And what of 3-phase? Let's say that you have 3-phase at home and do your best to balance the phases. Whilst the car is charging, the phases will be sufficiently balanced to keep the neutral voltage down; but when you plug in or disconnect, the same does not necessarily hold true.
In that case, 722.411.4.1 (i) clearly does not hold apply.
For larger installations, it may, however, be practicable. There will be additional guidance, and a rule of thumb, to help make that decision, in the 4th Edition of the IET CoP.
That to some extent is my gripe. The amendment aims to deal with the risk in single phase installations, but not 3-phase ones. There are spare ways in my fuse box just waiting for a solution. I suppose that one will arrive within the next 15 years. ?
And what of 3-phase? Let's say that you have 3-phase at home and do your best to balance the phases. Whilst the car is charging, the phases will be sufficiently balanced to keep the neutral voltage down; but when you plug in or disconnect, the same does not necessarily hold true.
In that case, 722.411.4.1 (i) clearly does not hold apply.
For larger installations, it may, however, be practicable. There will be additional guidance, and a rule of thumb, to help make that decision, in the 4th Edition of the IET CoP.
That to some extent is my gripe. The amendment aims to deal with the risk in single phase installations, but not 3-phase ones. There are spare ways in my fuse box just waiting for a solution. I suppose that one will arrive within the next 15 years. ?
