Interlocked H.V. Overhead Traction Line
- Ensures correct and safe removal of earths from overhead lines
- Rugged construction and good corrosion resistance
- Tamper-proof, 20 key combinations
- Suitable for corroded rails, steel framework or earthing points
- Suitable for fitting to all common types of running and conductor rails
- Approval Ref. PA05/00944
This equipment is for providing temporary earth bonds between overhead catenary or contact conductors and earthed rail sections or recognized earthing points.
The equipment has been specially enhanced in order to address the potentially fatal procedure of removing the equipment in the incorrect order of use. To ensure that the Line End clamp is removed prior to the Earth End clamp, it incorporates a special key which must be used to remove the Earth End clamp. The tamper-proof lock arrangement is an integral part of both clamps and can provide up to 20 combinations, this is to deter ‘master keys’ being used to fool the system.
The CE63 (J117-NSE) Earth End clamp is a steel fabricated clamp for application to all rial types, steel framework and earthing points. The clamp is fitted with disc springs to ensure secure location. All components are plated to provide adequate protection on site.
Interconnecting Leads are made of 50 mmsq blue multi-stranded aluminum with Arctic-grade PVC insulation. Aluminum palm type compression terminations and clear PVC stress-relieving sleeves are fitted.
The S9BI Line Enc clamp is made from aluminum alloy and the CS5/I clamp from bronze alloy. Both of these employ stainless steel fasteners. These are suitable for application by the type S9D operating socket.
Insulated Operating Poles are glass fibre insulating poles with open weave hand grips bonded to the lower pole section. Available in standard 4 ft (1.22 meter) sections with machined joints to provide rigid assembly by a double sided snap action, spring loaded locking device.
An S9D type light alloy operating socket should be fitted, which supports the clamp during application to the line. The socket is then used to rotate the Line End clamp’s operating screw, to secure to the line.