Looking at some SELV transformers I have for ELV downlighters it mentions using a special cable, presumably one made by the manufacturer or any other cable suitable by the regs. The outlets look like they are designed for 2-core flex by the size, but can normal 1.5mm T+E be used?
I had to do some concealed wiring a while back and I planned to use a transformer for each lamp, but now I'm using two transformers for 5 lamps - this would mean using the T+E I've already run straight out of the transformers rather than feeding them.
I could change the wiring if I had to but it would be hassle - I perosanlly can't see why T+E would be a prob as long as the earth is cut back at each end?
Also it mentions not crossing the incomer and outgoing - I presume this is for isolation/interference reasons between LV & ELV? I can't be 100% sure that the cables won't cross in at least one place - is this a problem in practice?
I had to do some concealed wiring a while back and I planned to use a transformer for each lamp, but now I'm using two transformers for 5 lamps - this would mean using the T+E I've already run straight out of the transformers rather than feeding them.
I could change the wiring if I had to but it would be hassle - I perosanlly can't see why T+E would be a prob as long as the earth is cut back at each end?
Also it mentions not crossing the incomer and outgoing - I presume this is for isolation/interference reasons between LV & ELV? I can't be 100% sure that the cables won't cross in at least one place - is this a problem in practice?