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Orange Alu Split Con

Martyn
Hi All, 


As per the title I need a 25m ish length of 25mm Orange Alu split con, cant seem to get it from the cable suppliers unless I order to be manufactured with crazy minimum order quantities.


Cant use standard Split con as it’s PVC and I need LSF for an escape route, cable forming part of a BNO replacing a degraded cotton service.


It’s only manufactured in 25 & 35mm apparently, could use either but prefer 25mm.


Anyone with a short length?


Cheers


Martyn
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  • Former Community Member
    0 Former Community Member
    12 March 2006 09:37 PM
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    briandoherty


    Posts: 313

    Joined: 08 May 2004

     

    BS7671 Regulation 522-06-06 currently allows split concentric cables (to BS4553) to be installed outside "safe zones". However, one of our engineers queried such an installation with the IEE and with the relevant panel (Panel B of the national committee JPEL/64) of British Standards.

    Our point was that with split concentric cable, the neutral conductor is:

    a) not insulated (BS4553 does not call for "insulation" on the neutral conductor, but just calls for it to be identified by a polymeric extrusion to distinguish it from the concentric earth conductor) and

    b) not protected against mechanical damage, as it would be if the cable was armoured.

    The IEE / BSI committee agreed with us, and confirmed that insulated concentric cables should be removed from the associated parts of BS7671 by the time the 17th edition is issued (January 1st 2008) or sooner if an amendment is issued before then.


    Brian


     

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  • Former Community Member
    0 Former Community Member
    12 March 2006 09:37 PM
    User is offline View Users Profile Send Private Message Print this message




    briandoherty


    Posts: 313

    Joined: 08 May 2004

     

    BS7671 Regulation 522-06-06 currently allows split concentric cables (to BS4553) to be installed outside "safe zones". However, one of our engineers queried such an installation with the IEE and with the relevant panel (Panel B of the national committee JPEL/64) of British Standards.

    Our point was that with split concentric cable, the neutral conductor is:

    a) not insulated (BS4553 does not call for "insulation" on the neutral conductor, but just calls for it to be identified by a polymeric extrusion to distinguish it from the concentric earth conductor) and

    b) not protected against mechanical damage, as it would be if the cable was armoured.

    The IEE / BSI committee agreed with us, and confirmed that insulated concentric cables should be removed from the associated parts of BS7671 by the time the 17th edition is issued (January 1st 2008) or sooner if an amendment is issued before then.


    Brian


     

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