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[ElectriciansForums.net] MCBs on.. But still power?


Hello all,

I've searched the forum before asking but coming up empty handed??

I have a power cut from earlier. Live in a flat with a joined kitchen / living room and heard a bang from around the boiler area, then darkness.

Checked the CB's and had 2 tripped which were "B circuits" and lighting. The main 100A MCB was still in, but no power anywhere in the flat.

I've put both CB's back in and still nothing. I have no CB's off now but still the flat is dead. Checked with neighbours as I thought maybe it was the supply and we were all down but they're good. So MCB in and subsequent CB's in but still nothing... Can anyone please advise?
 
Your board looks like it’s fed by an armored cable (black one entering the board at bottom) this means the meter is probably external to your flat? If so go to your meter cupboard which is probably in the communal area and there will probably be a switch fuse or circuit breaker supplying your flat. My bets would be it being a circuit breaker that’s tripped by your meter because if it was a fuse I doubt it would of blown.
 
Just for future reference, the red 100a main switch is only a switch, it will never trip on overload or a short circuit fault.
As Westward10 has asked a good question, if the yellow buttons cause the RCDs to trip....then there is power present at the DB, if they don’t, then you have no power.
 
Cheers. Tried to find it but think it's downstairs in a locked cupboard which I can't get access to (no access to meter as is inclusive with tenancy.)

Waiting on someone coming out to it, but that's been since around half 5, so guessing won't see him or her tonight.

Yeah, cheers snowhead, I would've switched them all off before I did but since can't get access I'll need to wait it out.

Westward 10; I did try resetting them but nothing.
 
Hi @enpassant just to while a few minutes away while you are there candle in hand awaiting succour, En Passant, I am teaching my grandsons chess and was trying to remember exactly how the En Passant rule worked, do you know?
My chess skills are so basic I had to ooogle that up. But if anyone tried that stuff on me I'd definitely have to resort to harsh language...
 

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