EV charger installation

[Gavin John Hyde]

I've done a bit more research. It's a 100 Amp Supply, split consumer unit with AC RCD on both sides. So will install a separate CU with double pole Type A RCD and surge protector to feed Wallbox Pulsar Max which has the RDC-DD and PEN fault detection built in.

You could fit DP type A RCDS in the existing board... or as a lot of hager boards dont have a neutral bar could fit on at the top and run a MCB on its own next to main switch and run it through a Type A RCD then on to the charger. although if the charger has built in rcd protection via the RDC does the manufacturer specify a DP type A still? I would personally still fit one as its dubious if some of these chargers actually comply to the regs.

There are a 100 ways to skin a cat and no two EV installs are the same. Having done 100s of them you learn something different on each one. It is only with experience that you can look at a consumer unit and see a solution.

 

[Markyd]

Hi Buzz, thanks for responding, the client shortlisted 4, although he did say he wanted an untethered one. So on the basis that Zappie V2.1 7kW (ZAPPI-2H07UB-G) ticks all the boxes, I'd say that one.
It has pen fault protection and "Socket Protection" includes - "Overload, DC Sensitive and Fault Current Protected" so yes rcd.
Supply is in the house, and the charger is to go on the outside of the garage wall, so the run will be part clipped direct, and part buried underground.

Are you a registered Zappi installer or registered with any EV manufacturer...if not cannot carry out the works as you wont be able to commision the work

 

[tony9i9i9i]

Are you a registered Zappi installer or registered with any EV manufacturer...if not cannot carry out the works as you wont be able to commision the work

Yeah gone with Wallbox and did their online training yesterday, I'm certified and certificated!

 

[timhoward]

Yeah gone with Wallbox and did their online training yesterday, I'm certified and certificated!

I did the Wallbox training a while ago. Mind numbing comes to mind!
In case you can't find it, as I couldn't, the bit covering the installation of CT clamps is part of a separate online training course called "Metering" or similar.

 

[buzzlightyear]

I did the Wallbox training a while ago. Mind numbing comes to mind!

You can say that again, it's like sitting in a dentist chair waiting for anacetic to go off before they pull you teeth out after.

 

[Markyd]

Yeah gone with Wallbox and did their online training yesterday, I'm certified and certificated!

Top Man Does that cover any other manufacturers or just wallbox

 

[tony9i9i9i]

Top Man Does that cover any other manufacturers or just wallbox

Just Wallbox I'd guess.

 

[Risteard]

In the old days of the OLEV grant we used to have to send proof of manufacturers' approval for each different make & model of chargepoint we could fit under the grant. Of course each manufacturer insisted on doing their training first...

 

[gmartine]

I hope you don't mind me jumping on the end of this thread with a query as I see it's occupied by the correctly qualified folks. I've just had a quote to run a supply to a charge point (7kw) about 20m to the end of the garden.

Unfortunately the easiest route from the CU is through the home via the the loft and out the back. I'd obviously expect armoured cable to be used in the garden but is it a requirement in the loft as I've been told? TIA

 

[littlespark]

Depending on length of run, it’s probably cheaper running one continuous armoured cable than having a joint from armoured to non armoured half way… and that would be introducing a possible fault point at a joint box.

However, if you choose a cable with the additional comms cat5 built into it, the cost per metre increases.

Can you give us the figure and we could judge whether it seems realistic or not.

 

[gmartine]

The run is about 12m internal and 15m external. I'm not particularly querying the price atm as it's my first quote just wondering if it was strictly necessary due to regs but then it isn't drawing anymore than a low powered electric shower. No CAT5.

Quote was just under £1800, suburbia Uxbridge nr Heathrow.

 

[littlespark]

I know London-ish prices are much higher than the rest of the country... so i dont think its too bad...

Regulation wise, then no... you wouldnt need armoured within the house as it doesnt need mechanical protection as it does outside. You also cant run standard household flat grey twin and earth outside as the UV from the sun can damage the insulation.

Try running your "low powered electric shower" for several hours a day, non stop.... thats more like an electric charge point.

 

[gmartine]

I know London-ish prices are much higher than the rest of the country... so i dont think its too bad...

Regulation wise, then no... you wouldnt need armoured within the house as it doesnt need mechanical protection as it does outside. You also cant run standard household flat grey twin and earth outside as the UV from the sun can damage the insulation.

Try running your "low powered electric shower" for several hours a day, non stop.... thats more like an electric charge point.

The Mrs likes very long showers but I take your point . Tnks

 

[Markyd]

 

[gmartine]

However, if you choose a cable with the additional comms cat5 built into it, the cost per metre increases.

Just a thought as you mentioned integrated CAT5, do chargers need to be able to connect to the interweb?