High Voltage Substation Earthing Using Copper Earth Tape Conductor
Published 20 May 2020
A National Grid substation is a large installation where 275kV and 400kV overhead power lines or underground cables are switched and where electricity is transformed to 132kV for distribution to surrounding areas.
National Grid own HV electricity transmission network in England and Wales operating throughout Great Britain. The transmission network is made up of approximately 7,200 kilometres (4,470 miles) of overhead line, 1,400 kilometres (870 miles) of underground cable and around 330 substations.
Substations contain electrical equipment to transform the voltage to lower or higher voltages, switching equipment to connect and disconnect circuits, and protection equipment to ensure the network operates safely and reliably.
Thorne & Derrick are approved vendors to National Grid and their electricity framework contractors. We can deliver customised copper earth tape for high voltage substation earthing embossed to National Grid specification.
Bare copper earthing tape is an integral component of all high voltage substation earthing and lightning protection systems – bare copper, LSF, PVC and green/yellow insulated copper earth tapes are available.
âž¡Â The Wallis product range includes earth rods (solid copper, copper bond and stainless steel types), earth bars, copper earth mats, earth clamps and copper earth plates.
Earth Tapes – Bare & Covered Copper Tapes
Thorne & Derrick are a leading distributor of Earthing & Lightning Protection Systems to the UK power utility industry – we can imprint or emboss copper earth tapes with all UK DNO ownership requirements.
Willesden National Grid 275kV Substation
National Grid Substation Copper Earth Tape : Copper Earth Tape 75mm x 6mm embossed and stamped Property of National Grid. 1,000 metres palletised for despatch today for earthing 400kV Elstree to St John’s Wood substation maintenance projects.
Copper Earthing & Lightning Protection – National Grid
T&D consolidated for despatch a £75K purchase order for Earthing & Lightning Protection Products – the 26 pallet consignment including galvanised steel and copper earthing tapes, mats, rods, earth bars and clamps is destined for several National Grid infrastructure projects including North London Reinforcement, London Power Tunnels & Nemo Link.
EARTHING GUIDE
Should you require further information or assistance with working on a bill of materials for your earthing requirements, please do not hesitate to contact T&D. Designers of Earthing & Lightning Protection Systems can benefit from downloading our AN Wallis Handbook – an essential resource to ensure compliance with BS EN 62305 the document covers:
- Design of Structural Lightning Protection (BS EN 62305) – Rolling Sphere, Mesh & Protective Angle
- Design of Roof Termination Network
- Copper Tape & Down Conductors – Calculation & Location
- Foundation Copper Earth Rods & Electrodes
Further Reading
Underground Cable Photo Album 1890-1940 – Western Power Distribution (WPD)
Specialist Distributors: LV, MV & HV Cable Jointing, Substation & Electrical Eqpt
THORNE & DERRICK are national distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Earthing & Electrical Equipment – we service UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.
Contact us for 3M Electrical, ABB, Alroc, AN Wallis, CATU Electrical, Cembre, Centriforce, CMP, CSD, Elastimold, Ellis Patents, Emtelle, Euromold, Filoform , Furse, Lucy Electric & Zodion, Nexans, Pfisterer, Polypipe, Prysmian, Roxtec, Sicame, WT Henley.
