Follows on from part 1 of 2, previous post.....
Clause 9.12.1 of Guidance note 7 states:
However it also states:
From the below diagram. I have added in red text, where I have interpreted a typical example of where the 0.7 ohm maximum resistance has to be applied. As part (c) of the clause states in general a in general a value of 0.35 ohm can
be expected between the EBB and the earth terminal of any socket-outlet (or fixed equipment) and any exposed-conductive-part and/or extraneous-conductive-part.
For sizing of the conductors between the equipotential bonding bar (EBB) and the of bonded items, (example highlighted in pink in image below) - what should the maximum resistance be?
