radial circuit to power washing machine, dryer and dishwasher

[Loky11]

Now chaps,

Will a radial circuit on a 20amp rcbo be enough to power a washing machine, dishwasher, dryer and fridge freezer?

At the moment the radial has a 2 gang to power 2 appliances and a 1 gang to power fridge freezer, possibility of spuring of this circuit to power an extra appliance?


Cheers.

 

[buzzlightyear]

Yes is the answer has long has you keep with in tha rating of the rcbo.

 

[telectrix]

bear in mind diversity.

not all appliances will be drawing power at the same time .

 

[Loky11]

Thanks buzz, I did think it would be OK, however I was concerned if all running at the same time it would keep tripping.

 

[Deleted account]

I wouldn’t.

Theoretically yes it would work, but good design would put a kitchen circuit as a separate ring from the rest of the house Due to the high loads On appliances.

3 of the highest loads on the property on a 2.5mm, I would say is boardering on not good design.

A 4mm radial I would be happy with.

edit: one other point I would make is I never put 2 high load appliances on one 13A double socket. From experience of many call outs they tend to burn out Over time.

 

[telectrix]

I wouldn’t.

Theoretically yes it would work, but good design would put a kitchen circuit as a separate ring from the rest of the house Due to the high loads On appliances.

3 of the highest loads on the property on a 2.5mm, I would say is boardering on not good design.

A 4mm radial I would be happy with.

butOP might have a separate ring for the rest of the kitchen sockets and wanting the radial just for these appliances?????

 

[Deleted account]

butOP might have a separate ring for the rest of the kitchen sockets and wanting the radial just for these appliances?????

Those 3 appliances alone pretty much are the vast majority of a kitchens load on a normal kitchen ring. Putting them on a radial is lowering the current carrying capacity considerably.

Having a ring for the rest of the kitchen wont take that much load away.

i accept design and calc wise it is acceptable, but i would like to give it that bit more current carrying capacity.

 

[Loky11]

The radial in question is in the utility, the kitchen has 2 separate radials with a total of 3 double sockets.
[automerge]1587634320[/automerge]
I'm hoping to start my extension in the next couple of years so it will all be complete new design and re wire, not that it makes any difference haha

 

[pc1966]

Putting a fridge-freezer on a circuit with a higher than usual chance of tripping is not good, you go out for the day with something running and come back to find half your food is defrosting!

If rewiring/replacing then you could put in 4mm cable for a bigger radial, or if it is feasible add another 2.5mm run to the far end and turn it in to a ring, putting that on 32A breaker.

 

[telectrix]

i put fridges/freezers on either a dedicated RCBO or, if regs. permit, MCB.