haptism
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Hi all, have a question about an earth marshaling point. Just looked at a building where there is no bonding present at the incoming water stop cock (although a bond has been made somewhere, from a sub CU).
If i put a clamp on the incoming water is it acceptable to run a cable to earth bar of a sub CU, so long as total resistance back to the MET (via the sub cable) is within 0.05 ohms ?
If I can do this is the CU's earth bar classed as a mashalling point ?, or does a marshalling point have to be an actual earth block ?
Thanks
If i put a clamp on the incoming water is it acceptable to run a cable to earth bar of a sub CU, so long as total resistance back to the MET (via the sub cable) is within 0.05 ohms ?
If I can do this is the CU's earth bar classed as a mashalling point ?, or does a marshalling point have to be an actual earth block ?
Thanks