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unless the board is in a wet area the ip rating doesnt have to be maintained :army:. Id go for the wood option with rear entry. oo er
ip ratting is not just for water ingress it is for dust aswell i think it ip4x for the top of a consumer unit
 
I find it difficult to believe people are still mounting consumer units on wood battens, I suppose at least it is somewhere for the mice to crawl into in the winter.
 
I find it difficult to believe people are still mounting consumer units on wood battens, I suppose at least it is somewhere for the mice to crawl into in the winter.
I sort of agree, nothing to do with fire rating of IP rating etc, think its just a bit pants mounting it on a piece of wood. I note Wylex offer a CU pattress, you'd think nowadays all the manufacturers would provide something in a similar vein?
 
Various threads on this subject for some time now. Reg 421.1.201 requires non combustible CU (domestic properties), non ferrous metal is deemed to be a way of achieving that. No mentioned or recommendation of using metal glands, but you can if you want. Only requirement, as it has previously been required, is to maintain the applicable IP ratings. Therefore bespoke glands or blind grommets as has been suggested, trunking, or utilise rear entry for cables. It is only the CU (or similar switch gear assemblies) that now has to be metal, not the method of entry.

Well the fundamental crux of your post is totally wrong, because it is FERROUS METAL that has been deemed as an example of a suitable material, NOT, NON-FERROUS metal.
Please.
 
Well the fundamental crux of your post is totally wrong, because it is FERROUS METAL that has been deemed as an example of a suitable material, NOT, NON-FERROUS metal.
Please.
Shame you didn't point out my mistake 15 weeks ago, it's obviously completely confused everyone since then. The rest of the post was alright though, wasn't it?
 
I find it difficult to believe people are still mounting consumer units on wood battens, I suppose at least it is somewhere for the mice to crawl into in the winter.

There is nothing wrong with doing this, it's a tried and tested technique and is still a good option on some board changes. I use trunking behind the CU so the IP rating on the back is actually maintained, so no mice will be getting in.
 
The solution is as follows.
1.buy a ot gun cabinet and mount on wall (ferrous enclosure)
2.buy plastic board from screwfix fit and make a lot on mark up.
3.cabinet has lock so safe isolation.
4.keep a shot gun in cabinet so if you see mice you can blow their heads off.

No more replies needed
 
Shame you didn't point out my mistake 15 weeks ago, it's obviously completely confused everyone since then. The rest of the post was alright though, wasn't it?

Yes the rest is right, no need for metal glands no need for intumescent materials or any sort of fire proofing.
Another option is as has been suggested put a plastic box in a non-comustible enclosure, noting that plasterboard is non-combustible...

Just the maintain the standard IP rating requirements of the enclosure as per BS7671.
Nothing wrong with going right up to the enclosure with pvc conduit or trunking, across the top, down the sides, behind, anywhere as long as the ip rating meets the regs.
 

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