Image courtesy of : Steve Fielder HV/EHV Cable Jointer
Pictured : 138kV HPPT – High Pressure Pipe Type. Connectors are screened and paper taping ready to start.
One of three cables – pin pressed, lead plugged and taped.
For pudding – just one more core to go …
Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.
Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.
15,000+ Subscribers. ➡ 
Image: Steve Fielder (HV/EHV Cable Jointer)
Location: Washington DC, USA
Pictured: 40kV 3 Core PILC G&W Gas Straight Joint Using Sweated Weak Back Ferrules – the 40kV M/P gas cable has been in service since 1949.
The 40kV cable joint is shown stepped down and ready for tapping.
Pictured: 40kV 3 Core PILC MP Gas Cable Fault – cable pulling 380ft between manholes then 2off G&W 40kV 3 core gas joints to install.
Cable Splices and Cable Joints
G&W offers a variety of transmission cable accessories for extruded dielectric cable systems. Cable terminations are available for outdoor applications to 230kV and include porcelain or composite insulator options and premolded designs. Gas insulated substation designs are available to 230kV. Transition cable splices and cable joints are available to 138kV and include premolded designs. All cable terminations and cable joints incorporate built-in stress control and dielectric fluid. Dry type designs are also available for maximum ease of installation.
PILC Cable Splices
For cable systems through to 35kV – PILC cable splice kits are available for many 1/C and 3/C extruded dielectric and paper insulated lead cables up to 34.5kV with conductor sizes from #2 AWG to 2000 kcmil (35mm2– 1000mm2). The PILC cable splices, manufactured by G&W, are conveniently packaged and shipped complete with the correct grade material required for making the splice. Protective splice boxes and insulating sleeves are available.
G&W splice kits for paper or varnished cambric insulated lead covered cables, shielded or unshielded are available.
Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.
Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.
15,000+ Subscribers. ➡
Images Courtesy of: John Penny – HV Cable Jointer at BELAC Group Ltd
Pictured: Pfisterer Connex Size 3 (XL) Terminating 33kV Cables Onto Tertiary Winding of 400kV/275kV Transformer Grid
Thorne & Derrick are Main Distributors & Stockists for the Pfisterer range of Medium Voltage Power Products including Connex Plugs, Cable Jointing Tools, Sicon Connectors, Surge Arresters and Electrical Safety Equipment.
Thorne & Derrick Specialist Electrical Distributor
Established since 1985, T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Pulling & Installation Equipment – contact us today for a competitive quotation.
Key Products : MV Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Jointing Tools, Feeder Pillars, Cable Duct, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.
Distributors for : 3M, Pfisterer, Nexans Euromold, Elastimold, Catu, Roxtec, Emtelle, Centriforce, Lucy Zodion, Alroc, Hivotec, Cembre, Prysmian, Ellis Patents, ABB & Furse.
Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.
Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.
15,000+ Subscribers. ➡
Image Courtesy of : Glen Cambri (Technical Services Engineer at 3M Philippines Inc).
Pictured : 3M Silicone Wet Type Cable Terminations 115kV
Thorne & Derrick stock an extensive range of 11kV-33kV 3M Electrical Cold Shrink Joints & Cable Terminations for the jointing, terminating and abandonment of MV medium voltage power cables.
Electrical Products
Thorne & Derrick are 3M UK’s largest stockist of their range of Scotchcast and Cold Shrink cable joints, terminations and abandonment kits for industrial and hazardous area installations.
Description • Self-supporting, outdoor cable termination with silicone insulator.
Applications • Conductor size up to 2,000 kcmil (1,200sqmm) • Can accommodate a variety of pollution classes and lengths • Maximum installation angle of 30°.
Features • One-piece pre-molded silicone stress cone • Light-weight construction, approximately 1/3 the weight of most porcelain high voltage cable terminations • Easier handling, transportation and installation than porcelain insulator • Hydrophobic silicone materials provide excellent environmental performance • Smooth surface enables self-cleaning properties • Less sensitive to earthquakes, vibrations and thermal variations • Internal shear bolt connection eliminates need for crimp-type connections.
Further Reading
Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.
Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.
15,000+ Subscribers. ➡
A. N. Wallis & Co. Ltd announce that they are formally linking up with the ECA – the UK’s leading trade association for electrotechnical and engineering services businesses.
A. N. Wallis will become an ECA Consultant & Specifier Associate, providing them with additional engagement opportunities with the trade body and its members.
Earthing and lightning protection manufactured by AN Wallis from high conductivity copper to BS EN 13601 is installed to protect buildings, overhead lines and medium/high voltage substations (MV-HV) against potentially catastrophic damage that can be caused by a lightning strike resulting in short circuiting.
The Wallis product range includes copper earth rods (solid copper, copper bond and stainless steel types), earth bars, copper tape, earth clamps and aluminium tapes.
ECA Director of Member Services Helen Atkinson commented:
“We are delighted to welcome A. N. Wallis as the ECA’s newest Consultant & Specifier Associate. We look forward to working closely with A. N. Wallis & Co. Ltd over the coming period to maximise commercial opportunities and industry collaboration.
“A. N. Wallis & Co. Ltd will now have access to an unbeatable package of resources, and the ability to further engage with the ECA’s membership base, which includes many leading electrotechnical and engineering services businesses.”
The ECA has almost 3,000 members, who undertake a range of electrotechnical design, installation, inspection, testing, monitoring and maintenance work. ECA members range from SME electrical firms to nationwide engineering services businesses, with a combined turnover of over £6 billion annually.
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, substation, overhead line and the installation of medium/high voltage cable joints and terminations at LV, 11kV, 33kV and HV.
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.
Published 18 Mar 2026
INDUSTRIAL LABEL PRINTING SOLUTIONS When clear, durable and professional identification is required across control panels, cable systems, production facilities and industrial installations, print quality, reliability and ease of use are critical. Cembre industrial label printers are designed to support...
Published 18 Mar 2026
HIGH VOLTAGE JUNCTION BOXES & ENCLOSURES When high-voltage power distribution and cable termination are required, safety, enclosure integrity and long-term reliability are critical. HV Junction Boxes and Electrical Enclosures manufactured by Abtech are engineered for the safe distribution, cable termination and protection...
