Switch within a ring circuit

[macsood]

Hi All,

Im extending a ring circuit for a customer but he wants two switches for his washing machine and dishwasher, he doesnt want socket outlets showing on top of the work surface but just wants these two switches, is there an easier way of doing this but keeping the ring circuit.

Thanks

macu

 

[onions1066]

You could spur off 2 individual sockets that are on the ring but if you are doing this you might as well keep it on the ring. Or of course a radial from board

 

[Resu]

Extend ring through two 20A DP switches with a switch wire from each going to a single socket (one for each appliance). Seems a simple solution am I missing something here?

 

[onions1066]

Extend ring through two 20A DP switches with a switch wire from each going to a single socket (one for each appliance). Seems a simple solution am I missing something here?

I think he is looking for a miracle answer

 

[Silly Sausage]

Why does the customer want switches for these appliances?
Just have socket outlets in adjacent cupboards and plug them in there.

 

[Benjamiin]

Why does the customer want switches for these appliances?
Just have socket outlets in adjacent cupboards and plug them in there.

Because the customer is always right

 

[Darkwood]

Appendix 15 ... nice big picture to follow

 

[kingeri]

Deary me.

 

[Pete999]

Why not use a FCU above the work top, spur down to a 13amp unswitched socket under work top

 

[Risteard]

An FCU will give you two 13A BS 1362 fuses in series.

 

[telectrix]

a 20A D/P switch is the answer. 1 for each appliance. alternative would be a grid switch assembly.

 

[Pete999]

Good idea I was thinking along those lines when Risteard put me right, don't do any installs now just keeping an interested overwhatch

 

[Octopus]

One 20A DP switch and a single double socket below?

 

[Geoffsd]

It's not a good idea to have WM and DW in the same double socket.

Plus - you may not want to switch them both off.

 

[macsood]

Thanks guys, but why the customer wants two switches is beyond me but i did suggest to have two sockets in the cupboard but he insists on having switches so i think having two FCU's and spurring to single sockets would be the way to go.
i'll try again and put him off the idea of switches.

 

[Geoffsd]

Why?

FCUs are no advantage.

What's wrong with two switches?

 

[varilite]

That's right no point using FCU'S as already fused in plug top

 

[tex431]

What about a 20a switch with a neon?

 

[macsood]

so spurring of the switches to a single socket and maintaining the ring through the switch - is that allowed?
Why two switches- because he's planning to have a sink in between the applainces.

 

[ackbarthestar]

so spurring of the switches to a single socket and maintaining the ring through the switch - is that allowed?
Why two switches- because he's planning to have a sink in between the applainces.

TBH, I can't see a problem with this setup. My only concern might be that the switches are rated for 20A so would that mean the input terminals are rated st 32A? There has been a debate about this with grid switch assemblies.
In practice, the loading is not going to be anywhere the rating of the protective device. So as stated elsewhere, A 20A DP switch feeding a BS1363 unswitched socket outlet would look reasonably pleasing.

 

[richy3333]

Why does the customer want switches for these appliances?
Just have socket outlets in adjacent cupboards and plug them in there.

If he's in Scotland the Scottish Building Standards require it?

 

[Knobhead]

so spurring of the switches to a single socket and maintaining the ring through the switch - is that allowed?
Why two switches- because he's planning to have a sink in between the applainces.

Are you an electrician?

I've got my doubts.

 

[macsood]

Yes i am.

 

[Risteard]

My only concern might be that the switches are rated for 20A

The cable supplying a ring final circuit is only required to have a 20A rating so what is the problem?