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OSG 7.3.2 cables in walls and partitions

hertzal123
In the above,item d states the cables can be protected by earthed steel conduit or,

Item e then states :mechanical protection sufficient to prevent penetration of nails,etc,

but no mention of earthing..

I have a situation with a short 200mm horizontal run outside the zones.

I could slide a lenght of earthed conduit over,but then the earth connection would be plastered

over and could not be inspected.

If I treat the conduit as mechanical protection,it would not need earthing?

Wondered what others would do.

                                                        Regards,Hz

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    Flexishield logo
    Developed for use in partitions and building voids

    Flexishield cable



    Flexishield has been specifically developed for applications where cables are required to be concealed within partitions and building voids, at a depth of less than 50mm.



    Flexishield’s main feature is it’s ability to fail safe when used as part of an electrical circuit that is penetrated by a sharp metallic object. The cable has now been designed to fail safe at 200 amps under nail penetration conditions, as such it will operate an MCB of up to 40A Type B or up to 20A Type C this surpassing the requirements of BS8436.  A fully compliant cable, Flexishield is a cost effective solution to meet the 18th Edition of The Wiring Regulations BS 7671:2018 for concealed cables at a depth of less than 50mm, Regulations 522.6.201 to 522.6.204.



    Flexishield is a protected fixed wiring cable, it uses a bonded aluminium tape which gives excellent mechanical resistance and acts as an effective screen to help reduce electrical interference. Flexishield has been independently certified to BS 8436 (300/500v) and IS 273 (600/1000v) by BASEC.



    The Range



    Flexishield as standard comes in the range of 1.5 to 4.0mm2 to BS 8436 300/500v and the 6.0mm2 to IS 273 600/1000v. All available with stranded conductors of 2, 3 and 4 cores and a CPC of equal cross sectional area. Standard sheath colour is white, core colours as per the harmonised wiring codes and supplied on 100m drums. Options by request are available with sheath and core colours, drum lengths and 600/1000v ratings on the 1.5 to 4.0mm2 sizes.



    So do we just connect the C.P.C. to an earth terminal as usual? Or do we have to gland the cylindrical foil in any special way?


    Z.


Reply
  • 0

    Flexishield logo
    Developed for use in partitions and building voids

    Flexishield cable



    Flexishield has been specifically developed for applications where cables are required to be concealed within partitions and building voids, at a depth of less than 50mm.



    Flexishield’s main feature is it’s ability to fail safe when used as part of an electrical circuit that is penetrated by a sharp metallic object. The cable has now been designed to fail safe at 200 amps under nail penetration conditions, as such it will operate an MCB of up to 40A Type B or up to 20A Type C this surpassing the requirements of BS8436.  A fully compliant cable, Flexishield is a cost effective solution to meet the 18th Edition of The Wiring Regulations BS 7671:2018 for concealed cables at a depth of less than 50mm, Regulations 522.6.201 to 522.6.204.



    Flexishield is a protected fixed wiring cable, it uses a bonded aluminium tape which gives excellent mechanical resistance and acts as an effective screen to help reduce electrical interference. Flexishield has been independently certified to BS 8436 (300/500v) and IS 273 (600/1000v) by BASEC.



    The Range



    Flexishield as standard comes in the range of 1.5 to 4.0mm2 to BS 8436 300/500v and the 6.0mm2 to IS 273 600/1000v. All available with stranded conductors of 2, 3 and 4 cores and a CPC of equal cross sectional area. Standard sheath colour is white, core colours as per the harmonised wiring codes and supplied on 100m drums. Options by request are available with sheath and core colours, drum lengths and 600/1000v ratings on the 1.5 to 4.0mm2 sizes.



    So do we just connect the C.P.C. to an earth terminal as usual? Or do we have to gland the cylindrical foil in any special way?


    Z.


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