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Not being over sensitive at all. You took a dig!
can you use 3 phase SWA cable for 230vAC single phase?
One option is a T&E alongside an insulated and sheathed single brown. (I won't use the term "PVC/PVC" as PVC cables are actually prohibited for the past few years. The minimum cable requirement is Dca, -s2, d2, a2.)
For smoke/CO detectors we actually have a specialist cable now called "RD415".
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Would that have to be twin brown plus a single brown?
Sorry was thinking of 2 way lighting again
We've asked this before (and similar for 2-way light switching) and I think the answer is that they have to use two separate cables (hence my comment about cost and resources).
No. The fan would require a neutral. You could use twin brown with an insulated and sheathed single blue, but that would be less logical than a brown & blue with insulated and sheathed single brown.
The conversion method isn't common here. Conventional two-way (and intermediate) switching is generally employed.
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Yes I edited I was thinking of 2 way, is that how you would do that twin brown and a single brown?
Fair enough, but one still needs, one way or another, to have more than two conductors.
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Twin brown and a single brown?
I guess so - or twin brown and a single blue, depending on how things were arranged. However, either would involve two cables rather than one.
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Yes, seems a bit daft not to use 3 core
Do things work better with conductors all the same colour?
If not then what is the benefit of or need for such regulations?
Can you be sure the previous person has done it all correctly or do you have to test anyway to make sure (rhetorical)?
If not then what is the benefit of or need for such regulations?
Can you be sure the previous person has done it all correctly or do you have to test anyway to make sure (rhetorical)?
Brown & Earth from the luminaire. Twin brown between switches. Single brown from last switch to luminaire switched phase connection. Other methods are of course possible.
Clearly it's a safety requirement, irrespective of individual views of the need for or wisdom of the Rule.
Quite so - what a good few of us in this 'Electrics UK' forum would probably regard as 'unnecessarily complicated/messy
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