EV charge point approved with remedial works

[Tinbum]

None of it makes any sense. Unless he has told you of a future upgrade path to get 100A why on earth did he bother changing the tails?

I think it was just a policy that the tails had to be 25mm, he said that before even looking at the fuses.

I did ask why he had to change the isolator switch and his explanation was that the replacement has 2 screws per terminal, whereas the existing only had one and he said they were not tight either. All behind seals so no way to tighten them. I'd have thought even with 2 screws they will still loosen over time anyway!

[sharpener]

None of it makes any sense. Unless he has told you of a future upgrade path to get 100A why on earth did he bother changing the tails?

I think it was just a policy that the tails had to be 25mm, he said that before even looking at the fuses.

I did ask why he had to change the isolator switch and his explanation was that the replacement has 2 screws per terminal, whereas the existing only had one and he said they were not tight either. All behind seals so no way to tighten them. I'd have thought even with 2 screws they will still loosen over time anyway!

I am glad the NGED man did not start down this path. He would have been there all day, the tails go through a 600mm thick random stone wall which has also got two SWA cables going through it via an unknown route to two outbuildings. I was nervous enough about hitting them with the rawlbolts that support my Multiplus inverter never mind drilling right through!

AFAIK 25mm^2 is now the minimum for new work in the Wiring Regs but there is no requirement to upgrade 16 if protected by an 80A fuse.

I think the argument about terminal screws is that the outer one holds the cable secure against external forces trying to move the cable, so there is no wiggling applied to the inner one hence it doesn't loosen.