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Scottish Power Energy Networks Approved | Cable Joints, Terminations & Electrical Equipment LV HV

Scottish Power Energy Networks SP

SP Energy Networks is part of the Scottish Power Group of companies offering safe and reliable electricity supply to all customers including providing power to 1.5 million customers in Merseyside, Cheshire, North Wales and North Shropshire as well as 2 million in central and Southern Scotland.

SPEN have 30,000 substations (1 for every 100 customers), 40,000km overhead lines and 65,000km underground cables – operating in three of the UK’s largest cities (Liverpool, Glasgow & Edinburgh) accounting for 1.6m (43%) of our customers, as well as delivering LV-HV power to significant rural areas (North Wales, Scottish Borders and Dumfries & Galloway).

Employing around 2,600 people in 17 locations in the South of Scotland and 17 locations in England and Wales.

Scottish Power Energy Networks make electricity generated from power stations, windfarms and various other utilities and transport it through our vast transmission network by underground cables and overhead lines.

Thorne & Derrick are Approved Vendors of Scottish Power Energy Networks Approved Materials List & Assessed Products to enable the cable jointing, termination, distribution and installation of LV, MV (11kV-33kV) & HV cables onto SPEN cable network from manufacturers including:

➡ Contact us to discuss your requirements for Scottish Power Energy Networks LV, MV & HV Cable Installation, Jointing, Termination, Substation & Electrical Equipment including the following LV-HV Product Categories – our internal SPEN commodity code database is constantly updated with new Scottish Power Energy Networks products.

Nexans Euromold, Pfisterer & Sicame

Thorne & Derrick distribute SPEN Approved cable joints, terminations and connectors for use on 33kV cable networks including pole terminations and indoor switchgear connectors for polymeric (XLPE) insulation single core cables.

SCOTTISH POWER cables, joints & terminations 11kv 33kv

Thorne & Derrick distribute DNO approved MV HV Cables including 11kV 33kV – this includes single and 3 core XLPE, EPR and Triplex cables plus suitable cable joints, terminations and connectors in heat shrink, cold shrink, cold applied and plug-in technology.

Cable Pulling & Laying Equipment LV HV

T&D supply Utilities & Approved Contractors with cable pulling products including cable rollers, cable socks and drum lifting jacks to enable the installation of low voltage and high voltage cables intro trench or duct: this includes single core, 3 core and Triplex 11kV/33kV power cables and LV waveform, mains and service cables.

HV Joints Terminations Connectors – 3M Pfisterer Nexans Euromold Elastimold

UK DNO’s

T&D are Specialist Distributors to the UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and High Voltage Jointing Contractors of an extensive range of Cable Joints, Substation, Distribution, Tooling & Installation Equipment approved by the utilities:

• Northern Powergrid – NPG
• Electricity North West – ENW
• ESB Networks
• NIE – Northern Ireland Electricity Networks
• SSE – Scottish & Southern Energy Networks
• UKPN – UK Power Networks
• WPD – Western Power Distribution 

JOINT ♦ TERMINATE ♦ CONNECT ♦ GLAND ♦ CLEAT ♦ CRIMP ♦ DUCT ♦ SEAL ♦ REPAIR ♦ CABLE ♦ SPLICE ♦ INSULATE 

Northern Ireland Electricity Networks Approved | Cable Joints, Terminations & Electrical Equipment LV HV

Northern Ireland Electricity Networks

Northern Ireland Electricity Networks (NIE Networks) own the electricity transmission and distribution network and operates the electricity distribution network which transports electricity to over 860,000 customers – connecting 6,000 new homes, businesses and farms to the power network each year.

NIE network consists of 2,200 kilometers of transmission network, 47,000 kilometers of distribution network and 300 major substations at LV, MV and HV.

Employing around 1,200 people and investing around £100 million in the electrical network each year.

Acquired by ESB Networks in December 2010, NIE Networks remains an autonomous organisation with its own board and management teams and separate regulation via the Utility Regulator

Thorne & Derrick are Approved Vendors of Northern Ireland Electricity Networks Approved Materials List & Assessed Products to enable the cable jointing, termination, distribution and installation of LV, MV (11kV-33kV) & HV cables onto NIE cable network from manufacturers including:

➡ Contact us to discuss your requirements for Northern Ireland Electricity Networks LV, MV & HV Cable Installation, Jointing, Termination, Substation & Electrical Equipment including the following LV-HV Product Categories – our internal NIE commodity code database is constantly updated with new Northern Ireland Electricity Networks products.

nIE cables, joints & terminations 11kv 33kv

Thorne & Derrick distribute DNO approved MV HV Cables including 11kV 33kV – this includes single and 3 core XLPE, EPR and Triplex cables plus suitable cable joints, cable cleats, terminations and connectors in heat shrink, cold shrink, cold applied and plug-in technology.

Cable Pulling & Laying Equipment LV HV

T&D supply Utilities & Approved Contractors with cable pulling products including cable rollers, cable socks and drum lifting jacks to enable the installation of low voltage and high voltage cables intro trench or duct: this includes single core, 3 core and Triplex 11kV/33kV power cables and LV waveform, mains and service cables.

HV Joints Terminations Connectors – 3M Pfisterer Nexans Euromold Elastimold

UK DNO’s

T&D are Specialist Distributors to the UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and High Voltage Jointing Contractors of an extensive range of Cable Joints, Substation, Distribution, Tooling & Installation Equipment approved by the utilities:

• Northern Powergrid – NPG
• Electricity North West – ENW
• ESB Networks
• SPEN – Scottish Power Energy Networks
• SSE – Scottish & Southern Energy Networks
• UKPN – UK Power Networks
• WPD – Western Power Distribution 

JOINT ♦ TERMINATE ♦ CONNECT ♦ GLAND ♦ CLEAT ♦ CRIMP ♦ DUCT ♦ SEAL ♦ REPAIR ♦ CABLE ♦ SPLICE ♦ INSULATE

ESB Networks Approved | Cable Joints, Terminations & Electrical Equipment LV HV

ESB Networks

ESB Networks distribute low, medium and high voltage electricity to 2.3 million domestic, commercial and industrial customers in Ireland in a safe and efficient manner every day, every hour and every minute. The LV-HV electricity distribution network includes all distribution stations, overhead electricity lines, poles and underground cables.

ESB through building their Smart Network have significantly increased the electrical network reliability, resulting in a 42% reduction in power outages in 2014.

The total length of the LV-HV overhead lines and underground cables in the Transmission and Distribution systems managed by ESB Networks is 177.500 km.

In 2015 ESB Networks connected with 17,012 new customers making a total of 2,253,000 customer connections to the distribution systems.

Thorne & Derrick are Approved Vendors of ESB Networks Approved Materials List & Assessed Products to enable the cable jointing, termination, distribution and installation of LV, MV (11kV-33kV) & HV cables onto ESB cable network from manufacturers including:

➡ Contact us to discuss your requirements for ESB Networks LV, MV & HV Cable Installation, Jointing, Termination, Substation & Electrical Equipment including the following LV-HV Product Categories – our internal ESB commodity code database is constantly updated with new ESB Networks products.

ESB cables, joints & terminations 11kv 33kv

Thorne & Derrick distribute DNO approved MV HV Cables including 11kV 33kV – this includes single and 3 core XLPE, EPR and Triplex cables plus suitable cable joints, cable cleats, terminations and connectors in heat shrink, cold shrink, cold applied and plug-in technology.

Cable Pulling & Laying Equipment LV HV

T&D supply Utilities & Approved Contractors with cable pulling products including cable rollers, cable socks and drum lifting jacks to enable the installation of low voltage and high voltage cables intro trench or duct: this includes single core, 3 core and Triplex 11kV/33kV power cables and LV waveform, mains and service cables.

HV Joints Terminations Connectors – 3M Pfisterer Nexans Euromold Elastimold

UK DNO’s

T&D are Specialist Distributors to the UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and High Voltage Jointing Contractors of an extensive range of Cable Joints, Substation, Distribution, Tooling & Installation Equipment approved by the utilities:

• Northern Powergrid – NPG
• Electricity North West – ENW
• NIE – Northern Ireland Electricity Networks
• SPEN – Scottish Power Energy Networks
• SSE – Scottish & Southern Energy Networks
• UKPN – UK Power Networks
• WPD – Western Power Distribution 

JOINT ♦ TERMINATE ♦ CONNECT ♦ GLAND ♦ CLEAT ♦ CRIMP ♦ DUCT ♦ SEAL ♦ REPAIR ♦ CABLE ♦ SPLICE ♦ INSULATE

Electricity North West Approved | Cable Joints, Terminations & Electrical Equipment LV HV

Electricity North West ENW

Electricity North West owns, operates and maintains the North West’s electricity distribution network, connecting 2.4 million properties and more than 5 million people in the region to the National Grid.

ENW own one of the original 14 regulated electricity distribution networks in England, Wales and Scotland and are regulated by Ofgem.

The electricity network covers a diverse range of terrain, from isolated farms in rural areas such as Cumbria, to areas of heavy industry and urban populations including Manchester.

Delivering more than 23 terawatt hours of electricity each year to customers in the North West – the equivalent of 2.7 million electric heaters being switched on for a whole year. The LV-HV electrical network consists of around 13,000 km of overhead lines, over 44,000 km of underground cables, almost 86,000 items of LV-HV switchgear and more than 34,000 transformers.

Thorne & Derrick are Approved Vendors of Electricity North West Approved Materials List & Assessed Products to enable the cable jointing, termination, distribution and installation of LV, MV (11kV-33kV) & HV cables onto ENW cable network from manufacturers including:

➡ Contact us to discuss your requirements for Electricity North West LV, MV & HV Cable Installation, Jointing, Termination, Substation & Electrical Equipment including the following LV-HV Product Categories – our internal ENW commodity code database is constantly updated with new Electricity North West products.

ENW cables, joints & terminations 11kv 33kv

Thorne & Derrick distribute DNO approved MV HV Cables including 11kV 33kV – this includes single and 3 core XLPE, EPR and Triplex cables plus suitable cable joints, cable cleats, terminations and connectors in heat shrink, cold shrink, cold applied and plug-in technology.

Cable Pulling & Laying Equipment LV HV

T&D supply Utilities & Approved Contractors with cable pulling products including cable rollers, cable socks and drum lifting jacks to enable the installation of low voltage and high voltage cables intro trench or duct: this includes single core, 3 core and Triplex 11kV/33kV power cables and LV waveform, mains and service cables.

HV Joints Terminations Connectors – 3M Pfisterer Nexans Euromold Elastimold

UK DNO’s

T&D are Specialist Distributors to the UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and High Voltage Jointing Contractors of an extensive range of Cable Joints, Substation, Distribution, Tooling & Installation Equipment approved by the utilities:

• Northern Powergrid – NPG
• ESB Networks
• NIE – Northern Ireland Electricity Networks
• SPEN – Scottish Power Energy Networks
• SSE – Scottish & Southern Energy Networks
• UKPN – UK Power Networks
• WPD – Western Power Distribution 

JOINT ♦ TERMINATE ♦ CONNECT ♦ GLAND ♦ CLEAT ♦ CRIMP ♦ DUCT ♦ SEAL ♦ REPAIR ♦ CABLE ♦ SPLICE ♦ INSULATE

Trefoil Cables – Sealing Ducts & Cleating Trefoil Cables Up To 33kV

by Chris Dodds T&D - estimated reading time 5 minutes

Trefoil Cables

Before we demonstrate an effective duct seal solution for trefoil cables let us first define trefoil and cover the importance of selecting correct cable cleats to prevent short-circuit inflicted damage to power systems and electrical infrastructure.

Cable installations for 3 phase power installations, whether LV or MV (600/1000 Volts to 11kV/33kV) utilise single conductor cables typically in flat or trefoil cables formation – trefoil cable cleats are used to restrain 3 single core cables installed in the “shamrock” style formation, commonly referred to as trefoil.

Where a 3 phase cable system design is based on trefoil cables formation The 17th Edition Wiring Regulations (BS7671) can be consulted to provide current ratings and voltage drop values for the installation.

Trefoil cable formation refers to the installed method for low, medium and high voltage power cables where three single core (phases) distribute the electricity supply rather than a single 3 core cable cable.

Typically, at low voltage (LV) this would be single core XLPE/AWA armoured power BS5467 cables or at medium/high voltage (11kV/33kV) polymeric (XLPE or EPR insulated) single core BS6622 cables.

See more information about Trefoil Cleats

MV HV Single Core – 11kV Single Core Conductor Cables BS6622

Depending upon the short circuit calculation according to IEC 61914 the appropriately fault-rated cable cleats should be used to provide cable restraint depending on whether the LV, MV or HV power cable system generates short, medium or high short circuit levels.

According to the installation application and environmental conditions trefoil cleats are available in a selection of materials including nylon, stainless steel and aluminium.

View the complete range: Ellis Patents Cable Cleats

Clearly cleating cables is essential, as is effective sealing of cable ducts to prevent flood damage to substations and buildings or the spread of potentially flammable gases.

Sealing Trefoil Cables In Substation Ducts

Single core 11kV-33kV cables in “triplex formation” according to British Standard BS7870 require effective sealing of cable duct entries against water, gas and fire on medium/high voltage substations as well as cleating to protect against short circuit situations. Triplex cables are characterised by the appearance of 3 core cables twisted around each other.

MV HV Triplex – 11kV Triplex Cables 3 Core Conductor Cables BS7870

Trefoil cable arrangements entering substation ducts can be difficult to seal using traditional mastic or inflatable cable duct sealing systems, however the FiloSeal+HD duct sealing system effectively seals single, trefoil or multiple cables in duct. The single core cables are carefully separated and supported using the FiloSeal+HD hexagonal tubes – note the central positioning of the hexagonal tubes to establish the required HV cable separation and allow maximum flow of the duct sealant into the trefoil cable formation.

The hexagons separating the pictured 11kV cables must have the smaller hexagonal tubes nested in the large one to create additional strength.

Sealing Cable Ducts With Single, Trefoil & Multiple Cables | LV MV HV 11kV 33kV

Where the cable ducts are located in a designated hazardous area according to the ATEX Directive we can provide expert advice and product recommendations for sealing cables in potentially explosive atmospheres.

Filoform  – Water, Gas & Fire Protection | Duct Seals In Industrial & Hazardous Areas

Should you require any advice to enable to selection of duct seals for industrial or hazardous area locations, call us | LV MV HV | 11kV 33kV Cable Joints & Terminations

Thorne & Derrick International

Since 1985 Thorne & Derrick based in the UK have been specialist distributors of LV, MV & HV Cable Installation, Jointing, Substation, Arc Flash Clothing & Electrical Safety Equipment – customers include UK and worldwide contractors, specifiers, traders and end-users involved in cable installations, cable jointing, substation, overhead line and electrical construction at Low, Medium & High Voltages.

We are specialist stockists and distributors of 11kV-33kV Cable Joints, Terminations & Connectors from manufacturers including 3M, Pfisterer, Prysmian and Nexans Euromold in a selection of jointing technologies including heat shrink, cold shrink and push-on.

MV HV | Medium & High Voltage Power Products, Tools, Cables & Electrical Equipment