Earth end clamps for application to clean and dirty copper or aluminium strip. Substation earth clamps tested to 17.5 kA for 2 secs. T&D UK distribute an extensive range of Portable Earthing Equipment for use on overhead lines and substations at both transmission and distribution voltages, including earth end clamps and live end clamps - this includes earth clamps for 11kV, 33kV, 66kV, 132kV, 275kV and 400kV substation and overhead line distribution earthing. Portable earth kits are available for 132kV (5000 MVA Fault Level) and 275kV (1500 MVA Fault Level) high voltage substation earthing. P&B Weir Electrical range of Extra High Voltage, High Voltage and Medium Voltage Earthing Equipment has been designed and developed to provide portable earthing on outdoor high voltage substations, overhead transmission lines and distribution lines during maintenance or erection. Designed to provide safe and secure high voltage clamping where connections are to be made to dirty or heavily oxidised copper/aluminium busbars, stubs or stranded conductors. Clamps, operating poles, sockets and cables have safely withstood their respective mechanical type tests and short time current type tests as specified in relevant standards. P&B Weir Electrical design, manufacture and supply a broad range of Portable Earthing Equipment including, Earth End Clamps, Line End Clamps, Operating Poles, Operating Sockets, Pole Heads, Flexible Cable Assemblies, Tree Pruning equipment, General Purpose Earthing Clamps and Carrying Bags. http://www.cablejoints.co.uk/sub-product-details/portable-earthing-end-clamps-earth-clamps-overhead-line/substation-earth-end-clamp-ce20-esi-e1-hv