- Reaction score
- 157
Is there any reason under 17th why a lighting circuit (notionally a radial) shouldn't have a "distribution" tapped off it part way along, rather than looping in at each switch or luminaire? - By this I mean a junction box, which then serves power to sets of luminaires and switches off to the side.
What we effectively end up with is a star type arrangement, with perhaps four points, with the CU at one of the points. (Do we have a name for this other than "untidy"?).
For anyone not having a wiring diagram, it could lead to some harder to understand R1+R2 or R2 measurements. My guess is it's probably happened a lot in old installations which were added to, but if all cables are within limits, is there any 17th regs reason why this might be disallowed?
Justin
What we effectively end up with is a star type arrangement, with perhaps four points, with the CU at one of the points. (Do we have a name for this other than "untidy"?).
For anyone not having a wiring diagram, it could lead to some harder to understand R1+R2 or R2 measurements. My guess is it's probably happened a lot in old installations which were added to, but if all cables are within limits, is there any 17th regs reason why this might be disallowed?
Justin
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