Self Install Ev Charger

[Ihmix]

Hi guys thanks for all the information, a few of you are talking about looped or not looped, we are not looped and I have contacted our DNO and they are happy to also upgrade for free our current 80amp fuse to 100amp. The 6mm cable coming from the house consumer unit to the garage is approx 15m- 20m in length.

I totally understand that my unit in the garage will need to be upgraded in order for the installation to take place, you guys also talked about moving my garage supply to a non rcd circuit with the consumer unit, I presume this is pretty straight forward. I also presume upgrading that circuit to 40A would also be required.

Ok just to clarify the charger I am looking at is the Andderson A2, I have posted a link below, it is the 7kw version.

https://andersen-ev.com/products/andersen-a2/

Thanks again all and keep the posts coming.

 

[Taylortwocities]

The pictures of the CU got me puzzling

View attachment 253037

I though to myself.TIME DELAYED RCDs??? They would not comply to meet the disconnect requirements for the installation if they were.

So....I looked at the spec for the CD285U RCD. These are not time delayed devices. The RCD would have an "S" mark on it.
You should cut off the words "Time Delayed".

 

[Ihmix]

The pictures of the CU got me puzzling

I though to myself.TIME DELAYED RCDs??? They would not comply to meet the disconnect requirements for the installation if they were.

So....I looked at the spec for the CD285U RCD. These are not time delayed devices. The RCD would have an "S" mark on it.
You should cut off the words "Time Delayed".

These were attached when the the upgraded cu was installed. I will adjust the stickers so there is no confusion.

 

[ericmark]

I looked at the Andderson A2 you linked to, says it has earth monitoring and PME monitoring 6mA DC protection says it needs type A RCD protection up stream. But monitoring is not good enough needs to auto disconnect it does not say it does that, likely it does and that is what it means by monitoring, but it seems very vague.

It would seem it does not auto disconnect as if it did it would not specify needs a type A RCD in supply.

During and on completion of the installation, the installation
shall be inspected and tested to verify that it complies with the latest amendment of the BS7671.
Before the Andersen A2 is put into service, we as the manufacturer require the installer to simulate a charge with a recognised EVSE adaptor and multifunction tester.
Use of this equipment should only be undertaken by someone who has an understanding of its functions and has the experience and knowledge to do so.

Kewtech EVSE testing Charger adaptor £450 that's just to start with, so I would think your looking at £1000 worth of test equipment, can't see how DIY is an option?

 

[AndyPRK]

The RCD's at the house are Type A. Just saying. Not ideal, but protection present

or make sure you fit Type A in the new garge CU

 

[Ihmix]

Hey all,

loads of great information on this thread which I know will not only help me, but also others with similar questions.

just wanted to thank you all and keep the help and advice coming.

the Anderson A2 is a great unit with plenty of optional safety features available however as with everything of quality. Not cheap.

 

[AndyPRK]

I think they removed the WIFi module in the current ones, which is rather annoying

 

[Ihmix]

I think they removed the WIFi module in the current ones, which is rather annoying

I’m lucky I have hard wired access to the garage already so happy days.

 

[Risteard]

The pictures of the CU got me puzzling

I though to myself.TIME DELAYED RCDs??? They would not comply to meet the disconnect requirements for the installation if they were.

So....I looked at the spec for the CD285U RCD. These are not time delayed devices. The RCD would have an "S" mark on it.
You should cut off the words "Time Delayed".

The fact that they're 30mA would immediately indicate that they aren't time-delayed (S type).

 

[Taylortwocities]

The fact that they're 30mA would immediately indicate that they aren't time-delayed (S type).

Not so. 30mA Time Delayed RCDs are available. Eg https://www.electricalcounter.co.uk...e+Pole+Type+A+30MA+Time+Delayed+RCD/759346069
Not quite sure where you might use one though…

 

[JohnW2]

Not so. 30mA Time Delayed RCDs are available. Eg https://www.electricalcounter.co.uk...e+Pole+Type+A+30MA+Time+Delayed+RCD/759346069
Not quite sure where you might use one though…

Yes, I came across similar a little while ago but, like you, struggled to think of where/why one would ever use such an animal. The only situation I could think of would be as an up-front RCD on a TT installation in which all the final circuits were protected by 10mA RCDs/RCBOs - but that would surely be an incredibly improbable scenario (if it ever exists at all) ?

Can you (or anyone) think of any other situations in which such a device would be approviate?

Kind Regards, John

 

[Risteard]

Not so. 30mA Time Delayed RCDs are available. Eg https://www.electricalcounter.co.uk...e+Pole+Type+A+30MA+Time+Delayed+RCD/759346069
Not quite sure where you might use one though…

Interesting. I've never come across such a product before - and as you point out, I'm not sure what the desired end result would be with them.