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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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    I'd probably do a) (especially as I still have several tens of metres of red sleeving lying around on my shelf of things that might still come in useful one day)


    I'd prefer not to have a mix of colour codes on the same multicore cable - (say you found one tagged black and blue - what would you conclude the colours meant? - L2 & N or N & L3?), so if I did oversleeved black with brown for the switch drop I'd probably oversleeve the other core brown as well.


    Definitely not C - black means L2, so not at all appropriate for a single phase circuit.


       - Andy.
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    I'd probably do a) (especially as I still have several tens of metres of red sleeving lying around on my shelf of things that might still come in useful one day)


    I'd prefer not to have a mix of colour codes on the same multicore cable - (say you found one tagged black and blue - what would you conclude the colours meant? - L2 & N or N & L3?), so if I did oversleeved black with brown for the switch drop I'd probably oversleeve the other core brown as well.


    Definitely not C - black means L2, so not at all appropriate for a single phase circuit.


       - Andy.
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