Combining circuits

[Gardner]

Would anything forbid me from combining the clothes washer socket and kitchen dishwasher to a single circuit & MCB?

 

[trev]

Current required by the appliances, current carrying capacity of the cable.
To name but 2

 

[Gardner]

But nothing in the regs? The load of the washer is 2200 watts with a built in heater and the dishwasher coming in at around 2000 watts. My plan is 2.5mm2 wire and a 20amp MCB. Washer will be plug and socket while the dishwasher will be hard wired, however that can be changed to a socket if regs forbid it.

 

[Andy78]

But nothing in the regs? The load of the washer is 2200 watts with a built in heater and the dishwasher coming in at around 2000 watts. My plan is 2.5mm2 wire and a 20amp MCB. Washer will be plug and socket while the dishwasher will be hard wired, however that can be changed to a socket if regs forbid it.

I think you'll find the considerations suggested by Trev and circuit design in general pretty important parts of the regs.

 

[trev]

What recommendation is made for appliances over 2k?

 

[Andy78]

What recommendation is made for appliances over 2k?

If you are on about the cost in pounds, I would say an extended warranty would be worth considering

 

[trev]

I was making the point about dedicated circuits mate, but you knew that anyway

 

[SPARTYKUS]

Why are you worried about british regs? You being in the US of A 'an all?

 

[Andy78]

It's Friday and the homebrew is upon me.

 

[telectrix]

and then that's that little factor known as diversity.

 

[123]

What recommendation is made for appliances over 2k?

Nothing? Unless you install dedicated circuits for the likes of toasters, kettles etc. 3kw is the general cut off, although doesn't stop a tumble dryer being plugged in anywhere!

 

[bigash]

I as a trainee have come to the conclusion that some people carry the regs around like they are a fashion statement but rarely look in them.

What a waste of £60.

 

[Octopus]

and then that's that little factor known as diversity.

is is that when on a Friday night you combine beer then red wine? Hic, hic

 

[ian.settle1]

American regs are different to UK regs

 

[SPARTYKUS]

What regs are in America?

 

[Gardner]

and then that's that little factor known as diversity.

How would diversity be calculated? I can see both on at the same time... or not at full power long enough?

 

[ian.settle1]

What regs are in America?

Have a look at the OP location

 

[123]

How would diversity be calculated? I can see both on at the same time... or not at full power long enough?

Have a look in your OSG.

 

[telectrix]

How would diversity be calculated? I can see both on at the same time... or not at full power long enough?

you can only estimate. even if they are both on at the same time, they will not always both be on heat cycle, and even then, it's only 18A (assuming you have a 240V supply, not 120V).

 

[Silly Sausage]

But nothing in the regs? The load of the washer is 2200 watts with a built in heater and the dishwasher coming in at around 2000 watts. My plan is 2.5mm2 wire and a 20amp MCB. Washer will be plug and socket while the dishwasher will be hard wired, however that can be changed to a socket if regs forbid it.

What voltage are they on?
I believe you chaps over there have different voltages than us here in Blighty.