Emergency lighting

[keith915]

What colours do you guys use for live + Sw live? I've always used black switch live, brown permanent. The sparks I worked with today use black as permanent. All sleeved accordingly of course.

Discuss! :biggrin5:

 

[Guest123]

Are we talking 3core and earth pvc, pvc cable here?? If so I tend to use black as a 4 pole klik uses the black core as permanent live with brown as switched live.

 

[Hawk81]

I do the same as above

 

[keith915]

Yes I'm talking 3-core t+e. Is there any particular reason for using black as Permanent? The guys said today "that's just what it says on the destructions" . Is it to distinguish a cable as being used for an emergency light in the switch?

 

[telectrix]

i use black as perm. L. because the you,ve got brown as switched L. same as on all the non emergency fittings.

 

[Sintra]

Yep also use black for perm and brown for switched live.

 

[keith915]

oh dear, not much to discuss. I'm wrong, everyone else is right !

It's good to challenge the 'norm' ...

 

[telectrix]

it's not wrong, mate. either way is right, just that there's more of us than there is of you.LOL. which brings me to a point, related to this thread. as brown, black and grey are "phase colours", the same as red,yellow, and blue were in more sensible times, i fail to see the point of sleeving black and/or grey with brown. i know it's convention to do it, but fail to see the point. it's not like sleeving a blue if it's a switched live, is it?

 

[keith915]

V.true. If it's a phase colour, take it as being a phase/live/line conductor until sleeved otherwise.

 

[cbw]

Oh well, you and me both...I sleave the black and use it as s/l too!!!!

 

[gnselectricals]

Black sleeved as sw line for me also, always ID with sleeving to make sure no-ones confused coming in after me


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[Gravid]

Yeah Black sw/l as well here, guess that evens it up.

 

[Adam W]

Are we talking 3core and earth pvc, pvc cable here?? If so I tend to use black as a 4 pole klik uses the black core as permanent live with brown as switched live.

Same. Black is widely accepted as 'auxiliary', ie emergency feed. I subbied on a job where they wanted to use black as sw and brown as perm, using klik connectors, and of course everything went pear-shaped due to the colours crossing over.
It gets a bit confusing when you introduce PIR sensors though - they use brown for live in and black for switched (out), ie the other way around.

 

[the pict]

I did the Emer's on a large leisure Spa complex it paid to check EVERY lamp I replaced the standard seemed to be Yellow perm,red switched, but sometimes it was the other way and sometimes the blue was either N or switched,
Pict

 

[millwall ken]

i use black as perm. L. because the you,ve got brown as switched L. same as on all the non emergency fittings.

Thats EXACTLY what I was taught (the theory behind using the black - same as the old yellow). And a good way to always remember it I've found.