I'm moving house soon and we've had a new consumer unit fitted to upgrade the existing unit. I was working out today which sockets are connected to which MCB. Simple process of plugging something into a socket and manually tripping each MCB in turn until I found the one that killed power to that socket.
At least, it was simple until I got to the plug sockets in the kitchen. No single MCB would kill power to the sockets, so I tried various combinations. Eventually I found the combination of two MCB's that had to be tripped to kill power. That also set off the house alarm so presumably it is fed from the same circuit(s?).
I'm confused by this, my simple understanding is that radial circuits and ring circuits are fed from a single MCB. Is it normal (and safe!) to have the same ring circuit (I'm guessing it must be a ring circuit in this case, by design or otherwise) fed by two MCB's? Perhaps the house alarm wiring is significant here too, but I'm not sure how.
If this is not a normal wiring setup then I'll have to get the electrician back out, so I'm keen to find out whether it sounds wrong. Thanks in advance for any info/help.
At least, it was simple until I got to the plug sockets in the kitchen. No single MCB would kill power to the sockets, so I tried various combinations. Eventually I found the combination of two MCB's that had to be tripped to kill power. That also set off the house alarm so presumably it is fed from the same circuit(s?).
I'm confused by this, my simple understanding is that radial circuits and ring circuits are fed from a single MCB. Is it normal (and safe!) to have the same ring circuit (I'm guessing it must be a ring circuit in this case, by design or otherwise) fed by two MCB's? Perhaps the house alarm wiring is significant here too, but I'm not sure how.
If this is not a normal wiring setup then I'll have to get the electrician back out, so I'm keen to find out whether it sounds wrong. Thanks in advance for any info/help.