Published 09 Jan 2026
We’d like to welcome our newest addition to the Thorne and Derrick team! Eva will be joining us as a content creator apprentice at our office in Chester-Le-Street. Eva will bring fresh new ideas to all of our social...

Tooling
Main UK Stockists & Distributors of Cable & Installation Tooling
Thorne & Derrick offer from stock a complete range of Cable & Installation Tooling for stripping, preparing, cutting, crimping and spiking low, medium and high voltage power cables including 11kV, 33kV, 66kV and 132kV-400kV polymeric cables.
Thorne & Derrick stock and supply jointing tools to enable the preparation of LV MV HV power cables prior to the installation of Joints, Terminations or Connectors – this includes precision engineered tools manufactured by Alroc to remove outer sheath/jacket, semicon screen (bonded or peelable) and insulation. The use of the correct jointing tools extend the service life of power cable systems and underground distribution networks.
Professional cable preparation carried out by trained Competent Cable Jointers is critical to prevent MV/HV cable termination and joint failures.
Our ranges of Cable & Installation Tooling also combine cutting-edge technology with innovation to provide Cut & Crimp solutions for all types of electrical cables and overhead lines – there is a selection of videos below and UK product demonstrations are available from Klauke and Cembre.
These Video Blogs show how cable preparation is vital for the performance reliability of stability of MV-HV cable joints and terminations – if cables are under prepared using sub-standard tools or basic hand tools then the risk incidence of future cable failure is increased.
More Workplace Electrical Safety info ➡ | Cable Safety | Arc Flash & Electrical Safety

From Substation to Socket | Safe LV HV Cables & Electrical Power Systems Up to 400kV
We provide Tooling & Electrical Equipment to Improve Workplace Safety.

Contact us with your Enquiry.
We protect substation engineers, asset managers, SAPS, cable jointers, overhead linesmen and utility workers with PPE and safety equipment: this includes insulating gloves, voltage detectors, insulating matting and portable earthing to ensure worker safety when carrying out repair and maintenance on LV-HV switchgear, transformers, substations and turbines.
All our Cable Connection & Energisation Accessories including Medium & High Voltage joints, terminations, connectors and cleats are tested to the latest international standards and supporting ranges of professional installation tools are stocked to reduce incident, accident and downtime to plant and people.
Published 09 Jan 2026
We’d like to welcome our newest addition to the Thorne and Derrick team! Eva will be joining us as a content creator apprentice at our office in Chester-Le-Street. Eva will bring fresh new ideas to all of our social...
Published 09 Jan 2026
Insulating Matting Recommendations and Guidance for Electrical Safety Guest Blog From COBA Electrical safety is non-negotiable, especially when working around live switchgear, high-voltage panels, and electrical distribution equipment. One critical but sometimes overlooked safeguard is electrical insulating matting, designed...