A Century of Excellence in Portable Earthing Solutions
April 29, 2025
A Century of Excellence in Portable Earthing Solutions PENTA, formerly
Light and flexible. Available in any lengths on request. Thoroughly tested and approved to ENA 41-21.
PENTA can supply Aluflex Leads in any required length, in a wide range of sizes including specifically for Substation use 150sqmm & 50sqmm according to ENA specification 41-21. The flexible aluminium Earth lead comes with tested and approved compression terminations and stress support springs/sleeves.
PENTA Aluflex Leads are used for connecting between a Line End clamp and an Earth End clamp. For use in Substations, Portable Primary Earths always employ 150sqmm Aluflex cables with a transparent pvc sheath. Field Equipment Earths are utilising 50sqmm, Arctic orange Aluflex leads, 50sqmm exact leads are used for the control of induced voltages.
Leads are also available in blue and green, solid, opaque or semi-transparent coloured pvc sheaths for special applications on request.
Portable Primary Earth leads following the ENA Technical Specification 41-21, 150sqmm Aluflex with clear pvc sheathing. They are fitted with PB150T terminations and stress-relieving springs to reduce flexing, which would otherwise create work hardening of the cable between the terminations and the cable junction.
The Aluflex Leads are carefully manufactured and tested rigorously throughout manufacturing to ensure quality and performance. Terminations are made from specially milled and certified material, and precision machined.
Leads for Field Earths generally use two types of terminations. One end is PB150T, which is suitable for the CE20 Clamp to connect to the Substation Earth Tape, whereas the other is a standard PB50 Palm Termination with a 13.5mm hole. Where a CE20 Earth End clamp is not fitted, a lead having two PB50 palm terminations may be used.
PENTA is a globally recognised designer, manufacturer and supplier of temporary portable earthing, voltage detectors, Buchholz relays and electrical safety products.
With a heritage spanning over eighty years, and world-class experience in equipment designed for the safe maintenance of power systems, PENTA provides customers with high-quality service, reliable solutions and technical expertise.
Get in touch with one of the team
P&B WEIR ELECTRICAL LTD
Unit 1, Leafield Way, Leafield Ind. Est. Corsham, Wiltshire,
SN13 9SW
A Century of Excellence in Portable Earthing Solutions PENTA, formerly
VISARC Helmet: The Future of Customisable Head Protection PENTA proudly
P&B Weir Electrical Ltd
Unit 1, Leafield Way, Leafield Ind. Est. Corsham, Wiltshire, SN13 9SW
© PENTA 2023.
Registered Company Number: 10527362
VAT Number : GB 289 988 694
Registered in England & Wales
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