There seems to be a standard installation developing for domestic EV charge points where it is 6mm2 no matter what. I checked one installation which will have around 9v dropped on a 7Kw charger. Ok, I acknowledge that the full load current won’t be pulled at all times but it can be assumed that there will be long periods when it will. Multiply that by an ever increasing demand across the nation and we can expect to see considerable energy wastage. Perhaps, we should be setting tighter limits than 5%.
I agree - This is what the proposed Chapter 81 (proposed in DPC for 18th Ed) and Chapter 82 (proposed in DPC for 18th AMD2) in BS 7671 are all about addressing.
These Chapters may not be part of BS 7671 at the moment, but they have been published for use as BS HD 60364-8-1 and BS HD 60364-8-2. (If you've got a spare £500 or so).
I agree - This is what the proposed Chapter 81 (proposed in DPC for 18th Ed) and Chapter 82 (proposed in DPC for 18th AMD2) in BS 7671 are all about addressing.
These Chapters may not be part of BS 7671 at the moment, but they have been published for use as BS HD 60364-8-1 and BS HD 60364-8-2. (If you've got a spare £500 or so).
