2 way lighting circuit with 2 banks of spots

[lazza]

Hi,
Just wondering if anyone can confirm what i already fear....I've been fault finding for a friend as i am part qualified. He has a 2 way lighting circuit in the kitchen controlling 2 banks of spots and some under counter lights.

The under counter lights are ok but the spots have all become inoperative, they are pre 17th edition and dont have their own individual transformers but appear to be wired back to a central point which is inaccessable from the ceiling.

I've tested the light switches and they are in good working order, i've tested the switch wires and have both continuity and correct voltage present but when i tested across the light fixtures there was no voltage present..

Do you think I'm gonna have to take up the above floor and perhaps replace the transformer or have i overlooked something obvious???

Comments greatly appreciated..

 

[Sintra]

I seem to remember a lot of the early 12v lighting systems only had one transformer.

They did and they were a real pain as you had to use larger csa cables for the higher current.

 

[chocolate]

Just wondering why you don't ditch using a tranformer and install 230V GU10 fire-rated downlights instead ????

You still need to find where the feed is, etc. But now you can wire directly to each fitting. No transformers to worry about.

Piece of cake !!!!!

Cheaper too !!!!!!!

 

[diditrain]

Try sticking your mobile phone through the holes in the ceiling and take some photo`s if your phone has flash. May help you to locate transformers.
If there are transformers then they are ELV not low voltage