25mm cable ???

I cannot remember is Part L applies to new builds or rewires. If this is the case for a rewire then ...
I may be wrong, but as far as I can make out, the requirements of Part L regarding lighting only apply to new builds or if there is a "change of use" - so I don't think that a rewire (or even major renovation of the building which did not involve a change of use) would invoke these requirements.

Kind Regards, John

It includes rewiring of lighting circuits, reasonable provision should be made to obtain the benefits of efficient lighting.
Section 1 43
 
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Lamps is the correct term used for bulbs.
'Correct' in the eyes of the electrical trade,
And this forum is dedicated to the electrical trade, so enough said!
But that's the whole point - this site is not 'dedicated to the electrical trade', it's a DIY site. DIYers, like virtually all of the general public, do their shopping in high street shops or 'sheds'.

I've just done some searches on the B&Q, Homebase & Wickes websites. When I search for 'lamp', I get hundreds of hits, but not a 'light bulb' in sight. If I search for 'bulb' or 'light bulb', then I find all of your lamps, very many which are far from being 'bulb shaped'.

When you're next in one of these shops, try asking where you can find a "50W lamp" - and, if I were a betting man, I would put a fair bit of money on your not being directed to a 50W 'light bulb'!

IMO, the point of this forum is not to teach non-electricians terminology which will generally not be understood in the sort of shops they shop in :)

Kind Regards, John

If I searched B&Q website and inputted, chrome switch it would very likely give a hundred pages of flat pack assembled furniture.
This site is dedicated to electrical issue, if people want to come here to be better informed, I see no reason to not give them the correct technical term. You can do as you choose!
 
It includes rewiring of lighting circuits, reasonable provision should be made to obtain the benefits of efficient lighting. Section 1 43
We must be looking at different versions. Section 1.43 in mine is about hot water storage vessels! ... I assume what you are looking at is equivalent to the 1.54 in my version, which I mention below.

The problem with the version I'm looking at and maybe also yours) is that everything explicit is says about lighting occurs before the start of Section 2 ("Work on Existing Dwellings") and the only reference to lighting in Section 2 is, as I said, in relation to works involving 'change of use' of the premises - the implication seemingly being that (in the absence of 'change of use') Section 1 only applies to new builds.

So, given that the equivalent in my version (1.54) of what you quote above, which reads "1.54 Reasonable provision should be made for dwelling occupiers to obtain the benefits of efficient lighting....." is in Section 1, my interpretation was that it only applies to new builds or 'change of use' situations. Am I interpreting incorrectly?

Kind Regards, John
 
I've just done some searches on the B&Q, Homebase & Wickes websites. When I search for 'lamp', I get hundreds of hits, but not a 'light bulb' in sight.
Try it on the Toolstation site.

Are we back to discussing dictionary democracy where more than 50% getting a meaning wrong makes it right?
 
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This site is dedicated to electrical issue, if people want to come here to be better informed, I see no reason to not give them the correct technical term.
I have no problem with telling people, for the sake of their education, that electricians use a different terminology from what is used 'in the high street', but I wouldn't want to mislead them into thinking that the electricians' terminology/jargon is the 'correct' terminolgy for them to use in normal life, or when shopping in that high street.
You can do as you choose!
I definitely will, and I'll try not to give people the impression that if they walk into a 'shed' or high street shop and ask for a "50W lamp" or a "Low Voltage Light" they are likely to get what you would expect them to get on the basis of electricians' terminology/jargon. However, I will, if appropriate 'point out to them' what the "electrician's term" for the item is, so that they can understand both languages.

Kind Regards, John
 
I may be wrong, but as far as I can make out, the requirements of Part L regarding lighting only apply to new builds or if there is a "change of use" - so I don't think that a rewire (or even major renovation of the building which did not involve a change of use) would invoke these requirements.
You are wrong - this is accurate:

Interpretation

2
. (1) In these Regulations, unless the context otherwise requires—
.
.
“controlled service or fitting” means a service or fitting in relation to which Part G, H, J, L or P of Schedule 1 imposes a requirement;
.
.
.
Meaning of building work

3
. (1) In these Regulations “building work” means—
.
.
.
(b)the provision or extension of a controlled service or fitting in or in connection with a building;

Requirements relating to building work

4
.
.
.
(3) Building work shall be carried out so that, after it has been completed—
.
.
(b)any building in, or in connection with, which a controlled service or fitting is provided, extended or materially altered; or

(c)any controlled service or fitting,

complies with the applicable requirements of Schedule 1 or, where it did not comply with any such requirement, is no more unsatisfactory in relation to that requirement than before the work was carried out.
 
I've just done some searches on the B&Q, Homebase & Wickes websites. When I search for 'lamp', I get hundreds of hits, but not a 'light bulb' in sight.
Try it on the Toolstation site.
I don't doubt that you're right - probably Screwfix and plenty of others, too. However, they are not the places where most members of the general public (like DIYers) buy their 'light bulbs' and 'low voltage lighting'.
Are we back to discussing dictionary democracy where more than 50% getting a meaning wrong makes it right?
It's not about right and wrong, but rather 'effective communication'. If we were talking about 50%, it would be a bit different, but do you seriously believe that 50%, or anything remotely as low as 50%, of high street shops/sheds would correctly understand your 'correct' terminology - whether in relation to 'lamps', 'low voltage' or whatever??

Kind Regards, John
 
"Lamps" vs "bulbs": Neither here nor there.

"ELV" vs "LV": Of huge importance given the use of the correct definitions in a law which applies to everybody doing electrical work in dwellings in England or Wales.
 
It's excellent using incorrect terms on here because in most cases electricians and DIYers know what's being talked about.
 
I though we had established that dimming halogens does, in fact, increase their life
No, it decreases it because it b*****s up the halogen cycle.
As I've said, on the basis of what I've read (which, of course, may be wrong) although it upsets the halogen cycle, and thereby decreases life, that is more than offset by the increase in life due to the reduced temperature - so, although the increase in life due to dimming is not as great as it would be with a non-halogen lamp, it is still a net increase.

Kind Regards, John
 
You are wrong - this is accurate:
Interpretation
2
. (1) In these Regulations, unless the context otherwise requires—
“controlled service or fitting” means a service or fitting in relation to which Part G, H, J, L or P of Schedule 1 imposes a requirement;
Yes - so maybe we're back to the fact that I may be looking at an old version, since the sections (within Section 2) in mine on 'replacement of' or 'material alterations to' those 'controlled services' refer to many of the requirements indicated in Section 1, but none related to lighting. What is the date of the document you're quoting from? (I'm probably not looking hard enough, but I haven't yet managed to find a date on my one!)

Kind Regards, John
 

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