IEE 18th, 701.415.2 p241 - sup bonding bathroom

[John-]

Thanks for all the responses. Glad to see some science behind it too.

So. According to one document by calculation when using RCDs if greater than 6.66Kohms (Damien's telephone number) it is not classed as an extraneous part. If not using RCDs if greater than 22KOhms not classed as an extraneous part.

So for my scenario (using RCBOs) if the value was between 1,660Ohms and 6,666Ohms i would have to supply a bond to bring it back down to an acceptable resistance (below 1,660Ohms).

@spinlondon Do you have any reference for the NIC doc, i would like to make some notes in my regs book.

Thank you.

John

 

[Deleted member 26818]

Here’s the thread that mentioned it:
Extraneous....Yes or No.... - https://www.electriciansforums.co.uk/threads/extraneous-yes-or-no.16558/