How to wire 8 LV ceiling lights?

[wamballa]

Hi
I am interested to understand more about wiring 8 LV ceiling lights. I have taken down ceiling and can see wiring is currently like this: (I believe wire A comes from Consumer Unit under stairs)

I would like to modify existing lighting so that - no change to light switch 1(it still turns on light fitting1), change light switch 2 so that it turns on 8 LV ceiling lights. I believe the wiring would look like this:

Is this the correct way of doing it?

Cheers Steve

 

[hairyben]

Thats the general idea. loop from one downlight to the next.

The junction box must be accessible, a chocbox is normally handy as you can push it through a downlight hole, unlike a 20A box with small downlights.

 

[GaryMo]

The Click 20A 4 terminal junction boxes I use are 58mm in diameter which fit through all holes I've drilled for the various makes of downlighters I've fitted.

How would they compare size wise to a choc box? I can't see there being much in it either way.

 

[wamballa]

THanks for your replies. I changed my drawing now to reflect the cable looping between the transformers:

- does this look right now?
- would this use 1mm2 cable?
- where to buy a 58mm junction box?

That's all

Cheers[/img]

 

[Taylortwocities]

How would they compare size wise to a choc box? I can't see there being much in it either way.

There is a difference that some of the registration bodies have been clamping down on (pun intended).

A round terminal box is only valid for use if it is screwed to a background and the cables are clipped.

This is because you must have strain rlief on the cables if the box is floating loose.

Choc box have this feature http://www.tlc-direct.co.uk/Products/CHOCBOX.html

Also you could use one of these - also gives you loop in capability and you can easily disconnect the tranny while doing insulation tests
http://www.tlc-direct.co.uk/Products/TLCT100C.html

 

[tSpark]

just being picky now but should the title to this subject be, how to wire in 8 ELV Lights??

If accessability to your junction boxes was gonna be a problem you could always use maintenance free junction boxes like these http://www.tlc-direct.co.uk/Products/ASJ804.html

accessability to these is not required. Just something to bear in mind

 

[hairyben]

The Click 20A 4 terminal junction boxes I use are 58mm in diameter which fit through all holes I've drilled for the various makes of downlighters I've fitted.

How would they compare size wise to a choc box? I can't see there being much in it either way.

Choc boxes I find easier & neater, you tape the cables together, dress them into a 5A connecter then snap the choc box around them, feeding the light from the other end.

20A JB will be fine if dressed right, nothing worse than trying yank a 20A JB with cables spidering out of every hole and going all directions though a small downlight apature.

 

[17thman]

does op-er live in a flat?