ring main a mess

[tomodo]

Hi guys been re -wiring a consumer unit which ive done and had a look behind sockets and ring main looks a mess seems to be spurs off spurs off spurs in some rooms anyone know what the best way forward is? Just put on 20amp breaker , i cant split in board and put on two 20amp mcbs can as they will still be inter connected at places? Or would people reccomend a rewire cables are red black

Cheers

 

[Leesparkykent]

Trace the circuit from point to point, also worth drawing it out as you find out what's what. From here you will be able to find the best point to split the RFC and put them on 2 x 20A radials. This way you can be sure of no interconnections etc.

 

[tomodo]

Yeah that makes sense do you think 20amps would be enough for kitchen only a small one

 

[Leesparkykent]

Calculate the load with diversity of course.

 

[PEG]

Hi guys been re -wiring a consumer unit which ive done and had a look behind sockets and ring main looks a mess seems to be spurs off spurs off spurs in some rooms anyone know what the best way forward is? Just put on 20amp breaker , i cant split in board and put on two 20amp mcbs can as they will still be inter connected at places? Or would people reccomend a rewire cables are red black

Cheers

Hi dude, as above,a test out,with your own drawings,will identify that issue,and the colour of the original wiring is no indication of any need to rewire.

I have many,many clients,who possess and use,installations containing wiring going back to the 1920s'...and as long as it passes inspection and testing...it is just a note :wacko:

 

[Pete999]

Hi guys been re -wiring a consumer unit which ive done and had a look behind sockets and ring main looks a mess seems to be spurs off spurs off spurs in some rooms anyone know what the best way forward is? Just put on 20amp breaker , i cant split in board and put on two 20amp mcbs can as they will still be inter connected at places? Or would people reccomend a rewire cables are red black

Cheers

Did you do any checks or testing before changing the CU? by the sounds of it the answer would be no.

 

[davesparks]

If you are rewireing anyway does it matter?
Cables being red and black means nothing, unless they are black and crispy that it

 

[Simonslimline]

Sounds like he is just changing the board.

 

[tomodo]

I did test before but only insulation test. And yes I am only changing board, I am thinking now to disconnect every socket and test each cable to see where it goes and draw it on paper then sort that way...but this will be a long task, any advice?

thanks for the replys

 

[Octopus]

Hi guys been re -wiring a consumer unit which ive done and had a look behind sockets and ring main looks a mess seems to be spurs off spurs off spurs in some rooms anyone know what the best way forward is? Just put on 20amp breaker , i cant split in board and put on two 20amp mcbs can as they will still be inter connected at places? Or would people reccomend a rewire cables are red black

Cheers

What makes you think this?

Have you asked your scheme tech support to see what they recommend?

 

[davesparks]

I did test before but only insulation test. And yes I am only changing board, I am thinking now to disconnect every socket and test each cable to see where it goes and draw it on paper then sort that way...but this will be a long task, any advice?

thanks for the replys

Why did you say you were rewireing in the op if you aren't?

What tests have you done to establish that the rfc is a mess as you put it?

 

[tomodo]

Ive found two radial circuits so far coming off ring main, going to do a full rfc test tomorrow

 

[Octopus]

Ive found two radial circuits so far coming off ring main, going to do a full rfc test tomorrow

It that is the case that's easy to fix!

 

[Pete999]

Why did you say you were rewireing in the op if you aren't?

What tests have you done to establish that the rfc is a mess as you put it?

Post 9 Dave IR only