I assumed, possibly incorrectly, that I would be able to get 1mm T&E in
black as opposed to white. Apparently this is not the case? Is this stuff
I need to wire 12 mains voltage halogen spots in series off an existing
fixture and need black (or brown) cable to do it. Using conduit is not an
option and nor is painting it.
Well, guessing you're actually going to wire starfish style, or in groups
rather than in series. That conduit cable would be up to the job power wise,
but needs mechanical protection of some sort to pass muster. I can't imagine
a cable where the sheath was the same colour as one of the conductors.
You should stick with standard conductor colours if possible, but a workable
bodge would be black flex such as 3182Y (H05VVF2 is the euro code) - two
core up to 2.5mm2 is widely available or the next step up - tougher cable
such as the H07RNF often found on heavy tools.
Is cable rigidity also important to the installation? Will it be on show?
12 x 240 volt lamps in series Mike? Might be a bit dim. And dark when one
bulb goes. Anyway we all know what is intended here, just a problem with
Had a quick look at a few cable manufacturers and it seems as Tony thought,
that black sheathed T&E is not available. Maybe with the new conductor
colours it could become a possibility.
Some rigidity is important, the cable will be surface mouted underneath a
wooden gallery with the spots shining across the walls and down to floor
level. They will be wired in series, a big loop going round the underside of
the gallery on all 4 sides of a hall. The idea being that the wiring will be
"invisible" that far up (about 4 metres) if positioned properly, hence the
need for a dark colour (you can see grey).
I don;t think I'd get away with painting it before hand as it needs to be
pulled through various holes etc so paint would come off and painting after
would mean masking it up first etc which 4m up a ladder wouldn't be easy on
a 50m run. Plus it just adds another day, if not two, to the job and I just
can;t face spending 2 days painting bits of wire! =:-(
Black cable is easy to obtain and cheap, it is black mains cable thats
the problem. The copper conductors would be thicker, but there would
be no 2nd layer of insulation, as double insulation is irrelevant at
The OP said 50m of cable were needed: if this is divided among the 12
lights, no worries, but if it were one single 50m run then LV could be
OP would need to use tables of Vdrop to pick the necessary wire size.
It may be expensive, but you can get Hi-Tuf in black. I don't know if you
can get 1mm. 1.5mm isn't a problem and is suitable for lighting circuits.
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