Electrical car charging point installation

[HappyHippyDad]

At some point I'm going to get asked to fit one of the above and I'd like to know a bit more about it from some people that have already fitted them.

I've had a look through section 722, am I right in thinking the following:

1. Has to be on a dedicated circuit?
2. Has to have Type A RCD protection.
3. PME cannot be used if the charging point is located outdoors, therefore has to be TT'd?

Are the charging points that you can buy universal for every electric car or do you have to fit one that is suited to the customers specific car?

Any recommendations for charging points?

Cheers

 

[Baddegg]

Been gently looking into this myself,Someone posted a link to this the other day HHD....apologies to the op but can’t remember who

 

[Ian1981]

At some point I'm going to get asked to fit one of the above and I'd like to know a bit more about it from some people that have already fitted them.

I've had a look through section 722, am I right in thinking the following:

1. Has to be on a dedicated circuit?
2. Has to have Type A RCD protection.
3. PME cannot be used if the charging point is located outdoors, therefore has to be TT'd?

Are the charging points that you can buy universal for every electric car or do you have to fit one that is suited to the customers specific car?

Any recommendations for charging points?

Cheers

My advice is to either invest in GN7 or the IET guide to electrical vehicle charging units for further guidance other than section 722

 

[Gavin John Hyde]

Dedicated circuit yes when looking at single chargers in domestic or workplace settings(however you can have more than 1 charger on them when there is software to balance load etc across the chargers and no overload circuit).
Some chargers have integrated type a rcd protection so dont need to put it at the cu but others such as the ev:box elvi units need upfront type a rcd protection as the dc monitoring stuff inside isnt compliant in the uk. I use rolec type a rcbos as they are only £20 a pop.
Cant use pme for a charger outdoors. cant really use tns either as the dno wont commit to saying they wont upgrade in the near future. so always assume it will be pme.

all new uk evs should now be on a type 2 plug rather than the older type 1. with tethered chargers you can usually replace just the lead if the car changes. teslas are a bit different.

Worth knowing that the renault zoe electric car does a loop check and if the Zs/Ra is too high it wont charge. not sure of the figure but its quite low so when on a rod it often stops charging if say ground dries out... customers go a bit mad when they find out. it isnt always posible to get a sufficiently low enough reading from even 2 rods so Renault pulled a cracker on this one.

 

[Rpa07]

Dedicated circuit yes when looking at single chargers in domestic or workplace settings(however you can have more than 1 charger on them when there is software to balance load etc across the chargers and no overload circuit).
Some chargers have integrated type a rcd protection so dont need to put it at the cu but others such as the ev:box elvi units need upfront type a rcd protection as the dc monitoring stuff inside isnt compliant in the uk. I use rolec type a rcbos as they are only £20 a pop.
Cant use pme for a charger outdoors. cant really use tns either as the dno wont commit to saying they wont upgrade in the near future. so always assume it will be pme.

all new uk evs should now be on a type 2 plug rather than the older type 1. with tethered chargers you can usually replace just the lead if the car changes. teslas are a bit different.

Worth knowing that the renault zoe electric car does a loop check and if the Zs/Ra is too high it wont charge. not sure of the figure but its quite low so when on a rod it often stops charging if say ground dries out... customers go a bit mad when they find out. it isnt always posible to get a sufficiently low enough reading from even 2 rods so Renault pulled a cracker on this one.

Does the Renault Zoe onboard Efli testing equipment need calibration every year? Just a thought!

 

[Charlie_]

Over there on the mainland.
Do you get a reduced tariff for having a house with a ev charger installed?

 

[PJH2903]

Another thing to bear in mind is that for a new install; if the customer is looking to claim the charger grant; you need to be a registered installer with OLEV.

 

[BrendonP]

I have been looking into this myself.

Im doing the C&G 2919-01 2day course next week which is required to register with OLEV.

Ill let you know how it goes.

 

[HappyHippyDad]

I have been looking into this myself.

Im doing the C&G 2919-01 2day course next week which is required to register with OLEV.

Ill let you know how it goes.

Please do let me know how it goes Brendon, I'd be very interested.
How much does it cost?

 

[Midwest]

I can’t seem to find a recent thread on car charging/PME supply, which had all the discussion about PME supply, so resurfaced this one (bet someone will find it now).

What makes of charges use a system that completely isolates the car from the supply?

Neighbours just got an electric car. So wanna be a smart arse before he has the charger installed.
[automerge]1582652298[/automerge]
I’ve just googled the vehicle. £72,000. Doesn’t include the charger, nor a sunroof. Perhaps it’s got PV on the roof?

 

[Ed Evans]

At some point I'm going to get asked to fit one of the above and I'd like to know a bit more about it from some people that have already fitted them.

I've had a look through section 722, am I right in thinking the following:

1. Has to be on a dedicated circuit?
2. Has to have Type A RCD protection.
3. PME cannot be used if the charging point is located outdoors, therefore has to be TT'd?

Are the charging points that you can buy universal for every electric car or do you have to fit one that is suited to the customers specific car?

Any recommendations for charging points?

Cheers

As I am a tutor of EV charge points the correct answers are:
1.
[automerge]1585488167[/automerge]

As I am a tutor of EV charge points the correct answers are:
1. It is best to be a dedicated circuit so as not to make it a more difficult installation.
2. Yes you are right it must have a type "A" rcd.
3. If the charge point is in a garage that is attached to the building it does not need to be "tt'D" if it is not attached it then needs to be made into a "TT" system. The earthing is more detailed but I would need to know the installation in more detail.

Regards

[email protected]

 

[HappyHippyDad]

As I am a tutor of EV charge points the correct answers are:
1.
[automerge]1585488167[/automerge]

Did you mean to write more rather than just '1'?
I think possibly a tutor would have written an explanation for each of the 3 questions, not just written '1'.

 

[Midwest]

Did you mean to write more rather than just '1'?
I think possibly a tutor would have written an explanation for each of the 3 questions, not just written '1'.

Think his reply is within the 'quote box', and I'm no expert but I don't agree with his answer for 3.

 

[Ed Evans]

Did you mean to write more rather than just '1'?
I think possibly a tutor would have written an explanation for each of the 3 questions, not just written '1'.

read the next bit
[automerge]1585490793[/automerge]

Think his reply is within the 'quote box', and I'm no expert but I don't agree with his answer for 3.

yes your are right you are not an expert or even picking up that more information is required to give accurate and correct information.

 

[Midwest]

read the next bit
[automerge]1585490793[/automerge]

yes your are right you are not an expert or even picking up that more information is required to give accurate and correct information.

Thats a bit harsh?

You said;

'If the charge point is in a garage that is attached to the building it does not need to be "tt'D" if it is not attached it then needs to be made into a "TT" system''.

Thats, if I recall, is not what is exactly said in Section 722.