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As the others have said the 10mm tails are absolutely fine. They meet the existing regulations as the maximum demand they can ever be expected to need is 32A. They also meet the requirements for fault protection.Hi,
We had a EV charger installed recently over the past day ie 32amp 7.2kw. In the fuse cupboard I’ve attached before and after photos.
I have a 100amp fuse for the house.
For the new EV board setup, should the 2 grey cables entering the EV board (10mm) be the same 25mm thickness as the other cables?
Would this cause any issues for me? Or is this against certain electrical standards?
Someone mentioned to me if I was to change the meter or DNO were to action any new improvements, that I’d have to get these 10mm cables changed before any work would be carried out in the future?
I have yet to settle on the work, so if there’s non standard work complete here due to this, I would be in a position to highlight and query the relevant electrical company. I would appreciate any advise?
Please excuse, as my knowledge in electrical stuff is non existent. It maybe that all is looks fine, and I’ve been given wrong advise.
Regards,
HY
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I realise you have mentioned a number of times that 'someone' has told you they need to be 25mm but they do not. They would need to be 25mm if they were supplying your main consumer unit (even then they may not need to be).
I would be more concerned with whether an earth rod has been installed for this install. The EO website makes no mention that their unit can be used with the earthing supply you have (i.e PME) and therefore you should have had an earth rod installed. In fact the following link by EO states clearly you should have an earth rod installed for use with their unit.
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lastly, it's easy for us to make mistakes as we are not there. I would ask the electrician who installed it if he has installed an earth rod and if not then why? He would hopefully quote one of the 3 exceptions from BS7671 722.411.4.1 but I think this is unlikely.