Hey sponge, excuse me if I talk chit, bl00dy shattered
[quote author=spongebob link=1107728996/0#3 date=1107732869]O.k. not sure I understood it all, but here goes. Storage heater. In addition to it's supply cable which leaves a surface mounted plastic box with a blank face plate attached there was an earth bond to copper pipe. Should this earth bond be extended to a point where it can be connected to a copper pipe or can the earth terminal in the cable connection box be used. [/quote]
What we must do is bond all copper pipes together, and then bond to any earth terminals near by e.g. heater earth point.
Start with you're first copper pipe, bond from this to any other copper pipes and then bond from the last copper pipe to the
earth terminal of light switch or any other 'earth terminals'
see pic for what cross bonding means
Quote: I take it that the taps have to be bonded as they are metal and exposed. Where do you get an earth clamp to attach to the tap tails?
The taps don't get bonded directly, only pipework, no taps of metalic fittings, just the copper pipes
To bond we use an earth clamp that goes around the copper pipe
Quote:What about the shower enclosure? Lights are existing LV downlighters. No CPC
You're downlighter's are class 2, which mean's double insulated, e.g. no earth connection needed, however there should be an earth nearby, perhaps in a terminal block, you should be bonding to this and any other earth terminals including the shower, do this at either the shower or the double pole pull cord for the shower
Quote: believing that electricians were just wire joiners
Very Naive Sponge