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Wall Cavity Wiring.

Zoomup
Good morning on this bright and sunny start,


                          Q. Which regulation(s) specifically prohibit(s) the installation of cables in brick and block cavity walls within the cavity?


in a, Older premises?


    b, Newer premises?


If regulations exist, what reasons are provided for the prohibition? Or are we just concerned about chemical damage of cable insulation if the cables are in contact with some types thermal insulation?


Z.
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    sparkiemike:




    Zoomup:


    Years of experience and the "feel" of the cable as it is installed. Cable tested afterwards.


    Z.



     




    You must have long arms if you can feel it all the way down a cavity. ?


     




    A cord with a lead mouse on the end naturally falls from wall plate to base of wall in the cavity, or to the hole for a socket box below. The cable is carefully pulled using the cord. This is easier if two people are installing the new cable, one pulling the cord  and the other feeding in the cable from above, but one person can do it, a bit like pulling in cables into conduit. No damage occurs at all as the route is normally free of obstructions and the cable runs freely.


    Z.

Reply
  • 0

    sparkiemike:




    Zoomup:


    Years of experience and the "feel" of the cable as it is installed. Cable tested afterwards.


    Z.



     




    You must have long arms if you can feel it all the way down a cavity. ?


     




    A cord with a lead mouse on the end naturally falls from wall plate to base of wall in the cavity, or to the hole for a socket box below. The cable is carefully pulled using the cord. This is easier if two people are installing the new cable, one pulling the cord  and the other feeding in the cable from above, but one person can do it, a bit like pulling in cables into conduit. No damage occurs at all as the route is normally free of obstructions and the cable runs freely.


    Z.

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