Blog

G&W Gas Straight Joint (40kV 3 Core PILC)

August 17th, 2020

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.

Gas Straight Joint 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.

G&W Cable Accessories for

Extruded Dielectric Cable

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.

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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.

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Pfisterer Connex Size 3 (XL) Terminating 33kV Cables Onto Tertiary Winding of 400/275kV Transformer Grid

August 17th, 2020

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

Pfisterer Connex Size 3 (XL) Terminating 33kV Cables Onto Tertiary Winding of 400/275kV 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.

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3M Silicone Wet Type Cable Terminations 115kV

August 17th, 2020

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.

3M Silicone Wet Type Cable Terminations 115kV

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

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AN Wallis Earthing & Lightning Protection | ECA Consultant & Specifier Associate

August 17th, 2020

Earth Tapes Earth Rods Earth Bars - AN Wallis

AN Wallis Earthing

& Lightning Protection

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

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.