Hi
I found an EV charger today with built in type A RCD + RDC-DD connected to a type AC RCD in the consumer unit, the AC RCD is also protecting 3 other circuits including sockets. I know this is incorrect because the type AC RCD could be blinded by DC currents, but I am struggling to find a regulation to reference when providing information to the customer?
Thanks
Alan
One of the things I have muttered about many times over the years is that the British can’t just go with a light touch when adopting new ideas and methods of working.
I know I have previously posted links to the Legrand French website as well as others showing installation methods in Mainland Europe.
In Mainland Europe Type AC RCDs are considered quite acceptable upfront of many circuits including socket and lighting circuits, the requirement is to have at least one Type A for circuits supplying equipment such as EVSE, washing machines and cooking hobs which have known problems with DC leakage.
But the Brits being the Brits have to go for complete protection by Type A RCDs for all circuits.
Don’t go blaming our European cousins for an apparent total ban on Type AC RCDs for socket and lighting circuits, because they do still use them.
www.legrand.fr/.../que-doit-on-brancher-sur-un-interrupteur-differentiel-de-type-a
One of the things I have muttered about many times over the years is that the British can’t just go with a light touch when adopting new ideas and methods of working.
I know I have previously posted links to the Legrand French website as well as others showing installation methods in Mainland Europe.
In Mainland Europe Type AC RCDs are considered quite acceptable upfront of many circuits including socket and lighting circuits, the requirement is to have at least one Type A for circuits supplying equipment such as EVSE, washing machines and cooking hobs which have known problems with DC leakage.
But the Brits being the Brits have to go for complete protection by Type A RCDs for all circuits.
Don’t go blaming our European cousins for an apparent total ban on Type AC RCDs for socket and lighting circuits, because they do still use them.
www.legrand.fr/.../que-doit-on-brancher-sur-un-interrupteur-differentiel-de-type-a
