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Electrician understanding of Electrical Vehicle Charging installations

I note from my future assessment visit under notes, that the NiCEIC reserve the right to visit the location where an EVC installation has been installed. Methinks there may be concern on the quality of installations by their members whether future or not. I have enrolled on their onsite course which includes a copy of the IET Code of Practice - Edition 4. I did enrol since I was aware of the knowledge and other standards required by the installer. I have not carried out any of these such installations but I was asked to quote for one, so having seen what was involved w.r.t. earthing requirements and consultation with the supplier etc. I gave an initial quote of £50 for an initial survey etc. to this domestic property. I didn't get any response so I assume that the eventual contractor simply gave a quote. I am now concerned on the quality of such installations. Should it be made compulsory to inspect such installations by a competent authority before energisation?'

Jaymack        

Parents
  • I listened to the podcast of last weeks Fix Radio Electrical Show (7th April 2022) with Tom Nagy talking to Paul Meenham, the failure rate of OLEZ/OZEZ inspections is quite significant, the biggest issue being incorrect types of RCD being installed or existing inappropriate types already installed not being replaced.

    The issue being that electricians are either connecting to existing Type AC RCDs or actually installing them, rather than ensuring the minimum requirement of having Type A RCD protection is met.

Reply
  • I listened to the podcast of last weeks Fix Radio Electrical Show (7th April 2022) with Tom Nagy talking to Paul Meenham, the failure rate of OLEZ/OZEZ inspections is quite significant, the biggest issue being incorrect types of RCD being installed or existing inappropriate types already installed not being replaced.

    The issue being that electricians are either connecting to existing Type AC RCDs or actually installing them, rather than ensuring the minimum requirement of having Type A RCD protection is met.

Children
  • Hi Sparkingchip. I am concerned that as an industry we seem to be saying that Type A RCDs are our savour. For Electric vehicles additional DC protection can be provided by the charger unit, otherwise we should be using Type B. 
    I understand your point that certain contractor have installed AC RCDS, but we need to be careful of the mantra of Type  A’s being the new norm too. 
    This could also be the case in homes and offices for general circuits, not just EV’s, if we believe DC fault currents and this ‘blinding’ effects are evident. Thanks