Thorne & Derrick service UK and international businesses working on underground cables, overhead lines, substations and electrical construction at LV MV HV & EHV – we distribute the most extensive range of Cable Installation & Electrical Distribution Equipment to the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors.
We are suppliers and distributors for 3M Electrical, ABB, Alroc, AN Wallis, CATU, Cembre, Centriforce, CMP, CSD, Elastimold, Ellis Patents, Emtelle, Euromold, Filoform , Furse, Hauff Technik, Lucy Electric & Zodion, Nexans, Pfisterer, Polypipe, Prysmian, Ripley Tools, Roxtec, Sicame, WT Henley.
Learn more about T&D, The MV HV Electrical Distributors.
Core Product Groups
| LV Cable Joints & Installation Equipment | MV HV Cable Joints & Terminations – Cold Shrink & Heat Shrink |
| MV HV Power Products, Surge Arresters & Bushings | Gas Insulated Switchgear (GIS) Substation Connectors |
| Cable Cleats & Cable Hooks | Push Pull Tools |
| Cable Pulling & Laying Equipment | Underground Cable Protection |
| Cable Duct | Duct Seals |
| Earthing & Lightning Protection | Fuses MV HVÂ |
| Electrical Safety Equipment | Arc Flash Protection & Clothing |
| Cable Cutting & Cable Crimping Tools | Cables LV MV HV |
| Cold Shrink Tubes | Cable Transits |
| Feeder Pillars | Cable Jointers Tools |
| Cold Shrink | Cable Trough |
| Drum Heaters | Hazardous Area Electrical Equipment – Hazardous Area Lighting |
| Surge Counters | Surge Arresters |
| Trace Heating | Waterproof Cable Joints |
MARECHAL P66 | For further information visit High Voltage Connectors, Plugs & Sockets
T&D provide an outstanding service to UK and international customers – we are highly customer responsive and absolutely committed to providing a world-class service.
Multi-million pound stock holding provides complete global supply solutions
Technical support from expert, proactive and friendly team
Stock turnaround with express logistics to all international destinations
Free and fast expert technical support and advice about LV MV HV product ranges
Published 02 Nov 2026
An earth bar connects several earthing and protective bonding conductors at one common point. Most manufacturers use high-conductivity copper because it provides excellent electrical conductivity. Electrical contractors install earth bars in substations, switchrooms, feeder pillars and industrial facilities. As...
Published 02 Nov 2026
An access chamber is an underground structure that provides a designated access point to buried cables, cable ducts and utility networks. Access chambers are installed beneath roads, footpaths, substations, industrial sites and other infrastructure to allow cables to be...
