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Single Core (Shielded) LV Cabling for Audio Equipment

Adrian B
Hi All


Quick question regarding suitable cabling for LV supplies to Audio equipment.....

I have a client (Sound Studio Designer) who is insisting on the LV power cabling to serve many different types of Audio equipment being shielded.  Firstly, I have never specified anything of the sort previously, normally specifying 6491 or 6242 etc., so is there something out there that is suitable?  Secondly, has anyone had any experience in this type of installation, and if so, what are the thoughts on single core or multi core cabling with shielding?  I personally would have thought that shielded singles would be the preference, but what do I know, I am quite obviously not a specialist in this field.


Any advice/ help would be hugely appreciated as always.


Thanks


Adrian B.
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  • 0
    There are plenty of 'shielded' power cables about - something to BS 8436 would seem an obvious choice to me (usual caveats for reduced c.s.a. protective conductors) - or if you don't need the foil to act as a c.p.c. then some of the more traditional  "FP" types might do. Old school might be ordinary singles in steel conduit or trunking. Some might be tempted by SWA, but there's some suspicion that the gaps between the strands might let through some interference, depending on what sort of frequencies you need to block. SY and CY type flex are probably somewhere in between.


    Whether any of that is going to be particularly beneficial is another matter. Some might observe that if you're using a common DNO LV supply that's wending its way for several hundred metres through the neighbourhood picking up all sorts of noise from every installation on the way, shielding the last few metres might not make an awful lot of difference.


      - Andy.
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  • 0
    There are plenty of 'shielded' power cables about - something to BS 8436 would seem an obvious choice to me (usual caveats for reduced c.s.a. protective conductors) - or if you don't need the foil to act as a c.p.c. then some of the more traditional  "FP" types might do. Old school might be ordinary singles in steel conduit or trunking. Some might be tempted by SWA, but there's some suspicion that the gaps between the strands might let through some interference, depending on what sort of frequencies you need to block. SY and CY type flex are probably somewhere in between.


    Whether any of that is going to be particularly beneficial is another matter. Some might observe that if you're using a common DNO LV supply that's wending its way for several hundred metres through the neighbourhood picking up all sorts of noise from every installation on the way, shielding the last few metres might not make an awful lot of difference.


      - Andy.
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