Is this allowed.

[scatmanjohn]

Guys ...

I am ripping out my old kitchen and discovered the following hidden behind the cabinets and am wondering if its is ok.

What i have got is what looks like the last leg on radial circuit to a socket behing the cabinets.

From that point there is a small ring circuit feeding four double sockets.

Is that an acceptable method of wiring the four sockets in question.

Thanks

 

[securespark]

What else is on the "radial" feeding these sockets?

 

[scatmanjohn]

What else is on the "radial" feeding these sockets?

Just had a check and i looks like that circuit feeds the upstairs sockets (six doubles in total) and then comes down the kitchen wall to the point at which the ring circuit begins.

There is a 32A MCB on this circuit.

There is some other sockets in the kitchen but they are on a different circuit with all the other down stairs socket.

Thanks

 

[scatmanjohn]

Anyone else?

 

[Spark123]

Where's Colombia on the map?

 

[scatmanjohn]

I'm working on my holiday home in Yorkshire at the moment

 

[Spark123]

What size is the cable between the CU and the upstairs sockets? What size between sockets? I don't like the idea of having a ring final slapped on the end of a radial, not really a conventional circuit.

 

[scatmanjohn]

The cable size is 2.5mm throughout the circuit.

 

[Spark123]

As it is a 2.5mm² radial it should not be fused at 32A. The norm is 20A for an A3 radial, the ring on the end of the radial needn't be there either.

 

[scatmanjohn]

As it is a 2.5mm² radial it should not be fused at 32A. The norm is 20A for an A3 radial, the ring on the end of the radial needn't be there either.

So if i change it to a 20A mcb would it then be ok.

When you say that the ring on the end off the radial needn't be there, what do you mean.

I was just looking at it again and was a bit confused at why the last socket on the ring had to link back into the radial.

If it didn't link back, wouldn't it just be part of the original radial circuit.

If ya knows what i mean

 

[securespark]

If you convert this to a 20A radial, you do not need a ring on the radial, just delete the "return" of the ring to the end of the radial, so that you have a long string of sockets with cables linking them A-B-C and so on, with the last in the run having only one cable.

 

[Spark123]

Hold on, I am struggling to understand what you say you have. From the OP I understood you had a radial circuit (2.5mm²) fed from a 32A MCB feeding a few sockets upstairs, then down to the kitchen where there is a loop of sockets, i.e. a ring tagged onto the end of the radial?
If so the radial 2.5mm² should be protected by a 20A MCB.
Your ring circuit is completely separate from this?

 

[securespark]

My understanding is that he has a ring on the end of a radial...

 

[scatmanjohn]

My understanding is that he has a ring on the end of a radial...

Thats correct.

But what is the point in that?

 

[Spark123]

There is no point in it at all, sounds like someone has mis-interpreted the regs. The concern is the supply cable (radial) is a single 2.5mm² cable which is not rated high to supply all the socket outlets from a 32A breaker.