UK mcb tripping after new sockets

[Jaco13579]

hi all. A friend asked if i would look at his kitchen sockets as they would trip just the mcb now and then. i said ill look but thats it as he had a electrician install 3 spurs and add 1 socket on a radial circuit 16amp mcb and looks like 6mm t&e from mb for the circuit and looks like the combi boiler is on the same circuit (guessing spured). Here's where my problem is he has under counter fridge/freezer, tumble drier, dishwasher, washing machine, plus all the other kitchen stuff. From my under standing from what i remember the load is to much for the 6mm cable and the 16amp mcb.
I believe hes spoke with the electrician and hes said everything is fine with it.
any advise on this would be great
thanks

 

[buzzlightyear]

your friend needs to get the spark back
and see what's is tripping the mcb, are there a RCD In the consumer unit.

 

[Jaco13579]

your friend needs to get the spark back
and see what's is tripping the mcb, are there a RCD In the consumer unit.

yes it has RCD. and will let him know to get him back. and sorry im just asking if this is right for a 16amp radial or should it be a final ring with the load that can be put on it. As i didnt think to much of the work that was done

 

[buzzlightyear]

Radail 20 or 16 amp rings 32amp.

 

[Jaco13579]

Radail 20 or 16 amp rings 32amp.

thanks so my under standing he should have made it 20amp radial to take the extra load from the appliances

 

[pc1966]

thanks so my under standing he should have made it 20amp radial to take the extra load from the appliances

Probably, but it also depends on the cable's size & route as there are different maximum ratings depending on how well insulated it is thermally-speaking, and so how hot it gets carrying current.

If it is 6mm cable then it can generally do 32A no problem, but I suspect the various sockets are on 2.5mm hence could be anywhere between 13.5A max to 27A (but often 20-21A).

 

[Jaco13579]

Probably, but it also depends on the cable's route as there are different maximum ratings depending on how well insulated it is thermally-speaking, and so how hot it gets carrying current.

cheers i just want to make sure he gets the work done that he needs and im sure it runs about 8-10m either in the floor or wall (6mm t&e)

 

[Pete999]

Radail 20 or 16 amp rings 32amp.

Depending on the size of cable used for a radial

 

[telectrix]

under counter fridge/freezer, tumble drier, dishwasher, washing machine, plus all the other kitchen stuff.

wat too much load for a 16A MCB, as said previously, cable capacity (and hence correct MCB rating) will depend on installation method of the 6.0mm T/E.

 

[timhoward]

tumble drier, dishwasher, washing machine,

I suspect the guide I tend to defer to is a little dated but it estimates 10A each for those three alone.
( Home Appliances Ratings | Electrical Safety First - https://www.----------------------------/guidance/safety-around-the-home/home-appliances-ratings/ )

 

[telectrix]

I suspect the guide I tend to defer to is a little dated but it estimates 10A each for those three alone.
( Home Appliances Ratings | Electrical Safety First - https://www.----------------------------/guidance/safety-around-the-home/home-appliances-ratings/ )

10A each is aboutright when on heating part of cycle.

 

[DPG]

Can't believe they've wired it so all the kitchen appliances are on a 16A MCB. Is there any certificate for the work?

 

[telectrix]

Can't believe they've wired it so all the kitchen appliances are on a 16A MCB. Is there any certificate for the work?

probably wrote on left-over Izal bog roll that became obsolete when them labrador puppies started advertising. for the youngsters that don't remember it, it was a shiny, useless arse wipe that instead of removing the shyte, just spread it across your arse. i remember being in hospital aged 11 and every sh*t sheet was stamped "Hospital Property". as if anyone would want to nick it.

 

[pc1966]

I remember Izal bog roll from school days, worse if you crunched it up to try and wipe better as you ended up with sharp corners to scratch you already-troubled ring piece. Awful stuff!

 

[Pete999]

I remember Izal bog roll from school days, worse if you crunched it up to try and wipe better as you ended up with sharp corners to scratch you already-troubled ring piece. Awful stuff!

Wouldn't do your Michael Miles any good using that stuff either.