Thorne & Derrick’s POWER Blog is regularly updated with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.
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We focus on Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV
We provide guidance and technical support for the installation of LV, MV & HV Cable Joints, Terminations, Substation & Electrical Equipment from our Key Suppliers including:
| 3M | CMP | Ellis Patents |
| Nexans Euromold | Elastimold | Pfisterer |
| Prysmian | Alroc | CSD |
| Roxtec | CATU Electrical | Cembre |
| Lucy Zodion | ABB | Emtelle |
With Photo Blog contributions from our social network of utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.
JOINT ♦ TERMINATE ♦ CONNECT ♦ GLAND ♦ CLEAT ♦ CRIMP ♦ DUCT ♦ SEAL ♦ REPAIR ♦ CABLE ♦ SPLICE ♦ INSULATE
Published 02 Nov 2026
An access chamber is an underground structure that provides access to buried cables, cable ducts and utility networks. These chambers allow contractors to install, inspect and maintain cables without excavating the entire underground route. Common installation locations include roads, footpaths, substations and industrial facilities. In addition, many telecommunications and...
Published 02 Nov 2026
Underground cable ducts become blocked when soil, sand, silt, construction debris or other materials obstruct the cable route, or when the duct itself becomes damaged, compressed or displaced. These obstructions can prevent cable installation, increase pulling tension and potentially damage the outer sheath of LV, MV and HV power...
Published 02 Nov 2026
Single-eye and double-eye cable pulling socks are wire mesh grips used to establish a pulling connection with electrical cables, conductors and other cylindrical products during installation. Although both grip types use a flexible woven lattice to transfer pulling force, they differ in their attachment configuration, positioning options and suitability...
Published 02 Nov 2026
Underground cable burial depth is the distance below ground level at which an electrical cable or cable duct is installed to reduce the risk of mechanical damage and provide suitable protection throughout its operating life. In the UK, the required depth depends on the installation location, cable voltage, ground...
Published 16 Oct 2026
Underground Cable Access Chambers: Design & Installation Guide Underground cable access chambers are below-ground structures that provide access to cable ducts and underground utility networks for cable installation, pulling, inspection, maintenance and future network modifications. They are commonly incorporated into power distribution, telecommunications, fibre optic, highways and infrastructure projects...
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