Spur for diswasher and washing machine in radial circuit

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yarcyk

Hi.
I would like to know if I can connect socket to radial circuit to power diswasher and washing machine (double socket) with fused spur. I know that circuit should be fused 20A so if I use 13A fuse it will probably blow fuse if both working together, can 20A fused switch be used? (I don't think it can but want to know for sure), otherwise what is the best solution to have both appliances connected with fused spur switch above the worktop in the kitchen?
 
Why are you using radials and not a ring? FCU’s on a ring sit easy with me, off a radial?
Poor / inexperienced workmanship would spring to mind if I came across it.
I think E54 has nailed his colours to the mast regarding radials, well mines now along side it.
 
I have to agree with the others, iv'e never done a radial in a kitchen unless its dedicated.
I did work with a polish sparks years ago who always wired 4mm radials to do all the kitchen appliances by that i mean one radial serving all of them. I had a chat about it and he thought i was mad as its done all over europe he said. I just gave up.
 
Please explain why a kitchen radial is bad practice, it is in the brb(or bgb) , I am not being funny, I would like to know the reason why it's wrong
 
Thanks Spinlondon.
If I use 20A un-fused switch will appliance be protected? But the question remains if I can connect them both to double socket?

Tony, there is a radial in the kitchen and I am installing new kitchen. I'm not gonna change radial for ring as I think the whole installation will need to be updated at some point anyway.
 
The circuit breaker at the origin of the circuit will protect the cable to the double socket outlet so long as the circuit has been correctly installed. The fuse is not there to protect the appliance just the cable. The appliance if plugged in to the socket it will have a 13A fuse in the plug so no problems there.

Use of the 20A switch should be fine so long as the appliance ratings are not above 20A in total.
 
Nothing at all wrong with a radial. aslong as you install 4mm2 cable protected by a 32amp in the kitchen. 20amp with 2.5mm2 cable serving the bedrooms and another 20amp radial for downstairs.

Easier to 1st fix(no return to c-unit).Easier and quicker to test.Easier to fault find.Less cables in fuse box to 2nd fix. I think its the way forward. Some sparks cant see past the "ring final circuit".

Obviously i do still install rings but im leaning loads more to a radial circuit. My NAPIT assesor put me on to the idea "why u still messing around with rings" i quote.
 
I thought we were supposed to radial everything now to save the planet? Anyway exactly what are people using in their kitchens that's using so much? The kettle is the most demanding in my house, 3kw, and that's on for what a minute at a time. I have a large American style fridge/freezer but that doesn't use much. A microwave 800w? On for a couple of minutes. The only thing on for any length of time is the washing machine, and that's only using 2kw when its heating. It sounds like I need to get some more appliances out there, and a couple of plinth heaters to keep up with the Jones.
 
Washing machine and dishwasher if on at the same time and heating water can be around 4-5kW as both have similar heating elements.
 
seb77 said:
Nothing at all wrong with a radial. aslong as you install 4mm2 cable protected by a 32amp in the kitchen. 20amp with 2.5mm2 cable serving the bedrooms and another 20amp radial for downstairs.

Easier to 1st fix(no return to c-unit).Easier and quicker to test.Easier to fault find.Less cables in fuse box to 2nd fix. I think its the way forward. Some sparks cant see past the "ring final circuit".

Obviously i do still install rings but im leaning loads more to a radial circuit. My NAPIT assesor put me on to the idea "why u still messing around with rings" i quote.
Click to expand...

Only for electricians that are ignorant of the benefits and adaptability of Final ring circuits. You design a circuit of any description based on the needs and requirements of the situation, taking possible future needs/requirements into consideration....
 
I believe the uk is one of the only countries to use a ring circuit. The reason been is when you cut through the cable you have two radials running off the wrong mcb. You might not beable to cover such a large area using radials but at least you dont have a problem spuring off.
 
I tend to use radials where appropriate for 'house' circuits, and RFC's for kitchens, utilities etc.

I just can't see why (in a properly designed circuit) a flat screen telly needs to be provided with 5mm2 of copper. But a kitchen, that's a different matter.

Floor area/csa/rating considerations taken into account, there's no more flexibility in a ring than a radial, it's just an economic argument on loading as to whether it's cheaper/more eco friendly to run the whole circuit in 4mm or just need to run a return leg (let's face it, not normally that long) in 2.5mm.
 
i agree england is the only country to use a ring circuit invented because of the war. there is already talk of doing away with the ring curcuit so that once again we can fall in line with our european bretherin
 
As far as I'm aware, the OP's intention is to spur off of a Radial , not a RFC.
As for there being talk about doing away with RFCs, there has been talk about such ever since they were introduced.
The IET has no intention of doing away with RFCs, and considering the current high price of copper, it is more likely that other countries will be introducing RFCs themselves
 

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