is 6amp always used for lighting?

[Gforce]

Just spitballing.

If a particular house required many lighting arrangements far exceeding say 1400 watts on one floor is a larger mcb/fuse and cable size ever used-or would you always use a seperate circuit for each 1400 watt load.

Hope this makes sense.

 

[green-hornet]

I had a customer who wanted 22 50w downlights fitted in the ceiling. I split this load between two circuits.

You can if needed go up to 2.5mm and fit 10amp mcb,s but it is rare that you would do so in a house.

Many commercial properties are done in 2.5mm and 10amp breakers depending on load etc. You also have to comply with Part L1 and L2 so LED lighting is becomming more popular.

 

[GreekIslandLover]

I think most fittings are designed to take 1.5mm cable, and that 2.5 might be too big to physically fit and/or terminate neatly. But if the fittings will take 2.5 cable, and the cable calcs work out then I see no reason not to use a larger mcb.

 

[Gforce]

Thanks guys

 

[Theorysparky]

you could in theory use 1.5mm with a 10amp mcb

voltage drop allowing.

2300 watts

 

[Robojin]

you could in theory use 1.5mm with a 10amp mcbvoltage drop allowing.

2300 watts

23m+ and you hit 3% if my maths is correct :|

 

[SPECIAL LOCATION]

Most rewires I do I stick downstairs lights on 10A MCB!

Lounges can tend to have loads of "decorative multi bulb" fittings!

 

[GreekIslandLover]

Reminds me of a callout I did last winter...

Call was no lights in the lounge. It couldn't wait until morning because it was felt to be a "Elf 'N Safety" issue, and the council didn't want to be sued. It was christmas time - had to wear sunnies driving down the street to avoid serious eye damage from the xmas lights. Got inside to find out they had tried to put up two "Decorative multi bulb" fittings and had screwed it up bigtime. When questioned about the fitting of these things, they told me that the wiring had always been like that, but worked with the old lights. (yea right).

So fixed the problem and turned the lights on. They promptly turned them off because they were too bright and they always used the standard lamp. Why that warranted a callout I have no idea.

 

[binky]

If you check the regs, there is a section about maximum ampage for certain light fittings, and stuff like a standard ES fitting can take up to 16A, hence the lighting could be fitted easily to a 10A MCB if required. It came up in my 17th update exam.

 

[Apache]

Reminds me of a callout I did last winter...Call was no lights in the lounge. It couldn't wait until morning because it was felt to be a "Elf 'N Safety" issue, and the council didn't want to be sued. It was christmas time - had to wear sunnies driving down the street to avoid serious eye damage from the xmas lights. Got inside to find out they had tried to put up two "Decorative multi bulb" fittings and had screwed it up bigtime. When questioned about the fitting of these things, they told me that the wiring had always been like that, but worked with the old lights. (yea right).

So fixed the problem and turned the lights on. They promptly turned them off because they were too bright and they always used the standard lamp. Why that warranted a callout I have no idea.

You could see Badgers lights from Dorset?

 

[Andy™]

You could see Badgers lights from Dorset?

you could probably see badgers lights from space!