Discuss MCBs on.. But still power? in the UK Electrical Forum area at ElectriciansForums.net

Reaction score
8
853A9A3A-2E1E-446B-9AC0-A91F720DDA28.jpeg

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...
 
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?
I used to use the en passant move as it's surprisingly poorly known and understood. Unfortunately I can't recall the exact details of when it can be used so don't want to advise incorrectly, but from memory a pawn moves diagonally and captures an adjacent piece which in a square which it never occupies.
 
T’is a great game, Chess, though not so when your nephew beats you when he’s 6 years old! Still, he’s working in Tesco now so I guess he’s the pawn!
(I love him very much by the way)
 

Reply to MCBs on.. But still power? in the UK Electrical Forum area at ElectriciansForums.net

Similar Threads

Please advise what I should test / check next. My usual qualified electrician who did all of the work here is in Ireland for 4 weeks and not...
Replies
45
Views
3K
Hello all, Looking for help here as I've come across a strange call-out today. Bare with me here: Got a call from a customer saying they had...
Replies
13
Views
2K
Last week I was working in a house changing a socket. When I turned the main switch back on and the MCB on the socket didn't energise. I went and...
Replies
6
Views
859
Hey all, I'm looking for some advice to help me troubleshoot my strange issue with my consumer unit/fuse board on which my RCD keeps tripping...
Replies
25
Views
2K
Hi All, I've installed a Lorex doorbell recently, but it is not turning on. I did some tests using a multimeter and this is what I found...
Replies
5
Views
1K

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock