S
shaggie16
Hoping someone can help.
New conservatory being built, with 450mm dwarf cavity wall, brick outer, thermalite inner, no cavity insulation.
I need to have power and lighting cables run, and my initial thouhts were in capping on the thermalite which would then be covered by dot and dab plasterboard.
I am told not allowed to do that, (something to do with horizontal runs of cable x mm from the floor) and have been told they should be run in the cavity. Well, OK, that's no bother and will use conduit to do so.
Now, rightly or wrongly, I want (purely for effect) some dimmable low voltage halogen "guide lights" set recessed in to the wall on the inside - These in fact:
20W G4 LV Reflector|Recessed Wall Lights
My problem is this. They are 20W G4 lams, and there will be 8 of them on a dimmer. My initial plan was to have one transformer and run the lot off that, but the low voltage cable run would be way too long I think and the voltage drop would be hideous.
How can I get around it? Multiple transformers, yes, but being a cavity wall, there won't be space anywhere to put the extra transformers, so where can I put them? They are small items, but obviously in the cavity secured to the thermalite is a no no because of damp. I don't really want to lose 2cm of space behind the plasterboard, plus that would be a nightmare if (sorry when) one of the transformers failed.
SO, any ideas how I can achieve this?
I have looked for other ways of doing it, ie LED fittings, mains voltage halogen fittings, but the requirements are a shallow recess as these are going into a cavity wall, and they must be dimmable. Most LED guide lights I have seen of similar design are cold white and are NOT dimmable.
Please help!
Thanks in advance
New conservatory being built, with 450mm dwarf cavity wall, brick outer, thermalite inner, no cavity insulation.
I need to have power and lighting cables run, and my initial thouhts were in capping on the thermalite which would then be covered by dot and dab plasterboard.
I am told not allowed to do that, (something to do with horizontal runs of cable x mm from the floor) and have been told they should be run in the cavity. Well, OK, that's no bother and will use conduit to do so.
Now, rightly or wrongly, I want (purely for effect) some dimmable low voltage halogen "guide lights" set recessed in to the wall on the inside - These in fact:
20W G4 LV Reflector|Recessed Wall Lights
My problem is this. They are 20W G4 lams, and there will be 8 of them on a dimmer. My initial plan was to have one transformer and run the lot off that, but the low voltage cable run would be way too long I think and the voltage drop would be hideous.
How can I get around it? Multiple transformers, yes, but being a cavity wall, there won't be space anywhere to put the extra transformers, so where can I put them? They are small items, but obviously in the cavity secured to the thermalite is a no no because of damp. I don't really want to lose 2cm of space behind the plasterboard, plus that would be a nightmare if (sorry when) one of the transformers failed.
SO, any ideas how I can achieve this?
I have looked for other ways of doing it, ie LED fittings, mains voltage halogen fittings, but the requirements are a shallow recess as these are going into a cavity wall, and they must be dimmable. Most LED guide lights I have seen of similar design are cold white and are NOT dimmable.
Please help!
Thanks in advance