P&B Weir Electrical is a UK-based company that designs and manufactures portable earthing equipment for electrical substations and overhead lines. They maintain a high-quality ISO 9001:2008 certified system. Their range of substation portable earthing equipment is suitable for temporary earthing of conductors from 66kV to 400kV and meets UK technical specifications. The spring-loaded earth end clamps are precision manufactured from robust aluminum and stainless steel to provide a good contact without needing excessive force.

1. P&B Weir Electrical, Unit 1, L eld Way, L eld Ind. Est., Corsham, Wiltshire, SN13 9SW, UK
T: 0044 (0)1225 811 449 F: 0044 (0)1225 810 909 E: weir@pbsigroup.com W: www.pbsigroup.com
PBSI Group Limited Registered O ce, Belle Vue Works, Boundary Street, Manchester, M12 5NG Company No. 2030212 Cardi
P&B Weir Electrical maintains a high
quality system in accordance with
ISO 9001:2008 which is fully inspected
• Solid construction for extended service
• Proven service record used by ESI for over 40 years
• Light weight and good corrosion resistance
P&B Weir Electrical design and manufacture a range of products,
including the following:
• Portable Earthing Equipment for EHV sub station and overhead
line applications
• Gas and oil operated‘Buchholz’transformer protection relays
• Electrical Instruments and Test Equipment
P&B Weir Electrical is a UK owned and based company providing leading technology electrical
system solutions to Industrial and Utility customers worldwide.
The range of substation portable earthing equipment is suitable for temporary earthing within the
range of conductors 66kv to 400kV.
T
ENA technical specification 41/21. This includes the Earth End Clamps which are
precision manufactured from a robust aluminium casting with stainless steel fittings.
he P&B Weir substation portable earthing equipment range is designed to meet
The sprung loaded feature of all types makes them suitable for application by hand
to copper or aluminium earth bars in any natural condition.
of no
The spring loaded feature of all types makes them suitable for application by hand
rmal strength is necessary to achieve a good contact and tightness.
Sprung loaded clamps should be tightened down until the spring is fully
compressed but not overtightened. Earth end clamps should be fastened securely
in place before any attempt is made to secure the line end clamp.
Clamps should be inspected at intervals and prior to each application.
All clamps should operate freely and moving parts should be lightly
lubricated, springs should be protected by heavy grease and
contact faces should be clean.
Substation Earthing
Earth End Clamps
P&B Weir Electrical Products Quality Assurance
CE20
CE20/2
CE21
V2