EV Charger Replacement and Wiring

[ericmark]

I would look at the lack of clips on the EV twin and earth as a sign as to how installed, also the lack of any supply not going through a dedicated RCD, since the new unit has a built-in RCD the question is should one use cable not requiring RCD protection for the whole route?

Not really talking about rules and regulations, but swapping an EV charge point using a cable which seems to have been just thrown in, with no warrantee of skill.

It may be within the rules and regulations, my edition of BS 7671 is well out of date, but my first job would be removing the lid from the consumer unit and see if it has three neutral bars, need to work out how one can get a supply where the RCD is not shared with other equipment, and once I know the options, then look at the price.

RCBO's cost more than MCB's, and the price varies make to make, so need to price the different options, I remember doing this for one job, and a complete new consumer unit worked out cheaper than upgrading the original. And the big difference was the price of the SPD, and these have since become cheaper with many makes of CU.

Personally, I prefer all RCBO protection, as it means should DC freeze a RCBO it is only affecting one circuit, we talk about less than 10 mA DC which is nothing, even for the B type RCD, and more and more in the home is using equipment which can generate DC, so what I want, is for my washing machine even if faulty not to affect my lights.

If you want to change to gain so little, then to use SWA all the way seems a good idea.

 

[trojanhawrs]

I'm not sure if the rcd provided with the easee is compliant, I fell foul of this with the zappi. Most installers would want to fit an upfront rcd

 

[Risteard]

I'm not sure if the rcd provided with the easee is compliant, I fell foul of this with the zappi. Most installers would want to fit an upfront rcd

It isn't to BS EN 61008 or BS EN 61009, for example, so no. It's an electronic "RCD". As I mentioned earlier Easee attracted a sales ban in Sweden and Norway over their misleading information regarding this.

Incidentally I warned for years that the so-called "electronic RCDs" built into these EVSEs did not meet the requirements of BS 7671, and so a dedicated RCD which interrupts all live conductors should be installed upstream of this. (Type B unless an RDC-DD is present, allowing the use of a Type A instead.) Many claimed I was wrong, but thankfully I have been well and truly vindicated since then.

 

[DanK_80]

I just want to clarify, that whatever is my mains board currently, for my existing charger is irrelevant, as I have stated in an earlier post that I am having a new consumer unit for the new charger.
My question was just if my current 6mm twin + 2.5mm earth ok to use, as some people have said it’s not, and needs to be changed to 6mm 3 core.

This is the consumer unit I’m having installed for reference.

 

[Murdochcat]

The cable DOES NOT need changing.

Ask your spark what they recommend for the parts as they should be buying them, fitting them testing the set up and issuing an EIC and if you are in England or Wales a Part P compliance cert

 

[DanK_80]

The cable DOES NOT need changing.

Ask your spark what they recommend for the parts as they should be buying them, fitting them testing the set up and issuing an EIC and if you are in England or Wales a Part P compliance cert

Cheers mate, was the answer I was hoping for.
Yes my electrician will be getting all the parts etc. he was in agreement with you about the cable, it’s just I had conflicting opinions from others and EV fitting companies when shopping around for quotes.

Really appreciate all your help and everyone else’s.

What a top forum!