Prior to having my electrics checked out I have been told that I need to put an earthing bond on my metal bath, towel rail, lights and pipework. Can you tell me in simple terms, the size of conduit to order
1.5mm2
2.5mm2
4.0mm2
Leaning towards the 4.0 is this correct?
1.5mm2
2.5mm2
4.0mm2
Leaning towards the 4.0 is this correct?