General Lighting Question

[J.C.E]

Am a 1st year apprentice and just want to get my head around the wiring of domestic lighting...

3plate: You take a 1.5 t+e from c/u to first lighting point (L,N,E) and then loop in and out of each lighting point (hench being called loop-in method aswell as 3plate?)

then take another 1.5 t+e from the light down to a 1way switch...brown is L, blue is SL, and green/yellow E.....but this is where I get confussed with where the brown and blue goes (when the terms perminent live and switch live I hear used!)

2plate: I beleive is the same as 3plate but you take a 1.5 t+e from the c/u to the first switch and loop each switch, then take a SW up to the lighting points...correct?

Is there a more common method that is used between 3plate and 2plate, why is this?

Then I know if you want 2way lighting, its just like the 1way I explained above but with a 3core from the switch to a second switch, C-C, L1-L1, L2-L2...... correct?

Then I am pretty lost with intermediate switching?!...so any help on this is wanted!

Thanks

 

[kung]

 

[Adam W]

By "bulb" I presume they mean 'lamp' rather than running a cable out to the flowerbed and terminating it at the underground vegetation.

 

[Des 56]

Am a 1st year apprentice and just want to get my head around the wiring of domestic lighting...


then take another 1.5 t+e from the light down to a 1way switch...brown is L, blue is SL, and green/yellow E.....but this is where I get confussed with where the brown and blue goes (when the terms perminent live and switch live I hear used!)


Thanks

I very often read on this forum of sleeving blue switch wires on a new twin+E installation

Doesn't anybody routinely use twin brown for this purpose ?

Twin brown is made with switch drops in mind, and I find it hard to understand why, when suitable cable is available, that brown/blue is used so readily
Then having to sleeve a wrong coloured cable to conform to regs

Why break regs routinely to then have to sleeve to re comply by not using the manufactured cable for the job,economically it doesn't make sense and I can think of no other reason
It does not seem right that apprentices are schooled in conveniance wiring by mentioning routinely of oversleeving blues at the switch

I want another poll

 

[kung]

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[Adam W]

Personally I would prefer to be able to easily identify which is the feed and which the switched live.
Also I can't be doing faffing around with all different cable types when I don't need to.

 

[J.C.E]

I very often read on this forum of sleeving blue switch wires on a new twin+E installation

Doesn't anybody routinely use twin brown for this purpose ?

Twin brown is made with switch drops in mind, and I find it hard to understand why, when suitable cable is available, that brown/blue is used so readily
Then having to sleeve a wrong coloured cable to conform to regs

Why break regs routinely to then have to sleeve to re comply by not using the manufactured cable for the job,economically it doesn't make sense and I can think of no other reason
It does not seem right that apprentices are schooled in conveniance wiring by mentioning routinely of oversleeving blues at the switch

I want another poll

I guessing its because you can use t&e for blue and brown and for brown and brown (with the use of brown sleeving)

but you can't use double brown t+e for blue and brown (well without sleeving it blue)

so this answers itself surely!

 

[kung]

Just noticed ! oh crap there isnt a delete reply option anymore