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Conductor identification - what would you do

jbrameld
You are replacing some old-fasioned light fittings (that look like inverted 1970s pub ashtrays screwed to the ceilings) with shiny new LED dome fittings.  The house is wired in T&E with red and black cores and you find that the switched line feed is coming into the existing fitting as a black core in a T&E.  Mostly you have found that these have been nicely oversleeved in red, but one or two aren't.


Would you :


a: Oversleeve/mark in red to be consistent with the existing wiring

b: Oversleeve/mark in brown as that is the common 'current' colour for a single phase line conductors

c: Leave it as black as that is an allowed 'phase' colour these days......!

d: Something else - if so what?


Jason.
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    gkenyon:

    Let's say the sleeving fell off when you removed the light fitting, and got lost - would it then have been OK to put red sleeving back?


    Interesting question! Graham has summed up the options nicely.


    If the red sleeving fell off and you caught it, would anybody not put it back? So what's the difference if you cannot find it?


    If you decide to oversleeve (both conductors) in brown, I think that the other end of the cable should be oversleeved in the same way. I haven't got the BBB to hand, but shouldn't the conductors be identified throughout their length?


    I have also asked myself the question whether all conductors in a single circuit should be identified in the same way; but if one has been extended, or say a switch drop has been replaced due to damage, there may well be cable in both colours. So both colours of sleeving may be present.


    On balance I would go for option a. For safety and the avoidance of confusion, I think that the colour of sleeving should match the colour of the (multicore) cable which is being sleeved.


    Graham's option d. may be reserved for exams. ?


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  • 0
    gkenyon:

    Let's say the sleeving fell off when you removed the light fitting, and got lost - would it then have been OK to put red sleeving back?


    Interesting question! Graham has summed up the options nicely.


    If the red sleeving fell off and you caught it, would anybody not put it back? So what's the difference if you cannot find it?


    If you decide to oversleeve (both conductors) in brown, I think that the other end of the cable should be oversleeved in the same way. I haven't got the BBB to hand, but shouldn't the conductors be identified throughout their length?


    I have also asked myself the question whether all conductors in a single circuit should be identified in the same way; but if one has been extended, or say a switch drop has been replaced due to damage, there may well be cable in both colours. So both colours of sleeving may be present.


    On balance I would go for option a. For safety and the avoidance of confusion, I think that the colour of sleeving should match the colour of the (multicore) cable which is being sleeved.


    Graham's option d. may be reserved for exams. ?


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