Wiring in LV lighting without using junction boxes

[Dazmeister]

Hi,

I recently purchased 8 spots (50w) with 3 seperate transformers as I was told I needed the following:

- 2 x 210w to drive two sets of three lamps
- 1 x 105w for the remaining two lamps.

Transformers
http://www.alertelectrical.com/Ligh...10wva-12v-Electronic-Lighting-Transformer.asp

Spots
http://www.alertelectrical.com/Ligh...-fixed-square-downlight-in-Antique-Brass-.asp

After reading several posts, I understand you shouldn't use jb's unless you can easily gain access.
The diameter of the hole for the light fitting (70mm) is big enough to slot the transformer into the ceiling void but not enough to get a jb in.
What is the best or should I say correct way of wiring the lights up?

Appreciate any advice.

Thanks

D

 

[Adam_151]

Choc box

And it would have been a better idea to use one transformer per fitting IMHO

 

[Dazmeister]

Thanks,
As it happens, just bought a load (chocbox).
As for the transformers, yes it makes sense now but given wrong advice at the time of buying (being a noob). I guess the shop I bought from were either inexperienced or wanted to make more money out of me! (probably the latter)

Cheers for the response.

 

[Belle427]

you can use a smaller jb which easily fits through the hole http://www.tlc-direct.co.uk/Products/ASJ201.html

 

[xr4x4]

you can use a smaller jb which easily fits through the hole http://www.tlc-direct.co.uk/Products/ASJ201.html[/QUOTE]

you cant put those in inaccessible areas.

you need maintenance free jun boxes under floors and in celing voids.

 

[ban-all-sheds]

given wrong advice at the time of buying (being a noob). I guess the shop I bought from were either inexperienced or wanted to make more money out of me!

Well they certainly saw you coming with respect to selling you on the ludicrous notion that it can be anything other than a blindingly stupid idea to install recessed torches instead of lighting which actually works.

 

[bernardgreen]

you cant put those in inaccessible areas.

If they are wired and then pushed through the hole for the lamp then they can be accessed by removing the lamp and pulling the JB back down through the hole.

NOTE when using this method ensure the cables are well clear of the lamp otherwise heat from the lamp will damage, even melt, the cables.

you need maintenance free jun boxes under floors and in celing voids.

I have never found a reliably "maintenance free" junction box that I would feel happy with. I have seen (no names) maintenance free junk boxes. One was a nice toasted colour.

 

[Taylortwocities]

you can use a smaller jb which easily fits through the hole http://www.tlc-direct.co.uk/Products/ASJ201.html[/QUOTE]

You cannot use these, wire them up and push them up throught the hole. There is no provision for strain relief for the cables.
You can use them if they are screwed to the joist and the cables are clipped but then they are not accessible.

Choc box or these clicky have the necessary facilities and ware designed to go in a 70mm dia hole.

 

[electronicsuk]

Choc box or these clicky have the necessary facilities and ware designed to go in a 70mm dia hole.

Can vouch for the product linked to by TTC, they are excellent for this sort of thing.

 

[Atilla]

Well they certainly saw you coming with respect to selling you on the ludicrous notion that it can be anything other than a blindingly stupid idea to install recessed torches instead of lighting which actually works.

ours works quite well you bore ..............

 

[Taylortwocities]

ours works quite well you bore ..............

So before you had downlights there was a 60W lamp that lit up the whole room.

How many watts of downlights do you have now to do the same job?

 

[RF Lighting]

I could go to work and back on a 50cc scooter. It would do the job perfectly well I'm sure, but I dont.

I choose to drive a car with a much bigger engine. Sure it uses more fuel, and it cost more to buy, but it looks better, and I prefer it.

 

[bernardgreen]

I could set out to cross the outback in a 1964 Ford Popular or a modern vehicle.

I would prefer the Ford Popular because I could ( when younger ) fix almost any fault with a small tool box and a set of spares ( head gasket change took 30 minutes ) Modern cars may be luxurious but when they go wrong then it is recovery to the work shop for 90% of faults.

Luxury comes at a price.....

 

[Steve]

Modern cars may be luxurious but when they go wrong then it is recovery to the work shop for 90% of faults.

Thats not what the AA, RAC and GF say

And besides, this thread is over 3 years old.

 

[bernardgreen]

And besides, this thread is over 3 years old.

OOppss Didn't see that, must get the windscreen wipers working

Thats not what the AA, RAC and GF say

I agree, they can fix a large percentage of road-side faults but then not all those faults are mechanical. Putting a jerry can of petrol into the tank "repairs" some road side non movers.