Apologies if this appears twice. Original appeared to disappear into the ether
Hi
An electrician has recently installed a new consumer unit.
The unit has 8 mcbs for the eight circuits and one main off switch. Between the incoming supply and the consumer unit is a single RCD which therefore kills all the circuits if it operates.
Last night an earth/neutral fault on one circuit resulted in the RCD tripping and no power to anywhere in the house. Since it was an earth/neutral fault turning off all the mcbs still did not allow the RCD to be re-set and hence no circuits could be used until the fault was dealt with.
Under the 17th is it permitted to do this or should there be a dual RCD board or part/all rcbos? Chapter 31?
TIA for any advice