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EV Charging and loss of neutral

I mentioned in another post that I would contact HSE regarding any issues reported to them arising from loss of neutral and EV charging points. They have responded and confirmed that there has been no incident reported to them. However, they were made aware of a small number of situations that were a result of poor or no load management. I should point out that this is HSE in Northern Ireland.
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  • "UKPN, I think that you know full well that there several expansive ways proffered in BS7671 with respect to EV chargers which are designed to address the issue of a lost neutral in a PME installation".

    Why would I need to look in a guide book for any information on requirements for a PME connection? The Guide book gets its information FROM the PME requirements list.  Furthermore, BS7671 doesn't always get that right, as we saw from the digging up customers drives to bang endless earth rods to "improve the network" The hairbrained idea was quickly pushed under the carpet when experienced engineers pointed out that it would harm the network. 

    The companies strategy on any issue with any requirement where a PME connection is requested is fully laid out. There is no need for potential users of EV charging units to remortgage their homes to purchase the latest copy of a guide book which will need corrigendum/correction/errata in a few months time.


    Regards, UKPN.Zap
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  • "UKPN, I think that you know full well that there several expansive ways proffered in BS7671 with respect to EV chargers which are designed to address the issue of a lost neutral in a PME installation".

    Why would I need to look in a guide book for any information on requirements for a PME connection? The Guide book gets its information FROM the PME requirements list.  Furthermore, BS7671 doesn't always get that right, as we saw from the digging up customers drives to bang endless earth rods to "improve the network" The hairbrained idea was quickly pushed under the carpet when experienced engineers pointed out that it would harm the network. 

    The companies strategy on any issue with any requirement where a PME connection is requested is fully laid out. There is no need for potential users of EV charging units to remortgage their homes to purchase the latest copy of a guide book which will need corrigendum/correction/errata in a few months time.


    Regards, UKPN.Zap
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