paulh53 said:sasb2003 said:or where it squeezes through a 16mm hole i drilled for it to get through a RSG (for all of 5-10 mm)??
Another point is, Any steel girder which has cables running through it, Or very close to it, Should be bonded to the main earth terminal using a minimum 10mm2 earth cable,
surely its the cuircuit earth that it should be connected to (just like metal conduit)