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Because the breaker rating is much higher than that of any one socket outlet, the system can only be used with fused plugs or fused appliance outlets. They are generally wired with 2.5 mm2 cable and protected by a 30 A fuse, an older 30 A circuit breaker, or a European harmonised 32 A circuit breaker.

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Can I run a spur off a ring main?
The spur must be connected to the existing circuit using the same cable as used in the main circuit. You can see how to wire a spur to an existing socket from the images below. … A general rule for a ring main is that if you only have two cables in the back of an existing socket then it is ok to spur.

Can I run a spur off a ring main?
How many Spurs are on a ring main?
A spur can be connected to an existing socket, on either a ring main or a radial circuit, providing that socket does not already have a spur. That is only one spur per socket is allowed and the number of spurs must not exceed the number of sockets.

What size cable is used for plug sockets?
What size MCB do you use for the ring main?
What is spur socket?
What is a radial socket?

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