Moderator comment - the following threads were moved from Rolec EV Wallpod
Unfortunately, there is a myth that's still being promulgated that the requirements for wiring an EV charge point somehow changed relatively recently. The reality is that they didn't, at least not materially. The requirement for having DC tolerant RCD protection and some form of open PEN protection (for PME installations) dates back to January 2012, when the IET published requirements that were broadly similar to what eventually got incorporated into BS7671. Although those IET requirements didn't have the authority of being a part of the wiring regulations, they were, in effect, given the same authority, as the government mandated that they be complied with for any charge point installed with the aid of grant funding.
The reality is that the majority of charge points that were installed in the early days, from when grants became available, until BS7671 was amended to include Section 722, were not safe and compliant with the requirements. Some manufacturers chose to just ignore the need for DC tolerant RCD protection, and unfortunately it seems that few electricians actually understood that this was a requirement, so didn't question it. The result is that we have a lot of older charge points that have never met the safety requirements from the day they were installed, and some, including a few electricians who should know better, aren't really picking up on this. It's something that would definitely be a C2 on a periodic inspection, though, so we should be seeing some of these non-compliant installations being picked up through the ten year EICR process.
Edited: corrected typo
Thanks @Glan gluaisne to bring this up
I had this issue addressed in my post #21 but was shot down...
Unfortunately, there is a myth that's still being promulgated that the requirements for wiring an EV charge point somehow changed relatively recently. The reality is that they didn't, at least not materially. The requirement for having DC tolerant RCD protection and some form of open PEN protection (for PME installations) dates back to January 2012, when the IET published requirements that were broadly similar to what eventually got incorporated into BS7671. Although those IET requirements didn't have the authority of being a part of the wiring regulations, they were, in effect, given the same authority, as the government mandated that they be complied with for any charge point installed with the aid of grant funding.
The reality is that the majority of charge points that were installed in the early days, from when grants became available, until BS7671 was amended to include Section 722, were not safe and compliant with the requirements. Some manufacturers chose to just ignore the need for DC tolerant RCD protection, and unfortunately it seems that few electricians actually understood that this was a requirement, so didn't question it. The result is that we have a lot of older charge points that have never met the safety requirements from the day they were installed, and some, including a few electricians who should know better, aren't really picking up on this. It's something that would definitely be a C2 on a periodic inspection, though, so we should be seeing some of these non-compliant installations being picked up through the ten year EICR process.
Edited: corrected typo
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