My PME supply has 25mm tails to a fused isolator, then 16mm T&E to the CU.
The 16mm earth goes from DNO to inside the fused isolator where a taped up connector joins the 16mm earth to the CU and the 10mm gas bond. The earth in the 16mm T&E is not connected in the isolator but is at the CU.
The taped up connector seems a bit iffy, as it is just floating in the isolator which is all plastic. The DNO has 2 earth terminals (not sealed )so surely it would be better to take the 16mm earth and the gas bond directly into DNO, as the gas pipe is next to the DNO. BUT will the DNO allow the gas bond to fitted?
The 16mm earth goes from DNO to inside the fused isolator where a taped up connector joins the 16mm earth to the CU and the 10mm gas bond. The earth in the 16mm T&E is not connected in the isolator but is at the CU.
The taped up connector seems a bit iffy, as it is just floating in the isolator which is all plastic. The DNO has 2 earth terminals (not sealed )so surely it would be better to take the 16mm earth and the gas bond directly into DNO, as the gas pipe is next to the DNO. BUT will the DNO allow the gas bond to fitted?