Following on from one of the answers if I may.....
Really don't want to be the cause of any drift to what is an excellent thread, but I do have a question related to one of the original ones (about the junction box). My house has a light switch in the family room (inner side of exterior wall) which controls 4 downlights that are fitted under the eaves (cut into the cement sheet) in what is now our pergola area outside (obviously!). They are 240v downlights (I know as I had to change a bulb in one, but don't tell Nev I did it....). Now I had assumed that the active from the switch would run up in the wall cavity into the space in the eaves and go into a junction box which would then feed out 4 seperate actives to the lights. However, the area where this would be is not accessable due to the cathedral ceiling in the room, meaning the only acess to the box would be by removing the eave sheet or unscrewing the relevant roof sheet (Colourbond roof). Assuming again, that this installation has been done to code, would this mean that they should be daisy-chained together much like the lighting circuit actives are at the back of the light switch? If so, I do not believe this to be the case as I removed the assembly when I replaced the bulb and only remember seeing a single cable (3 core) to the light, although will have to pull one out to double check that.
.....and having just read that, can I also apologise for the almost absurd amount of brackets I have used!
(I'd answer the questions, but to be honest I'd only have a go at some of those jobs if I had a copy of the standards, which I don't, but again, a good thread)
"I'll find him for three. but I'll catch him, and kill him, for ten. For that you get the head, the tail, the whole damn thing......."