If I treat the conduit as mechanical protection,it would not need earthing?
gkenyon:
This advice is based on real cases of such fixings causing things like the metal frame of paroc and similar stud walls to become "live" - in one case, I understand a plumber was electrocuted as the puddle he was trying to fix the leak which caused it was livened up by the metal stud frame!
Does that need qualifying as to the circuit-breaker type and rating Andy?
Protective devices used for these cables shall be either Type B to BS EN 60898 or Type B RCBO to BS EN 61009-1. The protective devices shall have a maximum let through energy (l2t) of 42000A2s when used with 1.0mm2 or 1.5mm2 cable and 60000 A2s when used with 2.5mm2 or 4.0mm2 cable.
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