Any EV Home Charger Installers?
Discussion
We renovated a house last year and we asked our electrician to fit a juntion box at the front of the house in case we get an EV in the future. We wanted to reduce the amount of mess once we required the EV home charger to be installed.
Fast forward 8 months and we have decided to get an EV. I contacted the previous electrician and he told me that they will still need to run a new 'data' cable to the meter as the regualtions have changed. I'm possibly confused on what the data cable is used for but the Ohme EV charger I have looked at uses 4/5G data with a built in multi SIM.
Can anybody offer any advice or knowledge on this?
Thanks
Fast forward 8 months and we have decided to get an EV. I contacted the previous electrician and he told me that they will still need to run a new 'data' cable to the meter as the regualtions have changed. I'm possibly confused on what the data cable is used for but the Ohme EV charger I have looked at uses 4/5G data with a built in multi SIM.
Can anybody offer any advice or knowledge on this?
Thanks
I think this is referring to a 'clamp' meter that needs to be fixed around the incoming electricity supply. The charger then monitors the total load coming into the house and backs off if you are getting close to the supply limit. My charged would only run at 3.6kw when the meter was not connected ( but can be disabled in the setup menu)
biggiles said:
Some chargers require/want/prefer a proper Ethernet connection, some are happy with wifi. Depends on how sophisticated your setup is. My "Wallbox" is happy enough with Wifi (though I had an ethernet connection laid in for any future needs as well).
Ye I have been researching wifi and 4/5G chargers. It seems from further investigation a data cable is required to monitor/control/shut off the supply at the Smart meter if needed.We're in the same position - had the supply cable and RCBO in the new consumer unit with surge protector, put it about 3yrs ago during a refurb as the meter and the charger locations are pretty well diagonal corners of the house.
Now there needa to be a 2 core cable for the current transformer. Annoying, as it would have been so easy to fit while the house was shell.
Seems like there ought to be a wireless current transformer solution, and I do recall seeing a charger that had that built in but I don't think it's made now.
I think the RBCO spec has changed too, althought there's space in the consumer unit for a two pole one.
Now there needa to be a 2 core cable for the current transformer. Annoying, as it would have been so easy to fit while the house was shell.
Seems like there ought to be a wireless current transformer solution, and I do recall seeing a charger that had that built in but I don't think it's made now.
I think the RBCO spec has changed too, althought there's space in the consumer unit for a two pole one.
cts1975 said:
Ye I have been researching wifi and 4/5G chargers. It seems from further investigation a data cable is required to monitor/control/shut off the supply at the Smart meter if needed.
It doesn't do that - it backs off the charging current if the whole house loads exceeds certain limits.If you fit a Zappi you can pair it with a Harvi (a wireless CT transformer).
This is an option we often fit if we're limited with our cable runs.
In an ideal world I now use EV Ultra cable (6mm combined with shielded data cable) however in the situation you're describing, or in my home indeed which has the same setup (prewired 6mm cable but with no data cores) you're limited to a wireless CT solution.
This is an option we often fit if we're limited with our cable runs.
In an ideal world I now use EV Ultra cable (6mm combined with shielded data cable) however in the situation you're describing, or in my home indeed which has the same setup (prewired 6mm cable but with no data cores) you're limited to a wireless CT solution.
DorsetSparky said:
If you fit a Zappi you can pair it with a Harvi (a wireless CT transformer).
This is an option we often fit if we're limited with our cable runs.
In an ideal world I now use EV Ultra cable (6mm combined with shielded data cable) however in the situation you're describing, or in my home indeed which has the same setup (prewired 6mm cable but with no data cores) you're limited to a wireless CT solution.
In practice, is the wireless range ever an issue? I Googled the Harvi and saw a comment saying avoid metal between the transmitter and charger - in my house an American fridge/freezer is smack in the way.This is an option we often fit if we're limited with our cable runs.
In an ideal world I now use EV Ultra cable (6mm combined with shielded data cable) however in the situation you're describing, or in my home indeed which has the same setup (prewired 6mm cable but with no data cores) you're limited to a wireless CT solution.
In my case could take a 2 core (I think it basically only needs to be bell wire, doesn’t it?) up into the loft from the CU area, across the house and back down to my data cupboard just above where the charger would go. From there there’s an Ethernet cable to the charger location so I could join to that.
Sheepshanks said:
In practice, is the wireless range ever an issue? I Googled the Harvi and saw a comment saying avoid metal between the transmitter and charger - in my house an American fridge/freezer is smack in the way.
In my case could take a 2 core (I think it basically only needs to be bell wire, doesn t it?) up into the loft from the CU area, across the house and back down to my data cupboard just above where the charger would go. From there there s an Ethernet cable to the charger location so I could join to that.
Yeah it can be as thin as you like really, you just Wago it on to the cable which is super thin. Bell wire is fine. In my case could take a 2 core (I think it basically only needs to be bell wire, doesn t it?) up into the loft from the CU area, across the house and back down to my data cupboard just above where the charger would go. From there there s an Ethernet cable to the charger location so I could join to that.
Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff