P&B Weir Electrical design and manufacture a large range of Substation Portable Earthing clamps for many applications.
The design of all line end clamps is such that once hooked over the bus bar they become self- supporting whilst the operating screw is tightened or loosened.
Substation Portable Earthing clamps should be inspected at regular 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.
Further technical details:[table]
Clamp|Busbar range|Short circuit rating|Max. number of leads
CE22A/ESI-L1| 10mm-38mm |17.5kA for 2 secs |1 lead
CE22 A+B| 19mm-76mm |17.5kA for 2 secs |1 lead
CE25| 35mm-75mm |38kA for 2 secs |2 leads
CE22B/ESI-L2| 37mm-76mm |17.5kA for 2 secs |1 lead
CE22C/ESI-L3| 60mm-90mm |17.5kA for 2 secs |1 lead
CE15 | 90mm |36.5kA for 2 secs |2 leads
CE27| 101.6mm |17.5kA for 2 secs |2 leads
CE16/5/ESI-L4| 127mm only |50kA for 3 secs |3 leads
CE16/5.5/ESI-L5| 140mm only |50kA for 3 secs |3 leads
CE51| 140mm-160 mm |38kA for 2 secs |2 leads
CE50| 190mm-200mm |38kA for 2 secs |2 leads
CE71| 220-250mm |17.5kA for 2 secs |1 lead
P&B Weir Electrical is a globally recognised designer, manufacturer and supplier of temporary portable earthing, voltage detectors and Buchholz Relays.
With a heritage spanning over eighty years, and world class experience in equipment designed for the safe maintenance of power systems, P&B Weir Electrical provide customers with high quality service, reliable solutions and technical expertise.