I should have started a new paragraph, sorry for confusion. I meant that that if you altered the earthing arrangement, that the armour and third core must be kept isolated at the garage end, but connected at the house end.
To carry the eq zone over, you need the third core/armour, and this must be sized taking into account the requirements for main eq bonding aswell.
I have corrected my post.
To carry the eq zone over, you need the third core/armour, and this must be sized taking into account the requirements for main eq bonding aswell.
I have corrected my post.