≥6-core flex?

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Hi folks,
I asked a similar question a few years back, and I suspect that the answer hasn't changed much since then, but ...

...I need a small length of ≥6-core (well, ≥5-core + earth) mains-rated cable, presumably flex (for use in a 6A lighting circuit), but life starts getting more difficult beyond 5-core (or 4C+E). There's plenty of 6- and 8-core (and beyond) out there called alarm/signal cable and, whilst a fair bit of that is only 'rated' for ELV, some claims to be LV-rated (commonly "500V") - but that usually has only 0.2 mm² conductors.

As was the case those years ago, one exception is a 7-core 0.75 mm² flex offered by TLC with 6 black-insulated (numbered) cores and one G/Y one -and seemingly an OD of only 7.7 mm. That would certainly do the job, although I suppose I'd be even happier if the cores were not all black. Is anyone aware of anything else which is currently available (in short lengths) ? The TLC one ...
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Thanks.

However, I didn't explain, but the reason I want this is because I want to get 5 cores (+ earth) to a (will be 2-gang) light switch which currently is a 1-gang "2-way" one connected with 1mm 3C+E which gets there through some ancient and small buried metal conduit. The current cable seems to be 'mobile' within the conduit, so I have some hope that I will be able to use it to pull a new cable through - but that's most likely to work if the new cable is as small and as flexible as possible.

For that reason I don't think that SY, with its greater size and armour, would be a very clever idea, but the YY could well be the best bet?
 
I think for "euro spec" mains cables numbered cores are the norm once you go over 5 core.

I suspect the cable TLC are selling is "as good as any" for the task you have in mind.
 
I think for "euro spec" mains cables numbered cores are the norm once you go over 5 core.
Fair enough. I suppose one fairly soon runs out of easily-distinguished colours if one gets much beyond 5.
I suspect the cable TLC are selling is "as good as any" for the task you have in mind.
Yep, that's how it also seems to me. Interestingly, I've just looked back and it was 2019 when I previously asked a similar question (for a totally different reason), and the "as good as any" answer was the same back then!
 

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