View the thread, titled "Connecting a socket to a switch?? In kitchen" which is posted in UK Electrical Forum on Electricians Forums.

Hi guys

Is it possible to spur a socket from this switch? This is a switch for a combi boiler.
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Thank you.
 
You would have to check it’s not a spur already from the ring circuit.
It’s likely on its own circuit, but you’d have to make sure the circuit is big enough to take an extra load.
Ie, a 16A breaker and 2.5mm cable minimum.

As a combi boiler only takes a few amps, if that, it might have been designed for only that one minimal load.

Sockets also need to be RCD or RCBO protected, so that needs checked as well
 
You would have to check it’s not a spur already from the ring circuit.
It’s likely on its own circuit, but you’d have to make sure the circuit is big enough to take an extra load.
Ie, a 16A breaker and 2.5mm cable minimum.

As a combi boiler only takes a few amps, if that, it might have been designed for only that one minimal load.

Sockets also need to be RCD or RCBO protected, so that needs checked as well

Why does it need to be a minimum 2.5mm if the boiler takes a few amps? Is it because the socket needs it?

Also what's the box next to the switch likely to be? I haven't opened it yet as I'm not at at my mums.
 
Why does it need to be a minimum 2.5mm if the boiler takes a few amps? Is it because the socket needs it?

Also what's the box next to the switch likely to be? I haven't opened it yet as I'm not at at my mums.
Because if you add a double socket you could potentially plug in 26 amps although unlikely and you would require 2.5 cable as a minimum as it can carry 27 amps max.it has nothing to do with boiler ,I think what little sparks was explaining was that the boiler may only have a small cable feeding it from a 6 amp mcb or is already spurred off an existing socket .do you have rcd protection on that particular circuit.the blank plate next to it could be a junction box for combi or it could be an old immersion point .
Sorry I should point out that's the maximum current a 2.5 twin and earth can take it drops a fair bit if you are using trunking or installing cable behind wall
 
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We need to know the type of circuit it is connected from and whether it has additional RCD protection.
The blanked off point is probably full of block connectors for the heating system.
 
Devil's advocate mode: If it turns out to be a 2.5mm2 spur from a RFC, would it be considered acceptable to replace the blank with a fused spur feeding a socket? Fuse in existing spur should be 3A, or 5A max, so a 13A fuse in a new fused spur would mean that the spur cable is limited to 16A or 18A, well within the assumed 20A max from a Double socket on a spur.
Not a standard circuit, but the regs don't prohibit non standard circuits that meet design restraints.
 
Devil's advocate mode: If it turns out to be a 2.5mm2 spur from a RFC, would it be considered acceptable to replace the blank with a fused spur feeding a socket? Fuse in existing spur should be 3A, or 5A max, so a 13A fuse in a new fused spur would mean that the spur cable is limited to 16A or 18A, well within the assumed 20A max from a Double socket on a spur.
Not a standard circuit, but the regs don't prohibit non standard circuits that meet design restraints.
Yeh it would be hard to imagine anything heavy being plugged in ,May just be for a charger for a hoover .without knowing the op's technical ability to alter the circuit in that way an electrician would be a wise bet .but some plumbers have a nasty habit of using 1.00 t and e to spur off the ring for there boiler .used to catch it on eicrs all the time.
 

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