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building regs don't stipulate cable colour do they?
well they do in appendix D of part p
http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADP_2006.pdf but whether this means it is law or just explanatory I don't know! maybe more delving into the law required
the "approved documents" are not law.. they are guidance to the law and often branch into areas of non statutory regulations..
Part P of the building regs in it's simplest form says
Schedule 2 then lists the kind of work that is notifiable, but ALL work is covered by part P1 above..
Part P of the building regs in it's simplest form says
the area that this regulation is intended for is electrical installations that are in, fed from or attatched to dwellings, and in the gardens or lands of a dwelling where the suppliy is from inside teh dwelling..
Schedule 2 then lists the kind of work that is notifiable, but ALL work is covered by part P1 above..
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B@ll@x
There should be a membrane above the joists and below the roof tiles. The cellotex depth is less than the joists, I think its 75mm usually but certainly no more than 100mm which is less than the joist depth. So you can pull the cellotex downwards while cutting it to avoid damage to the "felt" above. There should also be ventilation in the soffet.
Sam, in terms of enough depth for the fittings, dont forget you have the thickness of the plasterboard (12mm) and most builders I work for also overboard the cellotex with a 20mm thick insulation before plasterboard.
This means even with my voids in the thick cellotex, there is still a thin layer of insulation left after cutting the holes for the lights. Admittedly, the insulation is less effective.
EDIT: Sam, I have assumed that this is a vaulted ceiling, i.e you have a pitch roof and the ceiling below follows the angle of the roof and hence you have limited space, i.e the joist depth + plasterboard etc ?
All the issues regarding heat loss and vapour barriers aside, you might want to choose a lamp that doesn't put out a lot of heat, such as LED or CFL. Even fire rated fittings get HOT with halogen lamps, and it's asking for trouble in a confined space.
bit confusing as reading thishttp://www.theiet.org/publishing/wiring-regulations/part-p/
but on searching the S.I's I have to admit I cant find anything to the effect that the above quote is statutory so therefore I am going to change my view and now agree with you coljack (and Bas)
for now
And there is a good case to say that the law requires you to use old colours to extend/modify old installations if you can....
well with that I can't argueAnd there is a good case to say that the law requires you to use old colours to extend/modify old installations if you can....
to use old with old, common sense if you ask me(if only we were allowed to use it these days) twas just a bit unsure on the actual law seems my assumptions may have been wro wro sorry can't say that word I would much rather say that you two are correct
You are - just note it as a departure on the EIC...
MMm - stick end of wrong, I got - mmm.
No no no. BAS really means if you use common sense, it must be listed as a departure from conventional practice on the EIC
S
sammoseley
dunny123,
yes as you say it's a vaulted ceiling which follows the line of the roof, with 5" joists.
thanks for all the replies, I will speak to BCO again regarding what exactly needs to be above the light in terms of insulation.
yes as you say it's a vaulted ceiling which follows the line of the roof, with 5" joists.
thanks for all the replies, I will speak to BCO again regarding what exactly needs to be above the light in terms of insulation.
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