Your point is?
Did you look for information on mixing Band I and Band II cables, or was that something you didn't look for because you had no idea it even existed?
Wall Mounting A TV
- Thread starter securespark
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I looked for burying cables in the wall for a TV and as I said what I found was the power needing to be on an RCD protected circuit which it is I didn't see anything about separating cables no doubt you think I need to rip the whole lot and do it again?
I wonder where you looked. And what you looked for. Because I doubt you thought "I wonder if it's OK to put all those cable types in one bit of trunking, or if different voltage bands should be separated? I'd better find out".
I'm not having a go at you - but so often we get people here believing that all they have to do to be able to rewire their house is to ask about the things they think they need to know, and failing to consider the problem of them not asking about things they don't know because they have no idea they need to know them. They simply don't realise that they don't know.
I was wondering if this would be an example to show them....
I'm not having a go at you - but so often we get people here believing that all they have to do to be able to rewire their house is to ask about the things they think they need to know, and failing to consider the problem of them not asking about things they don't know because they have no idea they need to know them. They simply don't realise that they don't know.
I was wondering if this would be an example to show them....
Yes I suppose it would as I had no awareness that cables were banded into differing groups but I'm not sure when I stated I could rewire a house, having said that I'm sure one day an opportunity may arise where I could have a go and may well go down the route of doing so as I'd like to know if I could do it but when that time arises I will be putting alot more effort in than I did regards the TV cables and will have building control to help keep me in line
Surprising that you chose half-round trunking.
Rectangular at the same width & depth would've obviously given you more room. Could've inserted a piece of smaller trunking within, to contain your power lead.
Not wishing to take sides here, but it would have meant that it was then compliant.
I don't think it's really a case of needing to take sides, because I don't think that there is any disagreement about what would be required to be compliant. However, ...... !
Yes, I suppose that would then be compliant. However, as I and others have said, there's no safety issue unless/until both the insulation and sheathing of the mains cable have burnt or melted away and, if that happened (out of sight), I don't think it would be long before a further 'layer' of plastic trunking/conduit/partition/whatever also burnt or 'melted away' - even if 'compliant'!
Kind Regards, John
I never suggested you had 
That would be a tad OTT....
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Possibly - you have to check the detailed spec for the specific cable that you are considering using. Belden RG59 is, for example. My point was that you can't ASSUME that they are not suitably rated, and that whilst some manufacturers might not be, other might be.
Also, with the right adapters, you can run all of those interconnections over Cat5
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All true.
However, as I have implied before, that does not alter the fact that, at least in terms of safety considerations, my personal feeling is that the regulation we are talking about is 'a solution looking for a problem'.
There may, of course, be other (functional) reasons for not wanting cables carrying 50Hz to be in proximity to audio/data/control/whatever cables, but that is nothing directly to do with safety and, perhaps more important, is nothing to do with the voltages concerned - 12V 50Hz could potentially be just as much of a (functional) problem.
Kind Regards, John
I totally agree, I was responding to BAS's reply. I would (and did) not worry about it myself.
In domestic installations, yes. It makes more sense in some industrial applications, where people have been known to mix MV and ELV in the same trunking...
Well, yes, but that is obviously a totally different matter, and not remotely relevant to a DIY forum.
Having said that, if the MV cable (I didn't think 'MV' existed anymore?!) was adequately insulated and sheathed to be deemed 'safe to touch', I don't really see why 'touching' an (insulated and sheathed) ELV cable would be actually be a concern.
No MV/HV cable is safe to touch, or safe to be close to any other cable, once it has burst into flames, and that remains the case regardless of the 'voltage rating' of the ELV cable.
Kind Regards, John
No, it doesn't, but I didn't think a reference to HV would be correctly understood on a DIY forum.
'Safe to touch' does not necessarily equate to 'safe to remain in contact with for prolonged periods that can include temperature cycling and prolonged periods of vibration'.
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