Electrical question, ring circuit?

Question

Having read the latest information on part P regulations and not being in a special area i am asking this question.

Also the repair is on a like for like bases i dont have to inform any body.

QUESTION.

I wish to replace a small section of 2.5 t/e cable in a ring circuit due to the wire needing to be slightly longer going into the back of the socket

At present the cable is BLACK,RED,BARE COPPER (FOR SLEEVED EARTH)

The new cable is now BROWN, BLUE, BARE COPPER

Can i mix old/new cable colours together or do i have to place a notice for information?

Answer 1

The usual mish mash of wrong answers. You can do this work by yourself, it is not notifiable, The colours are as stated, Red to brown, black to blue, and earth to earth sleeved with green/yellow. You have to fix a warning notice to the consumer unit, if you mail me I will send you one.

http://www.niceic.org.uk/downloads/Pocket%20Guide%208.pdf

Answer 2

You seem to have enough knowledge to do the job. However, if you use cable with the modern colours, it will be apparent that the cable has been replaced since Part P came in.
It would be entirely wrong for anyone to suggest that you might ask your friends if any of them has a suitable length of any red/black 2.5mm cable which they would exchange for a pint at the pub. It would be even more wrong for you to use that cable, thus giving the impression that the work was done before electricians managed to persuade John Prescott to give them a monopoly on this sort of work.
I'm sure you are not the sort of person who would get involved in such subterfuge.

Answer 3

Girlie is probably right. If the neutral (blue or black) is disconnected at your new socket. If that is what has happened then you will see voltage on the Live line with a neon screwdriver, but the current won't be returning properly. It may look ok on a quick visual check but the conductors themselves may not be inserted properly. Because it's a ring main the socket will be fed from both directions (either side) so a disconnection on any one of the adjacent sockets won't give your fault. If you feel up to it then examine all the sockets on your ring main and check them for secuity. Ignore the answer referring to "Hot" and 110v etc. That is American and although he probably means well, their electrical wiring standards are different from European ones.

Answer 4

Any repairs alterations etc Must be done by a competent electrician and a certificate obtained also now most of the old type fuse boxes are obsolete and new onse must comform to the current standards ie Trip out time is miliseconds it is worth getting some one who is qualified as all premises will have to have these type of boxes soon Cost £200

Answer 5

Yes you can mix the new and old colours
Yes you must put a notice on the consumer unit to that effect
No you should not be doing this yourself unless you are a registered electrician
Yes you should employ someone to do it for you
Yes you can do the majority of the work yourself but the professional should come and make the actual connections and then he or she will test the circuit and certify it

Answer 6

Yeah you can mix them:

Black is Blue
Red is Brown
Copper goes to Copper (or yellow & green)

Hope this helps

Answer 7

yes u can mix the cable colours.
yes u should put a warning notice on the consumer unit.
yes you can do the work yourself,but if in doubt please consult a qualified electrician

Answer 8

You can mix them. Replace any green sleeving with green/yellow.

Answer 9

yes, wire is wire, as long as it is the same size and rating, make it work!