socket

[Badged01]

You would not be doing it in my house or any of my jobs, straight out of the door tools first.......!!

And you're technical justification for that in-line with regulations would be .......

 

[Colin33]

I think its a good idea to show extremes when getting your point across XT but... you are just looking at overcurrent with the above example not fault current, also it would be completely unrecognised by electricians and therefore far more likely to cause problems and also its against the regs, whereas one 2.5mm spur from the origin would be ok for fault current, fairly recognised and adhere to the regs.

But!! If it was just a 2.5mm coming out of a 32A MCB with no ring then why not advise the housholder to change to a 20A MCB, you dont have to but it seems like a good idea.

I certainly wouldn't advocate the scenario, and have always worked on the basis of MCB egual or less than CCC of cable. I have always replaced 'offending' MCB's in the past with something more 'suitable' but maybe I've been over cautious? I don't get involved with EICR's so don't have the dilemma of which code is 'appropriate'

 

[jamie-spark]

See 433.1.103

 

[Hawkmoon]

Say it like it is Glenn

Yes, because it is total crap!! lol

 

[Hawkmoon]

Well in this case it clearly doesn't comply. does it? if we don't comply then it's the slippery slope to butchery

Explain to me where/how it does not comply...

 

[Hawkmoon]

I've always thought that the sole purpose of the Fuse/MCB was to protect the cable ie the MCB needs to be equal to or less than the maximum current carrying capacity of the cable. So in this case, the 32A MCB is not suitable.....

Overload protection does not have to be at the origin of the circuit...

 

[NickD]

Yes, because it is total crap!! lol

But with an ickle maggot of truth wiggling about in it.

 

[jaypp]

deleted.

 

[Hawkmoon]

So based on this assumption I could wire a single 13A socket on the end of some 1mm cable from a 50A MCB in the CU?

No, because even though, in your example, overload considerations may be met (though doubtful), thermal constraints (cpc fault current) certainly are not.

 

[dazza1981]

Overload protection does not have to be at the origin of the circuit...

So you think its ok to have a 1.5mm cable protected by a 50 amp breaker???