This standard specifies the requirements for grounding plugs to be attached by cable to the nozzles of aircraft refuelling tankers. It also covers sockets to be provided in the aircraft for the accommodation of the plugs and the minimum length, minimum diameter, maximum resistance and material of the grounding cable.
IS 7857-1975 history
1976IS 7857-1975 Specification for aircraft fuel nozzle grounding plugs and receptacles