You don't actually need to fuse down again for the second run, since the fuse for the first one (which can't be greater than 13A, and is probably smaller) would be adequate to protect the 1.5mm² cable.i have taken a fused spur from the ring main. which is fused down to power a light under the stairs. from that fused spur can i use 2.5 cable to another fused spur and fuse it down, then 1.5 cable to supply an outside light.
You could use 1.5mm t&e or even 1.0mm t&e, without down fusing.i have taken a fused spur from the ring main. which is fused down to power a light under the stairs. from that fused spur can i use 2.5 cable to another fused spur and fuse it down, then 1.5 cable to supply an outside light.
I'm not totally sure what your saying. If there is a fuse (anything up to 13A, so 3A would be fine) in the spur to the indoor light, then you can just go straight down to 1.5mm cable from the output of the fused connection unit (FCU) without having to do any further fusing - regardless of whether the FCU is switched or not.sorry my mistake,,, the fused spur is a switch spur, should that make a difference or carry on witht the 2.5m to the next fused switch spur and then 1.5 to the light???????? i think it was a 3amp fuse for the light,
As you may know, that's a very controversial issue which has been very rigorously debated many times, incluing in the current thread entiteld 'Holiday Snaps', or something like that.AIUI if the light is fitted on the exterior house wall and the cable runs straight through the wall to the light then it's not notifiable.
Yes, fusing down to 5A or 3A would be preferable, for that reason (and it sounds as if the OP has already done that). However, what I was actually thinking of was your recently expressed opinion that running power sockets off a lighting circuit violated the regs' requirement for 'circuit separation' - in which case I was wondering whether you would feel the same 'the other way around' (and, if not, why not?) - although, as I wrote to teh OP, I wouldn't personally be concerned (it happens in many a garage/shed, for starters!).In theroy you can use up to a 16A supply for lighting unless something else restricts one. Normally since the ceiling rose is rated 5A that means in real terms 5A max.
See my comments above, and the thread I refer to there.As to Part P that's your problem I am uncertain as to if with no exterior connection it is required or not. So with a pre-wired lamp and the connection is made in the house but not kitchen or bathroom then may not be required but it's up to you to check on that.
Quite so. Actually, it's not so much "guides made and approved by the IEE (I presume you mean IET)" which are the issue- but, rather, Approved Document P which is issued by the Office of the Deputy Prime Minister and is meant to repesent guidance on compliance with the reqirements of the Statutory Instrument. The fact that there are things in, say, the OSG. which are not in BS7671 itself is another issue - but neither of those represent 'law', and neither address notifiability.Yes a discussion made many times, with regards to outdoor lighting equipment. ... Schedule 4 indicates the work is notifiable but guides made and approved by the IEE contradicts this, by qualifying otherwise "if light is fixed to wall of dwelling and no external connections (with exclusions of cables routed through special location and kitchens)". Who is right, well schedule 4 is the legal requirements and the guides are the guides to how to comply to schedule 4. In a court of law you will have to abide be the statuary document, rather than the guide.
Interesting. The contradiction/inconsistency is clearly not acceptable. Whether it is Schedule 4, Approved Document P or both which need amendment obviously depends on the intentions of the authors. There are certainly a number of aspects of Schedule 4 which, if I were 'them', I would probably want to revise/clarify but, since "I am not them" (and am nont a self-certifying electrician) I'm not so keen that they do! We'll see!Even though I have connected my local council regarding schedule 4 at certain flaws within it's composition and the person I was in contact with, did accepted there were errors within it and these were to be amended in 2013.
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