NPS/001/009 Technical Specification for 11kV, 20kV and 33kV Pole Mounted Auto‐reclose Circuit Breakers
NPS/001/010 Technical Specification for Fasteners And Fixings For Wood Pole Overhead Lines and General Construction Works
NPS/001/011 Technical Specification for Notice Plates and Signs for Use on Northern Powergrid Distribution Systems
NPS/001/012 Technical Specification for Pole Mounted Auxiliary Supply Transformers
NPS/001/013 Technical Specification for Stay wire for Overhead Lines
NPS/001/014 Technical Specification for Overhead Line Fault Passage Indicators
NPS/001/015 Technical Specification for Barbed Wire
NPS/001/016 Technical Specification for Compression Fittings and Mechanical Conductor Fittings for Overhead Lines
NPS/001/017 Technical Specification for HV and LV Fuse Links
NPS/001/018 Technical Specification for LV Steel Poles
NPS/001/019 Technical Specification for Low Voltage Conductor Shrouding Materials
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Overhead Line Network Products (continued) Reference Title NPS/001/020 Technical Specification for Ground Anchor Systems for Use in Overhead Lines
NPS/001/024 Technical Specification for ABC Fittings
NPS/001/025 Technical Specification for Cable Capping
NPS/001/030 Technical Specification for Service Wall Boxes
NPS/001/032 Technical Specification for Auto Sectionalising Links
Underground Network Products Reference Title NPS/002/001 Technical Specification For Earthing Materials
NPS/002/002 Technical Specification For Industrial and Insulating Tapes
NPS/002/003 Technical Specification for Cable Ducts and Protective Tiles and Tile tape.
NPS/002/004 Technical Specification For 25‐Amp Street Furniture Cut outs
NPS/002/005 Technical Specification For Industrial Service Units
NPS/002/006 Technical Specification For Heavy‐Duty and House Service Cut outs
NPS/002/007 Technical Specification For Meter boards and Meter cabinets
NPS/002/008 Technical Specification For Cold Pour Resin and Hot pour Compounds
NPS/002/009 Technical Specification For LV Mechanical Lugs and Connectors
NPS/002/010 Technical Specification For Jointing sundries
NPS/002/011 Technical Specification For Cable cleats
NPS/002/012 Technical Specification For LV Underground Link Boxes.
NPS/002/013 Technical Specification For Telephone pilot and telephone joints.
NPS/002/014 Technical Specification For LV Joints and terminations
NPS/002/015 Technical Specification For 11 and 20kV joints and terminations
NPS/002/018 Technical Specification For Telephone pilot and telephone Cables
NPS/002/019 Technical Specification For LV Distribution and Service Cables
NPS/002/020 Technical Specification For 11 and 20kV Cables
NPS/002/024 Technical Specification For Fibre Optic Cables and Fibre Wrap
NPS/002/025 Technical Specification for Replacement Covers and Frames for Underground Link Box Chambers.
NPS/002/027 Technical Specification For Replacement Outdoor Meter Cupboard Frames And Doors.
Plant and Switchgear Network Products Reference Title NPS/003/002 Technical Specification for 30V Tripping Batteries and Chargers
NPS/003/005 Technical Specification for LV Fuse boards & Switchgear NPS/003/006 Technical Specification for Primary 11 & 20kV Circuit Breakers
NPS/003/011 Technical Specification for 11 & 20kV Ground Mounted Distribution Transformers
NPS/003/013 Technical Specification for Fault Passage Indicators and Current Transformers for use with Ground Mounted 11 and 20kV Switchgear
NPS/003/014 Technical Specification for Distribution S/S 11 & 20kV Switchgear NPS/003/016 Technical Specification for 110V Batteries and Chargers
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Reference Title
NPS/003/017 Technical Specification For Remote Control Systems For Use With Ground Mounted 11kV & 20kV Switchgear
NPS/003/018 Technical Specification for 415V Multi Service Distribution Fuse boards
NPS/003/019 Technical Specification for Insulating Fluids for use in Plant and Switchgear NPS/003/026 Technical Specification for 11, 20 & 33kV Neutral CT’sNPS/003/027 Technical Specification For 24V Battery And Charger Systems
NPS/003/029 Technical Specification For Retrofit 11 and 20kV Circuit Breakers
NPS/003/031 Technical Specification For Room Thermostats, Humidistats and Boost Facility
NPS/003/034 Technical Specification For Pole Mounted 11 and 20kV Distribution Transformers
NPS/005/001 Technical Specification for Tele‐protection Intertripping Equipment
NPS/005/001 Technical Specification for Insulated matting utilised with LV Switchboards
Codes of Practice Reference Title
PRC/200/203 Management Process for the assessment and introduction of distribution plant, equipment or materials
PRC/200/204 Management Process for the audit of supplier’s quality management systems
Substation Buildings Reference Title
NPS/006/002 Technical Specification for Pre‐fabricated Distribution Substation EnclosuresNPS/100/001 Technical Specification for Insulated Matting utilized with LV SwitchboardsC993889 Rev A 315 – 500 KVA UDE Masonry Enclosure standard layout
C993890 Rev A 315 – 500 KVA UDE Prefabricated Enclosure standard layout
C993891 Rev A 800 – 1000 KVA UDE Masonry Enclosure standard layout drawing
C993892 Rev A 800 – 1000 KVA UDE Prefabricated Enclosure standard layout
C993893 Rev A 315 – 500 KVA Extensible UDE Masonry Enclosure standard layout
C993894 Rev A 315 – 500 KVA Extensible UDE Prefabricated Enclosure standard layout
C993895 Rev A 800 – 1000 KVA Extensible UDE Masonry Enclosure standard layout
C993896 Rev A 800 – 1000 KVA Extensible UDE Prefabricated Enclosure standard layout
C993897 Rev A 20kV Distribution Substation Masonry Enclosure standard layout
C993898 Rev A 20kV Distribution Substation UDE Prefabricated Enclosure standard layout
C993899 Rev A 315 – 1000kVA Slide in UDE in Masonry Enclosure
C993899 Rev A 315 – 1000kVA Slide in UDE in Prefabricated Enclosure
C993903 Rev A 11kV Extensible HV Panel with metering Annex in Masonry Enclosure
C993904 Rev A 11kV Extensible HV Panel with metering annex in Prefabricated Enclosure
C993905 Rev A 20kV Extensible HV Panel with metering annex in Masonry Enclosure
C993906 Rev A 20kV Extensible HV Panel with metering annex in Prefabricated Enclosure
C993907 Rev A 11kV RMU with optional Extensible Switch in Masonry Enclosure
C993908 Rev A 11kV RMU with optional Extensible Switch in Prefabricated Enclosure
C993909 Rev A 20kV RMU Cable Connected 1600kVA Tx and 2500A ACB
C993910 Rev A 11kV RMU Cable Connected 1600kVA Tx and 2500A ACB
C1004506 Restricted Site up to 800kVA UDE (5 Way LV) in Masonry Enclosure
C1004507 Restricted Site up to 800kVA UDE (5 Way LV) in Prefabricated Enclosure
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C1004508 Restricted Site up to 1000kVA UDE in Masonry Enclosure
Substation Building Accessories C969422 Rev C Steel Fully Ventilated UDE Door Details
C969423 Rev C Standard Steel Door Details
C969424 Rev B Standard Hardwood Door Details
C969425 Rev B Hardwood Fully Ventilated UDE Door
C969426 Rev B Steel Door Louvre
C969427 Rev B Steel Wall Louvre
C969428 Rev B Steel / GRP Roof
C969998 Rev C Generator Cable Access
C992314 Rev A Standard Lock Cloaking Device
C978643 Rev A Earth Point Connection details
C978644 Rev A Steel Hi Security Door and Furniture Photos
C993352 Rev A Steel Punched Door Louvre
C993353 Rev A Steel Punched Wall Louvre
C993354 Rev A Hi Security Lock Cloaking Device
C993355 Rev A Lock Cloaking Device Photos
C993355 Rev A Dual Locking Arrangement and hasp and Staples
C978465 Rev A Timber Gated and Fencing
C978466 Rev A Palisade gates and Fencing Details
C978467 Rev A Hardwood Door and Furniture Photos
C993357 Rev A Street lighting Control Box Hi Security Cover
C993358 Rev A Asphalt Roof Covering Replacement
C993359 Rev A NPG Signage – Full List with Reference and Photos
C993360 Rev A Signage for Anti‐Climbing Barriers and Anti‐Vandal Paint
C993367 Rev A Asbestos Inspection Management Systems
Substation ‐ Earthing Arrangement Drawings Reference Title
C1010944 Schedule of Drawings ‐ Earthing Arrangements for policy IMP/010/011
C1024527 315 ‐ 1000KVA Slide In UDE with Customer LV MCCB Earthing Arrangement ‐ Combined Site (Cold)
C1010793 315 ‐ 1000KVA Slide In UDE Earthing Arrangement ‐ Combined Site (Cold)
C1010820 800 ‐ 1000KVA UDE Earthing Arrangement ‐ Combined Site (Cold)
C1010822 11kV Extensible Panel With Metering Annexe Earthing Arrangement ‐ Combined Site (Cold)
C1010824 11kV RMU Cable Connected 1600KVA TX and 2500A MCCB Earthing Arrangement ‐Combined Site (Cold)
C1010827 11kV RMU and Metering Unit with Optional Extensible Switch Earthing Arrangement ‐ Combined Site (Cold)
C1010839 20kV RMU Cable Connected 1600KVA Transformer and 2500Amp MCCB Earthing Arrangement ‐ Combined Site (Cold)
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Reference Title
C1010841 20kV Extensible HV Panel with Metering Annexe Earthing Arrangement ‐ Combined Site (Cold)
C1010842 20kV Distribution Substation Earthing Arrangement ‐ Combined Site (Cold)
C1010854 315 ‐ 1000kV Slide in UDE Earthing Arrangement ‐ Separate Site (Hot)
C1010855 11kV RMU Cable Connected 1600KVA Transformer and 2500A MCCB Earthing Arrangement ‐ Separate Site (Hot)
C1010858 20kV RMU Cable Connected 1600KVA Transformer and 2500A MCCB Earthing Arrangement ‐ Separate Site (Hot)
C1010864 800 ‐ 1000KVA UDE Earthing Arrangement ‐ Separate Site (Hot)
C1010867 20kV Distribution Substation Earthing Arrangement ‐ Combined Site (Hot)
C1010868 11kV RMU and metering Unit with Optional Extensible Sw Earthing Arrangement ‐ Separate Site (Hot)
C1010869 20kV Extensible HV Panel with Metering Annexe Earthing Arrangement ‐ Separate Site (Hot)
C1010879 11kV Extensible HV Panel with Metering Annexe Earthing Arrangement ‐ Separate Site (Hot)
C1010947 Earthing Connection Point Examples for Policy IMP/010/011
C978643 Example of Earth Point Connection Details
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Appendix 1 – Assessed Products/Suppliers
High Voltage Cable Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
11,000 Volt‐SINGLE Core: Stranded Copper Conductor with XLPE Insulation: Fully Bonded: Copper Earth Screens: Extruded Polyethylene Oversheath: 300mm2, 400mm2, 500mm2 and 630mm2
BS 7870/4
BS6360
BS6234
NPS/002/020 Copper Cable Co – Bydoszcz Poland
Hellenic – Thiva (Athens) Greece
NKT Cables – Asnaes Denmark
Prysmian Cables ‐ Wrexham UK
11,000 Volt ‐ TRIPLEX Formation: Solid Aluminium Core with XLPE Insulation: Fully Bonded: Copper Earth Screens & Extruded Polyethylene Oversheath; 95mm2, 185mm2, 300mm2
BS 7870/4
BS6360
BS6234
NPS/002/020 Copper Cable Co – Bydoszcz Poland
Hellenic – Thiva (Athens) Greece
NKT Cables – Asnaes Denmark
Prysmian Cables ‐Wrexham UK22,000 Volt – TRIPLEX Formation: Solid Aluminium Core with XLPE Insulation: Fully Bonded: Copper Earth Screens & Extruded Polyethylene Oversheath; 95mm2, 185mm2,
BS 7870/4
BS6360
BS6234
NPS/002/020 Copper Cable Co – Bydoszcz Poland
Prysmian Cables ‐ Wrexham UK
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High Voltage Joints and Terminations Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
11,000 Volt:
Single Core Polymeric Indoor Termination. Cold Applied
BS7888 HD628 HD 629
NPS/002/015 TE Connectivity – Witham, UK
Sicame Electrical Distribution – Newcastle, UK
TE Connectivity – Cold Applied
3M Type Cold Applied
22,000 Volt:
Single Core Polymeric Indoor Termination. Cold Applied
BS7888 HD628
HD 629
NPS/002/015 TE Connectivity – Witham, UK
Sicame Electrical Distribution – Newcastle, UK
TE Connectivity – Cold Applied
3M Type Cold Applied
Termination Moulded Boots Cold Applied
or
Heat shrink
BS7888 HD628
HD 629
NPS/002/015
TE Connectivity – Witham,
UK Sicame Electrical Distribution – Newcastle, UK
TE Connectivity – Cold Applied or Heat Shrink
3M Type Cold Applied
11,000 Volt:
Single Core Polymeric Outdoor Termination. Cold Applied
BS7888 HD628
HD 629
NPS/002/015 TE Connectivity – Witham, UK
Sicame Electrical Distribution – Newcastle, UK
TE Connectivity – Cold Applied
3M Type Cold Applied
22,000 Volt:
Single Core Polymeric Outdoor Termination. Cold Applied
BS7888 HD628
HD 629
NPS/002/015 TE Connectivity – Witham, UK
Sicame Electrical Distribution – Newcastle, UK
TE Connectivity – Cold Applied
3M Type Cold Applied
Insulated Pre‐Moulded Separable Connectors 250Amp Push Fit Non‐Load Break 630 / 800 Amp Bolted Type
BS7888 HD628
HD629 NPS/002/015
TE Connectivity – Witham, UK
Required to fit Interfaces as detailed in Cenelec EN 50180 and EN 50181
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Item National / International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Stop End Kits For Existing
Paper Cables – RESIN Filled
& XLPE Single Core Cables
BS7888 NPS/002/015 TE Connectivity – Witham, UK
Sicame Electrical Distribution – Newcastle, UK
TE Connectivity – Cold Applied
3M Type Cold Applied supplied by Sicame ED
11,000 Volt: XLPE – XLPE Single Core Straight Joint Kit Includes Mechanical Connectors
BS7888 Cenelec HD 628 & HD 629
NPS/002/015 TE Connectivity – Otterbrun, Germany Prysmian – Wrexham, UK Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
22,000 Volt: XLPE – XLPE Single Core Straight Joint Kit Includes Mechanical Connectors
BS7888Cenelec HD 628 & HD 629
NPS/002/015 TE Connectivity – Otterbrun, Germany Prysmian – Wrexham, UK Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
11,000 Volt: XLPE – XLPE Single Core Branch Joint Kit Includes Mechanical Connectors
BS7888Cenelec HD 628 & HD 629
NPS/002/015 TE Connectivity – Otterbrun, Germany Prysmian – Wrexham, UK Sicame Electrical Distribution – Newcastle UK
3M Type supplied by Sicame ED
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Item National / International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
22,000 Volt: XLPE – XLPE Single Core Branch Joint
Kit Includes Mechanical Connectors
BS7888 Cenelec HD 628 & HD 629
NPS/002/015 TE Connectivity – Otterbrun, GermanyPrysmian – Wrexham, UK Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
11,000 Volt Trifurcating/Transition Joint (3‐Core Paper – 3 x Single Core XLPE) 95/185mm2 & 185/300mm2 Kit Includes Mechanical Connectors RESIN Filled
BS7888 Cenelec HD 628 & HD 629
NPS/002/015 TE Connectivity – Otterbrun, Germany Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
11,000 Volt Branch Joint (3‐Core Paper / 3–Core Paper & 3‐ Core Paper / 3 x Single Core XLPE cables) 95/185mm2 & 185/300mm2
Kit Includes Mechanical Connectors RESIN
BS7888 Cenelec HD 628 &HD 629
NPS/002/015 TE Connectivity – Otterbrun, Germany Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
22,000 Volt Trifurcating/Transition Joint (3‐Core Paper – 3 x Single Core XLPE) 95/185mm2
Kit Includes Mechanical Connectors RESIN Filled
BS7888 Cenelec HD 628 & HD 629
NPS/002/015 TE Connectivity – Otterbrun, Germany Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
22,000 Volt Straight Joint (3‐Core Paper – 3 Core Paper 95/185mm2
Kit Includes Mechanical Connectors
RESIN Filled
BS7888
Cenelec
HD 628 &
HD 629
NPS/002/015 TE Connectivity , Witham, UK
Sicame Electrical Distribution – Newcastle, UK
3M Type supplied by Sicame ED
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Joint Resins Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
2‐Part Polyurethane Resin Engineering Recommendation C81
NPS/002/008 WT Henley – Belvedere Kent
Prysmian ‐ Wrexham, UK
TE Connectivity ‐ Berlin, Germany
2 Part Cold Pour Re enterable Resin Engineering Recommendation C81
NPS/002/008 TE Connectivity – Witham UK
Used only for temporary low voltage joints
Cold Pour Insulating Compound Engineering Recommendation C81
NPS/002/008 TE Connectivity ‐ Berlin, Germany Guroflex
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Cable Protection and Support Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Twin Walled Duct 125mm Bend – 125mm Twin Walled SPLIT Duct 125mm
ENATS 12‐24 NPS/002/003 Polypipe Civils Ltd – Doncaster, UKEmtelle – Hawick, Scotland
Plastic cable cover Tape 200mm x 2.5mm, Nominal Length 40M Plastic cable cover Tape 150mm x 2.5mm,Nominal Length 40M
ENATS 12‐23 and
BS‐2484 NPS/002/003
Centriforce Liverpool, UK Polypipe Civils Ltd – Doncaster, UK
Cable Guard –
Anti‐vandal and Types 1 to 4
BS EN 50086 NPS/001/025
Ensto UK –Southampton, UKPolypipe Civils – UK Boddingtons Electrical – Stanstead, UK
Boddingtons Electrical only for anti‐vandal type
Cable Cleats
NPS/002/011
Ellis Patents – York, UK
Prysmian – Wrexham, UK
Jointing Technologies – UK
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Substation Buildings Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
GPR Enclosures Various detailed in Section 7.1
Kingsley Plastics Limited
Envico Engineering
EB Solutions Limited
Gladston UK Limited
Substation Buildings Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Substation Doors and Roofs Various detailed in Section 7.1
AIG Engineering Limited
Bradbury Security
Prema Doors Limited
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Substation Safety Equipment Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Locks Supplied by Northern Powergrid
Rubber Mat BS 921
Rayflex Rubber, Warrington, UK MacLellan Rubber – Wolverhampton, UK
Notice Plates and Signs
ENATS 43‐90 NPS/001/011
Fibreweb and Freestyle Signs
Outdoor signs shall offer a guaranteed 10 year UV stability
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Transformers Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Ground Mounted 11,000/500 Volt Three phase
ENATS 35‐1 NPS/003/011
Schneider Electric ‐ Leeds, UK
Efacec Energia ‐ Portugal
Ground Mounted 20,000/500 Volt Three phase ENATS 35‐1 NPS/003/011
Efacec Energia Portugal
Schneider Electric ‐ Leeds, UK
Pole Mounted 11,000 and 20kV, Single, Split and Three phase
ENATS 35‐1 NPS/003/011 CG Power Systems Ireland Ltd ‐ Cavan. Ireland
Previously Pauwels Trafo Cavan, Ireland
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Substation Switchgear including Low Voltage FuseboardsItem National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
400V Distribution Fuseboards,
Fusepillars and Fusecabinets including ACBs
ENATS 37‐2 & BS EN 50300
NPS/003/005 Schneider Electric ‐ Leeds, UK
11 kV RMU ENATS 41‐36 NPS/001/014 Schneider Electric ‐ Leeds, UK
Lucy Switchgear ‐ Thame, UK
Schneider Types: RN2C, RE2c, RN6c & RE6c
Lucy Type:VRN2A
11kV Extensible switchgear ENATS 41‐36 NPS/001/014 Schneider Electric ‐ Leeds, UK Ringmaster Range
11kV Metering unit ENATS 41‐36 NPS/001/014 Schneider Electric ‐ Leeds, UK Types: MU2, MU6 & CE6 T5/21
20kV RMU ENATS 41‐36 NPS/001/014 ABB ‐ Norway Lucy Switchgear – Thame, UK
Type: Safering Type: VRN24
20kV Extensible switchgear ENATS 41‐36 NPS/001/014 ABB ‐ Norway Type: Safeplus
20kV Metering unit ENATS 41‐36 NPS/001/014 ABB ‐ Norway Type: Safeplus
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Fuse Links Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
HV Fuse Links BS EN 60282 NPS/001/017
Lawson Fuses –Newcastle, UK Cooper Bussmann – UK
LV Fuse Links BS 88 and BS EN 60269 NPS/001/017
Lawson Fuses –Newcastle, UK Cooper
Bussmann – UK
Earthing Materials
Earth plate NPS/002/001 BS EN 13599
A N Wallis ‐ Nottingham, UK
WJ Furse ‐ Nottingham, UK
Earth Tape (copper and aluminium)
NPS/002/001 ENATS 43‐94
A N Wallis ‐ Nottingham, UK
WJ Furse ‐ Nottingham, UK
Earth Rod NPS/002/001 ENATS 43‐94 A N Wallis ‐ Nottingham, UK
WJ Furse ‐ Nottingham, UK
Earth Rod Accessories NPS/002/001 ENATS 43‐94 A N Wallis ‐ Nottingham, UK
WJ Furse ‐ Nottingham, UK
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Low Voltage Mains Cables Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
95mm2,185mm2 and 300mm2: Waveform:
3 x Solid Aluminium Polymeric Insulated Phase Conductors: Copper Neutral/Earth Conductor & PVC Oversheath
BS 7870 ‐ 3 NPS/002/019 Hellenic Cables – Athens, Greece
NKT – Asnaes, Denmark
Prysmian ‐Wrexham, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
95mm2,185mm
2 and 300mm
2: SNE
Waveform:
4 x Solid Aluminium Polymeric Insulated Phase Conductors: Copper Earth Conductor & PVC Oversheath
BS 7870 ‐ 3 NPS/002/019 Hellenic Cables – Athens, Greece
NKT – Asnaes, Denmark
Prysmian ‐ Wrexham, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
95mm2, 185mm2 and 300mm2: LSOH (Orange) Waveform: 3 x Solid Aluminium Polymeric Insulated Phase Conductors, Concentric Copper Neutral/Earth Conductor, LSOH Oversheath.
BS 7870 – 3 BS 7870 ‐3 .50
NPS/002/019 Hellenic Cables – Athens, Greece
NKT – Asnaes, Denmark
Prysmian ‐ Wrexham, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
95mm2, 185mm2 and 300mm2: LSOH (Orange) Waveform: 4 x Solid Aluminium Polymeric Insulated Phase Conductors, Concentric Copper Earth Conductor, LSOH Oversheath.
BS 7870 – 3 BS 7870 ‐3 .50
NPS/002/019 Hellenic Cables – Athens, Greece
NKT – Asnaes, Denmark
Prysmian ‐ Wrexham, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Item National / International Standard
Northern Powergrid Technical S ifi i
Assessed Supplier(s) Additional Comments
800mm2 XLPE Single Core B.S 5467 BS 6346 NPS/002/019 Copper Cable Co ‐ Bydgoszcz, Poland
Hellenic – Athens, Greece
Prysmian – Wrexham, UK Un‐armoured 480mm2 Solid Sectoral (4x120mm2) Aluminium PVC Outer Sheath
BS 7889 NPS/002/019 Copper Cable Co ‐ Bydgoszcz, Poland
Hellenic – Athens, Greece
Prysmian ‐ Wrexham, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Low Voltage Mains Joints Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Mains Straight Joints – Resin Filled Type NPS/002/014 Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UKMains Branch Joints – Resin Filled Type NPS/002/014 Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UK
Mains Service Joint – Resin Filled Type NPS/002/014 Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UK
Service Branch Joint – Resin Filled Type NPS/002/014 Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UK
Mains Stop‐Ends – RESIN Filled Type NPS/002/014 Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UK
Service Straight Joint (Single and Three Phase) – Heat Shrink
NPS/002/014 Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Service Stop‐ends
(Single and Three Phase) – Heat Shrink
NPS/002/014
Sicame Electrical Distribution ‐
Newcastle, UK
TE Connectivity – Witham, UK
Low Voltage Linkboxes Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
2-way Linkbox Resin filled ENATS C81‐3 NPS/002/012 TE Connectivity ‐ Witham, UK
Sicame Electrical Distribution –
Newcastle, UK
4‐way Linkbox Resin filled ENATS C81‐3 NPS/002/012 TE Connectivity ‐ Witham, UK
Sicame Electrical Distribution –
Newcastle, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Low Voltage Service Cables Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
25mm & 35mm – CNE 1x Circular Solid Aluminium Core
BS7870/3 NPS/002/019 Cabelte – Porto, Portugal Ericsson Cables ‐ Falun, Sweden Tratos – Knowsley, UK
Phase Insulation to be XLPE Type GP8
– Complying toBS7655
35mm – CNE 1x Circular Solid Aluminium Core With Orange LSOH Oversheath
BS7870/3 NPS/002/019 Cabelte – Porto. Potugal Ericsson Cables ‐ Falun, Sweden
Tratos – Knowsley, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
35mm – SNE 1x Circular Solid Aluminium Core
BS7870/3 NPS/002/019 Cabelte – Porto, Portugal Ericsson Cables ‐ Falun, Sweden Tratos – Knowsley, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
35mm – CNE 3x Circular Solid Aluminium Cores
BS7870/3 NPS/002/019 Cabelte – Porto. Potugal Ericsson Cables ‐ Falun, Sweden Tratos – Knowsley, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
Version:- 2.0 Date of Issue:- Sept 2013 Page 25 of 33
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Item National / International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
35mm – CNE 3x Circular Solid Aluminium Core With Orange LSOH Oversheath
BS7870/3 NPS/002/019 Cabelte – Porto. Potugal Ericsson Cables ‐ Falun, Sweden
Tratos – Knowsley, UK
Phase Insulation to be XLPE Type GP8 – Complying to BS7655
35mm – SNE 3x Circular Solid Aluminium Core
BS7870/3 NPS/002/019
Cabelte – Porto. Potugal Ericsson Cables ‐ Falun, Sweden
Tratos – Knowsley, UK
Phase Insulation to be XLPE Type GP8
– Complying to BS7655
Service Straight Joint (Single and Three Phase) – Heat Shrink
NPS/002/014
Sicame Electrical Distribution ‐Newcastle, UK TE Connectivity ‐ Witham, UK
Service Stop‐Ends (Single and Three Phase) – Heat Shrink
NPS/002/014
Sicame Electrical Distribution Newcastle, UK TE Connectivity ‐ Witham, UK
Service / Service Branch Joints ‐Resin Filled NPS/002/014
Sicame Electrical Distribution Newcastle, UK TE Connectivity ‐ Witham, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Low Voltage Service Terminations Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Multi‐service distribution board with 7, 10, 15, or 30 100amp outgoing fuseways.
IEC 61439 NPS/003/018 Schneider – Leeds, UK
Bemco – Glasgow, UK
Lucy Switchgear – Thame, UK
Various cable entry options
Industrial Service Unit IEC 61439 NPS/002/005 Schneider – Leeds, UK
Single and Three Phase Service Termination BS 7657 NPS/002/006 WT Henley ‐ Belvedere, UK Lucy Switchgear ‐ Oxford, UK Cooper Bussmann – Burton, UK
200Amp 300Amp & 500Amp Heavy Duty Cut‐Outs
NPS/002/006 Lucy Switchgear ‐ Oxford, UK
Street Lighting Cut‐Outs Single Pole SNE & CNE and
Double Pole CNE
BS 7654 &
ENATS 12‐19
NPS/002/004 WT Henley ‐ Belvedere, UK
Lucy Switchgear ‐ Oxford, UK
Tofco – Newcastle, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Meter Cabinets, Doors and AccessoriesItem National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
38mm (ID) Duct (5m length) BLACK EATS 12‐24 NPS/002/003 Jewson‐ Various UK Locations
38mm (ID) Duct Bend BLACK EATS 12‐24 NPS/002/003 Jewson‐ Various UK Locations
38mm “Hockey Stick” (White or Black) EATS 12‐24 NPS/002/003 Jewson‐ Various UK Locations
125mm Duct (3m length) EATS 12‐24 NPS/002/003 Jewson‐ Various UK Locations
125mm Duct 900 Bend EATS 12‐24 NPS/002/003 Jewson‐ Various UK Locations
Outdoor Meter Cabinets (Flush Mounted)
ENATS12‐3 NPS002/007
Jewson‐ Various UK Locations
Manufacturer – Mitras Stoke‐on‐Trent, UK
Outdoor Meter Cabinet (Surface Mounted)
EATS 12‐24 NPS002/007
Jewson ‐ Various UK Locations
Manufacturer – Mitras Stoke‐on‐Trent, UK
Internal Meter Boards NPS/002/007 Wootons ‐ UK 12mm Class ”O”
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Poles Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Wood Poles and Associated Products ENATS 43‐88 NPS/001/001 Calders and Grandidge Lincoln, UK
Scanpole Limited ‐ Grimsby, UK
Includes wood poles and foundation baulks
LV Steel Poles BS EN 10025 NPS/001/018 Cobralite – Lancashire, UK
Pole Mounted Switchgear
Air‐Break Switch Disconnectors
ENATS 41‐36Part 2
NPS/001/003
Lucy Switchgear (AX Type) – UKClydesdale (AB Gevea Type) – Manchester, UK
Independent Manual, Hook Stick Operated Type
Pole Mounted Expulsion Fuses, Auto ENATS 41‐36Part 2
NPS/001/004 Linegear 2000 – Gauteng, South Africa Pfisterer – Durban, South Africa
Fuse and Solid Links ENATS 41‐36Part 2 Linegear 2000 – Gauteng, South Africa
Pfisterer ‐ Durban, South Africa
Automatic Sectionalising Link for Pole Mounted Expulsion Fuse
ENATS 41‐36Part 2
NPS/001/004 Mosdorfer CCL (AB Chance) – USA
AK Power Solutions sectionalisers shall be re‐settable with the current and number of shots selectable
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Steelwork and Fittings Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Steelwork Sections
ENATS 43‐95 BS EN 10025
NPS/001/005 Had‐fab – East Lothian, UK
BB Price – Birmingham, UK
Conductor, Pole, Stay and Overhead Line Fittings
ENATS 43‐95 BS EN 10025
NPS/001/005 Mosdorfer CCL – Oakham, UK
BB Price – Birmingham, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Conductors Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Aluminium Conductors BS EN 50182 Alloy, BS215
NPS/001/007 Copper Cable Company ‐ Krakow, Poland Cabelte ‐ Spain
Quintas and Quintas ‐ Esponsende, Portugal Horten – Norway Lumpi ‐ Lintz, Austria Prysmian ‐ Budapest, Hungary Midal – Bahrain
Aerial Bundled Conductor BS 7870 NPS/001/007 Copper Cable Company ‐ Krakow, Poland Cabelte – Spain Tratos ‐ Italy
Compacted Covered Conductor ENA TS 43‐ 122
NPS/001/007 Prysmian ‐ Budapest, Hungary
Copper Conductors HDBC – BS 7884Annealed – BS EN 60228
NPS/001/007 Copper Cable Company ‐ Krakow, Poland Prysmian ‐ Budapest, Hungary
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Insulators Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Pin Insulators ENATS 43‐93 NPS/001/006
Allied – Stoke, UKWT Henley – Belvedere, UK Mosdorfer CCL – Oakham, UK
Glass and Porcelain Disc Insulators ENATS 43‐93 NPS/001/006 Allied – Stoke, UK
WT Henley – Belvedere, UK
Stay Insulators ENATS 43‐93 NPS/001/006 Allied – Stoke, UK
Mosdorfer CCL – Oakham, UK
Composite String Insulators
ENATS 43‐93
NPS/001/006
Allied – Stoke, UK
EB Robosio – Bergamo, Italy Mosdorfer CCL – Oakham, UK
Pfisterer – Durban, South Africa Malters, Switzerland
Surge Protection
Surge Arresters – 11kV and 20kV BS EN 60094 Part 4
NPS/001/008 Ensto UK – Southampton, UK
Siemens – China
Tyco – UK
Mosdorfer CCL – Oakham,
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
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Ground Anchor Termination and Staywire Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Galvanised Stay Wire ENATS 43‐91 NPS/001/013 TE Connectivity ‐ Simel, France
Mosdorfer CCL – Oakham, UK
Grade 1150 required
Augured ‐ Ground Anchor Systems ENATS 43‐91 NPS/001/020 ABC Anchors –Liverpool, UK BB Price – Birmingham, UK
Platypus ‐ Ground Anchor Systems ENATS 43‐91 NPS/001/020 Duckbill – UK Anchor Systems ‐ UK
Aerial Bundled Conductor Fittings Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Aerial Bundled Conductor – IPC Fittings
ENATS 43‐14 NPS/001/023
Sicame Electrical Distribution –Newcastle, UK TE Connectivity ‐ Simel, France Ensto ‐ Estonia.
Aerial Bundled Conductor – Anchor Clamps and Suspension Blocks
ENATS 43‐14 NPS/001/023 Ensto ‐ Estonia
Aerial Bundled Conductor – Service Distribution Box
ENATS 43‐14 NPS/001/023 Lucy Switchgear ‐ Oxford, UK WT Henley – Belvedere, UK
Document reference Northern Powergrid Appendices A for ENA ER G81 - Part 5
Version:- 2.0 Date of Issue:- Sept 2013 Page 33 of 33
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Overhead Line Consumables Item National /
International Standard
Northern Powergrid Technical Specification
Assessed Supplier(s) Additional Comments
Fasteners And Fixings ENATS 43‐96 NPS/001/010
BB Price ‐ Birmingham, UK.
STC ‐ Washington, UK
Alca Fasteners ‐ Birmingham, UK
Fixfirm Ltd – UK
Kebrel Nuts and Bolts – UK
Helical Products ENATS 43‐15 ENATS 43‐91 ENATS 43‐92
NPS/001/002
Preformed Line Products –Andover, UK
Mosdorfer CCL – Oakham, UK
Barbed Wire BS 4102 NPS/001/015 Arcelor Mittal – Sheffield, UK
Triple life type
Compression Fittings and Mechanical Conductor Fittings
ENATS 43‐92 NPS/001/016 Mosdorfer CCL – Oakham, UK Compression fittings shall be
applied with a universal die‐less system