PENTA UKI Introduces a High-Performance Unipolar Voltage Detector
PENTA UKI Introduces a High-Performance Unipolar Voltage Detector The UNITAG
Suitable for ‘Flat-Bottomed’ and ‘Bull-Head’ rail. Applied by hand and suitable for corroded rail.
Home » Rail Earthing » J117 Rail Clamp
The PENTA P&B J117 rail clamps or G Clamp is designed for fitting to all types of rail in everyday use throughout the UK. The clamp is ruggedly constructed from steel which is zinc galvanised to provide protection from site atmospheres. As well-being used on Long Blue Earths, the J117 clamp is also fitted to the short-circuiting Strap.
The PENTA P&B J117 rail clamp contact arrangement allows for the use upon both ‘Flat-Bottomed’ and ‘Bull-Head’ rail types. The body has an insulating shield fitted to prevent welding to the rail, should the clamp be subjected to a fault current.
A secure location upon the foot of both ‘flat-bottomed’ and ‘bull-head’ rail types is provided by a hardened tip above the rail and a grooved block beneath the rail. The hardened tip fits into the operating screw with an insulating bush to ensure that the correct contact path is made.
The grooved block fits directly on top of the copper busbar, ensuring a very low contact resistance path. The busbar sits upon a stack of disc spring washers, which should be fully compressed when the clamp is applied. These washers apply a pre-loaded pressure upon the rail to maintain firm contact through changing weather climates, whilst maintaining contact pressure should the clamp be subjected to fault current.
The operating screw is rotated by a ‘tommy bar’ which is free to slide within the hole in the head of the operating screw. The tommy bar is retained at each end to prevent removal. The clamp is suitable for fitting via either 12mm or 1/2″fasteners in the busbar.
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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
PENTA UKI Introduces a High-Performance Unipolar Voltage Detector The UNITAG
13th Sep 2024 Revolutionary Technology Enhances Rail Infrastructure Safety and
P&B Weir Electrical Ltd
Unit 1, Leafield Way, Leafield Ind. Est. Corsham, Wiltshire, SN13 9SW
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Registered Company Number: 10527362
VAT Number : GB 289 988 694
Registered in England & Wales
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