Dee123 said:I haven't seen anyone here talk about using the BMW charger. Has anyone bought this? Are there any advantages over those provided by Chargemaster?
I was quoted £315 (already subsidised I think) for BMW but it's fully refundable through a grant here in Scotland. So I was going to get one...
philcro said:The wall box is not connected via a plug, it is hardwired on its own circuit back to an RCD breaker of 32A (about 10 milliseconds), then via a smart meter into the main fuse board where again protect by another 32A breaker. The whole house is on 100A fuse (sealed by the electricity) supplier. I assume the RCD is there to protect the smart meter.
New circuits in the UK have to be installed and certified by a qualified electrician, and fuses and wiring used are rated but that does not mean that is the maximum they can draw.jadnashuanh said:philcro said:The wall box is not connected via a plug, it is hardwired on its own circuit back to an RCD breaker of 32A (about 10 milliseconds), then via a smart meter into the main fuse board where again protect by another 32A breaker. The whole house is on 100A fuse (sealed by the electricity) supplier. I assume the RCD is there to protect the smart meter.
Okay, the internal fuse wouldn't cut it in the USA where it needs to be 125% of a hardwired load, but is also probably okay, since the car won't draw more than 30A anyways, giving it a little margin for the logic boards and control circuitry to run the EVSE.
How do they ensure the wires from the main panel are not being overloaded? What's to prevent someone from using say 14g wires to feed that 32A device? That's what the US codes are protecting with the fuses or CB...the wiring to the device. It's up to the device to protect itself, if it wishes.
jadnashuanh said:How do they ensure the wires from the main panel are not being overloaded? What's to prevent someone from using say 14g wires to feed that 32A device? That's what the US codes are protecting with the fuses or CB...the wiring to the device. It's up to the device to protect itself, if it wishes.
philcro said:Dee123 said:I haven't seen anyone here talk about using the BMW charger. Has anyone bought this? Are there any advantages over those provided by Chargemaster?
I was quoted £315 (already subsidised I think) for BMW but it's fully refundable through a grant here in Scotland. So I was going to get one...
I have the BMW wallbox and don't know of any advantages over any others, however when I had a problem with the onboard charger (KLE) BMW Icare wanted to know type of charger used. I suggest as the car was tripping the house fuse that had it not been a BMW box I may have had a fight to get them to believe it was a car fault.
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