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Can anyone advise what happen if you go for an EV on the scheme please regarding the installation of the charger?
Reading the Motability guide topics such as 10 meters distance and only drilling through one wall are mentioned. Does someone come out to your home to check and advise on siting at all?
Any help or advice would be greatly appreciated.
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I don’t know exactly how Motability work sorry but, this drilling one hole in nonsense as the price of a SDS bit is included in a job. If I charged per hole I’d would have never got any work!
Having said that I believe Motability to be somewhat lenient, if you neede and extra hole or meter of cable!
Is your consumer unit on a outside wall and where is it in you house in relation to where you want your charger?
When you contact the company (ohme is our case), you will be sent an email with an online form to fill in including pictures and a short video showing the location of your fuse box, outside electric supply and a wider view of the front of your property.
Thanks for the help @Kezo, the consumer unit (meter) is on an outside wall but there is a passageway between the wall and the garage where I would prefer the charger to be installed. Not sure if this is a possibility.
Thanks for the help @Kezo, the consumer unit (meter) is on an outside wall but there is a passageway between the wall and the garage where I would prefer the charger to be installed. Not sure if this is a possibility.
When you say passageway are you refering to an outside path and detatched garage or a passageway in the house?
Can you put up a couple of photo’s?
As already said Ohme asked questions and wanted videos and photos and a drawing of your floorplan to where you want it fitting.
Never had an engineer visit. They just accepted what I sent.
The fitter didn’t enter my house. He took direct feed from the outside meter box and fitted a seperate external consumer unit next to the meter box.
Cable was then ran along 4m of wall to mounting of charge point.
Thanks for the help, really appreciated.
Olpk
How long did you wait for install from first contact mate?
It is quite simple, as above. they do want pictures of your consumer unit, if you have a isolation switch,
If it is just one mains cable and what rating is on the main fuse.
Just send in as many pictures of your supply, consumer unit, where you want the Ohme fitted and also they request an uninterrupted video of the consumer unit and the path to where you want the Ohme charger fitted.
If its a complicated install, they will send an engineer out to survey the site. But mostly its OK and they come and fit the charger quite quickly.
The disadvantage of the Ohme charger is the charge cable and supply cable are installed at the factory in what is essentiallly a sealed box. In particular the supply cable is only 1m in length and virtually useless in the majority of cases, which causes an extra stage installing the charger, which is not as neat/seamless as it could be!
The most likely scenario depending on whether your meter is inside the house or in an outside meter box:
If your meter is inside the home – Most likely the installer will split the outgoing meter tails in whats called a Henley block and install an additional consumer (protected by a 30mA type A RCD and a 32A MCB) inside your meter cupboard if there is space along with an isolation switch if not already present. The installer will then run either 6mm2 twin and earth & data cable cable from the new consumer unit and drill a hole to take the cable outside the property, hopefully with a meter of the charger location. A square junction box will then be mounted on the external wall, where the charger supply cable is also connected. Or, if and trenching work is required 6mm2 armoured (SWA) + data (EVultra cable) will be connected to this juction box and be run to within a meter of the charger where another junction box is needed to be connected to the charger supply cable.
A CT clamp would have been fitted to the incoming live meter tail that connects to the CT terminals in the charger (wireless units are sometimes used) The CT clamp monitors the load in your home and disconnects the charger supply if it detects your are close to blowing your main cutout fuse.
The image shows: Isolator to the right of the meter, to the right of the isolator is a Henley block, that spits the tails for two or more consumer units. Bottom far left shows part of DNO service head and cutout, to the right of that you can see the black CT clamp connected to the live (red) incoming meter tail (next to it is a red CT clamp on the neutral – ignore that for basic EV charger install) In newer homes or those that have had meter swops these cables will be Brown(L) and Blue(N). At the bottom right is a earth clamp that yur likely not to have these days!
If your meter is in a meter box outside your home – The installer will split the outging meter tails using a Henley block and install a new ip65 rated consumer unit (with a 30mA type A RCD and 32A MCB) next to the meter box and then run 6mm2 EV Ultra cable to within a meter of the charger and install a square weatherprrof box, where the charge supply cable is connected. A CT clamp would have also been installed.
As of 22nd September last year Amedment 2 BS7671 18th edition sec 443 requires Installers to ensure SPD’d are fitted. So you will find the installer will fit a DIN mounted surge protection device (SPD) in the consumer unit that supplies the charger,this is to detected voltage surges and ultimately protects you.
As mentioned previous, photo’s/video will be required of your meter cupboard to ensure your equipment and meter tails are up to standard the service head cutout fuse rating (although there likely to check with DNO) and main earth bonding is adequate and in place a the gas meter and incoming water main if required!
This covers the basics 🙂
No Khazi, there is a choice between the Ohme Pro which is tethered or the Ohme normal which is not tethered but has the socket for plugging into the charging unit
No Khazi, there is a choice between the Ohme Pro which is tethered or the Ohme normal which is not tethered but has the socket for plugging into the charging unit
The large majority on the scheme will opt for the Ohme Pro with either a 5m or 8m tethered cable, rather than the untehered E Pod.
However fitiing is the same other than you do not need a junction box, as you can connect the 230v supply cable directly to the charger!
Truly the reason why this site works so well as a resource, your explanation of installation is excellent. Thank you for taking the time, I found it very useful. My meter is outside, very close to where the charger will go, but my consumer unit is about 10m away, obviously inside, and through a very thick (barn conversion) wall. I was wondering if I’d be left with a big double cable run across the front of my house but your guide suggests they’ll probably install an external consumer unit instead. Hope so!
@kezo Truly the reason why this site works so well as a resource, your explanation of installation is excellent. Thank you for taking the time, I found it very useful. My meter is outside, very close to where the charger will go, but my consumer unit is about 10m away, obviously inside, and through a very thick (barn conversion) wall. I was wondering if I’d be left with a big double cable run across the front of my house but your guide suggests they’ll probably install an external consumer unit instead. Hope so!
When they know its a 2-3ft thick stone wall they most definately connect to your meter box!
Happy to help 🙂
Had the ohme pro fitted last week all relatively straight forward about 3 hours to complete.
No feeding through walls in my case as meter is outside and i think a 5m cable from carger to reach car
App is fairly easy to set up aswell.
What happens if you have a home charger installed due to ordering a elec car,but you decide to cancel ev order and decide on a petrol,diesal or phev as new car?
What happens if you have a home charger installed due to ordering a elec car,but you decide to cancel ev order and decide on a petrol,diesal or phev as new car?
I believe you will keep it for when you eventually have an EV.
4 weeks.
4 weeks.
Is that how long you have to wait after having one installed ?
Had the ohme pro fitted last week all relatively straight forward about 3 hours to complete. No feeding through walls in my case as meter is outside and i think a 5m cable from carger to reach car App is fairly easy to set up as well.
I have an outside metre too (80 amp fuse but only 5 years old) and my fuse box is inside but near that wall the meter is on.
Does that mean I might get away with no drilling too? I thought they had to go to fuse box (or is this where a small extra box is added in meter box?)
Yes they will fit everything outside no need to feed through any walls we also had 80 amp fuse and no issues.
They will fit small cut out box next to your existing meter.
They dont feed anything to the consumer unit just meter.
Can you specify which charger they fit?, the Ohme Pro would be no good for me as I need at least a 10m cable to get to my (future) car. The Ohme Pod would be fine but of course I’d have to buy a cable to go with it.
While I’m here, if I have to use a cable that’s detachable at both ends (with the Pod) is there any way of locking the cable in place while it’s in use?, I live in a quiet area but I don’t fancy having to pay out £150-£200 if it gets stolen.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!
Can you specify which charger they fit?, the Ohme Pro would be no good for me as I need at least a 10m cable to get to my (future) car. The Ohme Pod would be fine but of course I’d have to buy a cable to go with it. While I’m here, if I have to use a cable that’s detachable at both ends (with the Pod) is there any way of locking the cable in place while it’s in use?, I live in a quiet area but I don’t fancy having to pay out £150-£200 if it gets stolen.
Yes mate you could request Ohme pro with Motability however the Ohme charger only comes with 5m or 8m tethered cable, which you would have to request!
You have the choice of Ohme pro or the ohme e pod which isn’t tethered.
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