Indeed so - that's the usual situation, other than for cables below floors/above ceilings/in loft spaces.
Kind Regards, John
Service channel behind coving ...
- Thread starter FRAN1870
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Kind Regards, John
It's up to you how you interpret the rules.
Is cable behind coving not concealed?
Is coving not a wall?
If covered by an RCD then it is not a problem.
Is cable behind coving not concealed?
Is coving not a wall?
If covered by an RCD then it is not a problem.
I asked those questions first
As I implied, I don't know - as I said ....1...that reg does not talk about 'concealed' but, rather, 'installed in a wall'.
2...if 'behind' coving is regarded as 'in a wall', then what about behind dado/skirting/whatever trunking (particularly if it looks just like dado rail/skirting etc.). I could add that I would not really regard coving as being 'a part of a wall' (or ceiling) any more than I would regard dado/skirting etc. as being 'part of the wall'.
Indeed - but, as you said, in the case of a distributioin circuit, upstream RCD protection might not be desirable - leaving more tedious/expensive options.
Kind Regards, John
Not sure how much artistic licence there is in that, but floorboards run at right angles to joists.
If you do need to drill "every joist" then you only need to lift one or two runs of boards.
If cables run parallel to joists you only need to lift a few boards as you can fish, or with T/E and typical joist spacing probably just push, cables from one place to another.
I can't think why you'd ever need to lift every floorboard.
Really?
Or only in places where they are allowed?
Which thread?
Who said it would?
BUT....
What sort of steel channel, and why would it be used?
Ok not "every" floorboard but I will need to drill every joist and there's a lot... it would also mean moving some wardrobes and a really heavy bed lifting some recently fitted LVT flooring too AND the floor level from the main house to the rear wing also drops by two steps so I've got that to negotiate and then STILL have to channel down the wall to the outside lighting. Having this small box channel negates pretty much all of that.
Nope there's cables and gas pipes chased into the walls all over the place. Some at 45 degree angles so I assume that's not allowed.
There was a comment earlier on this thread "that would get complicated"
If the issue is protection then I was talking about this kind of stuff .. https://www.electricaldirect.co.uk/...qjZlQTuP9Xp_4xFd8PxoCKr0QAvD_BwE&gclsrc=aw.ds
No, that does not give mechanical protection.
3mm. Steel is considered the minimum for such.
3mm. Steel is considered the minimum for such.
This one about getting rather involved
Do yo not think it already has become more involved?
You said compicated.
You said compicated.
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I have used this to rewire flats, and as it is classed as trunking it means the cables in it do not require RCD protection
https://www.mkelectric.com/Documents/English/EN MK Catalogue/Ega Cornice.pdf
https://www.mkelectric.com/Documents/English/EN MK Catalogue/Ega Cornice.pdf
Complicated / involved ... same thing really?
It's quite simple, my electrician needs to run some cables so I'm trying to minimise the disruption to the rest of the house by creating some small voids.
It won't be as lavish as this but something like this on a smaller scale?
Do these not meet regulations?
It's quite simple, my electrician needs to run some cables so I'm trying to minimise the disruption to the rest of the house by creating some small voids.
It won't be as lavish as this but something like this on a smaller scale?
Do these not meet regulations?
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No. If it involves steel protection then it involves more than not; therefore more involved.
What ever you do it is all easy; therefore not complicated.
Some might argue that boxing in take more thought than drilling a hole so is therefore more complicated but I won’t be so pedantic 
This is one situation where MICC cable for the submain may be useful - it's completely screened, so no interference with AV cabling, it's smaller diameter than armoured, and you may be able to use a smaller conductor size too (with the caveat that if you are running the cable at a higher temperature the terminations must be able to handle that too), and it has a very small bending radius so will go round corners inside coving.
Personally although I have happily used standard plaster coving for power and lighting cable up to 32A on RCD, I wouldn't be happy about a submain. That's an awfully big bang if it's drilled into.
Personally although I have happily used standard plaster coving for power and lighting cable up to 32A on RCD, I wouldn't be happy about a submain. That's an awfully big bang if it's drilled into.
What's also very simple is that the only person who can tell you what is acceptable and what is not is your electrician.
He will be the one signing an EIC to say that he was responsible for the work and that it complies with the Wiring Regulations, and that includes design.
When he notifies the work to the council he will be declaring that it complied with the Wiring Regulations, so the EIC has to be valid.
Just ask him.
Or show him the route - you might be surprised what he can do.
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