What should we know about lighting?

[Floody]

hypothetical scenario here that I need the experienced to elaborate on.

ok, im going to add lighting circuits all from scratch in a house. I've got my 1mm/1.5mm TC&E and 3core&E.

I'm decided to go with a circuit for upstairs and a circuit for downstairs.

Ok.. Here's my questions...

does there need to be special considerations for any rooms? I.e Bathrooms/Kitchen?

 

[Baker1988]

The only consideration you need to make is for the bathroom light and switch the light should be ip rated to about ip45 and the switch should be a pull switch there is zone considerations for lighting in a bathroom like any light is ok aslong as it is 2.5 m in from floor level as this is outside any zones (but I would still use ip rated).

as for kitchen put what ever you want in unless your useing spot lights then you need to make sure there fire rated and have sufficent airflow for them too cool down eg no insulation layed on top of them but thats about it.

I think probily forgetting some thingthat I will get pulled up on haha

 

[trev]

One thing I always do in domestics is to either put the landing light on the downstairs circuit or the hall/passage(depending on if you're posh or not) on the upstairs circuit. This means that if ever DIY Dave opens either switch up for any reason he only has one circuit there and so has less chance of killing himself

 

[Floody]

So a bathroom is wired up as normal, but just make sure of IP rated lamps/switches per zone?

 

[trev]

So a bathroom is wired up as normal, but just make sure of IP rated lamps/switches per zone?

Plus manufacturers instructions on extract fans now often state that they must be fused down to 3 amps.
There's also stuff about low energy lamps in the building regs but with LED technology as it is now you don't really have to worry about all that crap

 

[Floody]

I haven't got to extractor fans in college yet. That come off the lighting circuit?

 

[trev]

I haven't got to extractor fans in college yet. That come off the lighting circuit?

Straight forward stuff mate, usually perm live, switched live and neutral off the bathroom light, through a tranny depending on height/zoning etc

 

[Floody]

Ahh easy then. Here's for the reply lads.

 

[Baker1988]

Also fans have to go to a 3 pole isolator outside the bathroom (usually above the bathroom door) then to the fan but they are rather straight forward

 

[Floody]

He anyone got a good typical circuit diagram for one? I've been googling a few and they are all different. Just one that would go in your everyday house.

 

[Baker1988]

A circuit diagram for what what u need on it

 

[Floody]

Just how an extractor fan would come from a supply, to switch, isolator etc

 

[Baker1988]

I have just drawn one for you but it wont let me upload it on my phone so I will upload it when I get home for you

 

[Floody]

Cheers baker your a diamond,

 

[Baker1988]

sorry i took so long had a problem with my broadband (didnt pay bill) sorted now though
here is a circuit and wiring diagram i have not fused them down as the bathroom light is normally the last on the circuit so i normally just fuss down the entire bathroom light and fan so i am not 100 percent on if its just the live or the switch live or both that need fuseing down but im sure you know how to add a fused spur in line there not the best drawings but you will get the general idea of things