Power end off - but nothing got triggered

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This is a strange one has it has baffled me. I have a consumer unit, with single RCD (and 6 or 8 way).

I had outage (everything went off - lights sockets). I Checked the RCD, the on/off power, the individual fuses. Nothing had flicked.

I noticed to turn the power on and off. And the power came back one.

That is really weird.

The power has cut 3 times like this, but am stumped..... as to why it is happening....

How can the power just cut off, without anything not getting flicked?
 
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Title Correction:
Power went off - but nothing got triggered
 
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Sometimes you have to push the switch all the way down before you can switch it on/up again but there is usually some movement you can see.

Unless it is faulty, that is not related to why it trips.


I think you will need an electrician whatever it is.
 
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Can you clarify (or post a photo) the layout of your box. Does the single RCD act as a main switch and cover everything? or is it a split load setup with only some outgoing ways protected?

MCBs and RCDs are designed such that they can trip even if the handle is obstructed. So if the handle is a bit sticky then a device can trip without the handle visibly moving.
 
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Maybe it was just a power cut or two or even three. Last year we had two power cuts in quick succession for about twenty minutes and as you say, none of the MCB's or RCD's flicked off - because it was the local switch gear messing about not my consumer unit.
 
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Fuses don’t flick, they burn out.

The wire melts and the non flammable casing prevents anything burning when the wire melts.

That said the non flammable casing can get hot enough to cause ignition/heat damage to other items if the current is enough to keep the fuse wire glowing red hot without being hot enough to melt.
 
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It could be a loose connection or a clamp not screwed down onto a busbar.
 

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