What is that fuse? Can someone identify

[k24]

Can someone help me identify what this this please? I think it is some kind of fuse I was told. What is that, how does it work, what is it for?
I don't know anything about electrics, so would be great if you can explain it to me

Moved from "Electrician Talk Forum"

 

[SPECIAL LOCATION]

Can someone help me identify what this this please? I think it is some kind of fuse I was told. What is that and how does it work?

No idea..
Tried zooming in on your images but they are too poor quality in my opinion!!

Why are you asking..?

What is / or what was the problem..?

 

[poni]

looks like the service head fuse the local network bods will sort it out.

 

[Geoff1946]

What a mess. Hopefully the supply is isolated elsewhere. If you aren't sure, keep well clear.

 

[ProDave]

All I see is a disaster zone, looks like the aftermath of a consumer unit fire?

As comment above, if not completely isolated, keep your hands out.

 

[Andy™]

service fuse. i think replacing that is the least of your problems

 

[Fleeting]

See how well the metal board withstood the fire.

 

[ProDave]

Surely this post is a wind up?

Get an EICR done before you replace the fuse.

You might want to get the gas tested as well.

 

[mort2376]

Henley service fuse of some type. From the pics you can only surmise that the fire has melted the cut out it was in and the heat has probably made it fall out.

The fire investigators will be able to tell you more. But to start with I wouldn't touch anything until given full permission from any relevant authorities.

 

[Andy™]

The fire investigators will be able to tell you more.

i wonder if it started inside the metal consumer unit?

 

[mort2376]

I wouldn't think so as the cu if that's what's in the pic is pretty much intact and still has the paint on it.

 

[Andy™]

doesn't mean the fire didn't start in it though

chances are it was something else that did start it though

 

[k24]

Henley service fuse of some type. From the pics you can only surmise that the fire has melted the cut out it was in and the heat has probably made it fall out.

The fire investigators will be able to tell you more. But to start with I wouldn't touch anything until given full permission from any relevant authorities.

What is a Henley service fuse? Where is the main overload fuse?

This is an aftermath of a fuse board fire. I have attached pics of the burnt fuse boards/consumer units.

The EICR was done 12 months before and replaced the 1 plastic consumer units with a metal one, and the other consumer unit was metal already.

This was on the original report that they remedied:

1 4.2 Plastic DB C3-‘Improvement Recommended’

2 non ip rated bathroom light C2-‘Potentially Dangerous’
Urgent remedial action required

3 no grommet strip where cables entering a metal consumer unit C2-‘Potentially Dangerous’
Urgent remedial action required

4 bus bars to close together C2-‘Potentially Dangerous’
Urgent remedial action required

5 2.5 radial bunched in a 32amp ring C2-‘Potentially Dangerous’
Urgent remedial action required

Thanks to everyone who has replied

 

[k24]

Fire report says it started from from overloaded/damaged electricity consumer unit.
Should the fuse/switches in consumer unit trip to prevent overload?

 

[mort2376]

Henley service fuse is the cut out. Search Henley cut out on Google.

 

[k24]

Henley service fuse is the cut out. Search Henley cut out on Google.

Thanks. Where is this normally located?

 

[Fleeting]

So the fire came from the new metal consumer unit?

 

[Andy™]

Thanks. Where is this normally located?

you keep asking about the DNO fuse. what exactly are you trying to achieve here? where did the fire start?

 

[mort2376]

Thanks. Where is this normally located?

Before the meter where the main cable enters the property.

 

[ProDave]

So you say this started as a fire in a consumer unit.

A very important question here, did it start in the NEW metal consumer unit, or in the existing one that was not changed?

The whole point of a consumer unit is to provide circuit protection so no circuit can be overloaded, the protective device will trip first. Clearly that did not not happen.

And a few years back wiring regs changed to ensure consumer units were fireproof, which all manufacturers took to mean metal, to contain a consumer unit fire. That worked well in this case then, NOT.

Which consumer unit is a very important question, and following on from that is what paperwork was supplied with the work done, and possibly those questions will lead on to what is his public liability insurance details......