Sleeved earthwire... again

[SUNRAY]

Apologies, can of worms again. What are the latest rules about oversleeving green/yellow?
The last I knew it was stated as permitted in multicore cables but I was out earlier on a C2 EICR in a wall T stat.

 

[EFLImpudence]

Recently prohibited. Can't remember exactly where.

 

[flameport]

514.4.2
Not permitted unless for a PEN conductor, which it won't be in any normal circuit wiring.

 

[mattylad]

What Flameport says goes....

I would never use a G/Y cable for anything other than it's intended purpose.
No matter what anyone else says, bodging it with an oversleeve or a bit of tape is just not right.
Do it right first time, if your short of cores then get another cable.

 

[pete01]

How many photos cells have an earth wire sleeved brown out there? Loads I'd say...

Would use 4 core these days and not use the earth, strange ay

 

[Echo the husky]

How many photos cells have an earth wire sleeved brown out there? Loads I'd say...

Would use 4 core these days and not use the earth, strange ay

I keep 3 core flex on the van that has brown black and blue cores for photocells.

 

[SUNRAY]

Yeah thanks all.
There has been so much toing and froing on the topic.

 

[JohnW2]

How many photos cells have an earth wire sleeved brown out there? Loads I'd say...

... and you would undoubtedly be right, but not just photocells - also timer fans, PIRs, wall stats and various other things. Quite common, but never very 'nice' and no longer even 'allowed' by BS7671

Would use 4 core these days and not use the earth, strange ay

It is a little ironic, but the 'earth' often will be needed (to comply with BS7671), even if it's supplying something Class II. Were not the case, the ideal would be for cables to come with one of the cores a 'neutral' colour (e.g. white), so that it could be sleeved G/Y when a CPC was needed, but sleeved brown or blue if no CPC were needed but a S/L was!

 

[JohnW2]

I keep 3 core flex on the van that has brown black and blue cores for photocells.

A bit like I just suggested (but white!). However, as I implied, what about the theoretical BS7671 requirement for a CPC to be run to the photocell?

 

[Echo the husky]

A bit like I just suggested (but white!). However, as I implied, what about the theoretical BS7671 requirement for a CPC to be run to the photocell?

The flex will be a short section from a connection point to the photocell, the cpc will be available there.