I had an email from the IET to say that the DPC for AMD 1 was published yesterday for 60 days for public comment. I can't post a link but you can find it via the IET and BSI websites. It's all about electric vehicle charging.
The basic gist is that another safe means of using a single phase PME supply is added to the list of impractically good electrodes, an earth voltage rise circuit, TT islanding etc.
The new method requires no earth terminal, and is by using a device that removes the car from the charger by opening of L, N and E if the L-N voltage goes out of spec,
i.e. over 253 or below 207V for more than 5 seconds.
This is rather fun, as we discussed exactly this on here here
The basic gist is that another safe means of using a single phase PME supply is added to the list of impractically good electrodes, an earth voltage rise circuit, TT islanding etc.
The new method requires no earth terminal, and is by using a device that removes the car from the charger by opening of L, N and E if the L-N voltage goes out of spec,
i.e. over 253 or below 207V for more than 5 seconds.
This is rather fun, as we discussed exactly this on here here
