testing earth bonding


Postby chris_on_tour2002 » Mon Apr 28, 2008 3:59 pm

also posted on electrics thread

can anybody tell me the procedure for continuity testing the earth bonding of my copper pipework?

just done some plumbing work in the bathroom - i know for a fact that the pipes are cross bonded throughout the house as i've recently fitted a new combi and put in all new central heating, pipes and all, throughout and fitted the clamps myself. the clamps are only at the boiler, however. as all services, dhw, radiator f&r, gas and cold main all meet at the boiler is this the only place to cross bond?

i used an existing earth lead, (6mm earth cable) from the original system that i took out, to take it to earth. how do i test if this is sound and that it does actually go to earth somewhere?

i have a multimeter, just don't know quite how to use it for this particular type of test.
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Postby Steve the gas » Mon May 05, 2008 8:43 am

First you need 10mm2 earth cable not 6mm2.Also to prove its working you need to do an earth loop impedence test - may need a sparky?
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