Socket Ring Main Mcb

Ring circuits are commonly used in british wiring with socket outlets taking fused plugs to bs 1363 because the breaker rating is much higher than that of any.

Socket ring main mcb.

The ring starts at the consumer unit also known as fuse box distribution board or breaker box visits each socket in turn and then returns to the consumer unit. Is this correct should i have the mcb changed to a 20a breaker. The ring circuit cable starts at the consumer unit fusebox visits each socket in turn and then returns to the consumer unit. The 2 cable ends at the cu are connected together in all modern rings and supplied by one fuse or mcb.

Hi guys i have a consumer unit with a 32a type b mcb on a ring main which as 2 5mm t e sheathed cable. The ring is fed from a fuse or circuit breaker in the consumer unit. I have unplugged everything and it still tripped the rcd. Therefore the most you can take from any one socket is limited to 13 amps 3000 watts the mcb protects the cable against overload.

Changing the mcb didn t make any difference. Is this now a problem with the wiring. The socket contacts and applience plugs and cables are protected by the 13a or less fuses in the plugs. As you can see it eliminates the need to wire a socket all the way back to the a consumer unit but the nearest ring main socket is used instead.

They are generally wired with 2 5 mm cable and protected by a 30a fuse an older. The other ring main is for tv stereo table lamps etc. He has checked my load current and says it is 16a. Presently one ring main has a fridge a socket currently used for a toaster and two room sockets which may get used for hoovers etc.

The main purpose of a spur is adding an extra socket on to an existing ring main circuit. Its simplicity makes it a great arrangement for that use. Ring circuits are widely used to supply sockets for 13a plugs. I have an electrician friend who has told me this is not right and should be changed to 20a breaker.

I have also changed the sockets for double pole ones and it still trips the rcd.