Twin and earth

[markb]

Just like to know is the white sheathed twin and earth cable with red and black stranded conductors still allowed to be used, if the old fuse box was replaced with a new consumer unit or will the cables need to be changed.

 

[dixon9]

give yourself a good deal on the rewire not someone else!

There speaks a wise man.

 

[Gravid]

Markb said it was the white sheathed cable which would have been single copper core!! i thought the stranded type was grey sheathed are you guys on here saying even if its copper it can not be used any more even if you colour code the red and black with brown and blue? I have stacks of this in my dads garage and he wants me to clear it out next time i am down south hope its worth money for scrap if i can not use it in any installations anymore.

I was always told that you weren't supposed to mark old colours as new colours, due to the " de-neutrafying" of the black that happened when the new colours came in.

So when the 2 are mixed, say in a junction box, old should still be marked with red/black sleeving and new with brown and blue.

It is (i was told) considered bad practice.

 

[SirKit Breaker]

What a load of fuss about nothing. You can use any cable you want as long as it meets the correct british standard for its intended load and installation method, it doesnt have to be twin and earth. However it must be correctly identified as was said earlier as there is a tick box on the Install Cert which states "conductors correctly identified" or words to that effect.

Just get on with it, i wish i had a stash of old cable i could save myself a fortune.

Cheers.........Howard

 

[steamboatwilly]

What a load of fuss about nothing.....
Just get on with it, i wish i had a stash of old cable i could save myself a fortune.
Cheers.........Howard

Yes, quite. And that's what we have sleeving for. Just remember to put the "two standards of colours used" label on the CU.

 

[Gravid]

Yeah cables a cable at the end of the day i'm not particulary fussed i'm just discussing it, but it does say in appendix 7 old cable shall be marked red for phase black for neutral.
I'd scrap it myself and get new.
I'd be interested to hear what the NIC and other schemes thought.... mainly the NIC.

 

[steamboatwilly]

I'd be interested to hear what the NIC and other schemes thought.... mainly the NIC.

I asked my NIC inspector a couple of years back and he said using old stock cable was just fine as long as I sleeved it. Don't throw the old stuff away but do buy new colours when the old stock has gone. Not sure if that represents the official NIC line but it seems a balanced view