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Is concealed flexible conduit permitted in plaster board walls for example ? I understood conduit had to be rigid for fixed wiring and flexible conduit only permitted for final connections to vibrating or moving equipment ?

James Lawson

Perhaps I am old school but am surprised to be asked to permit flexible conduit instead of traditional rigid conduit for concealed fixed wiring with the condition that it is securely clipped horizontally or vertically in the zones  prescribed by BS7671

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    I'm assuming that as you ,ention the zones this is plastic flexible conduit, and not corrugated earthed metallic. This is unusual in the UK, but certainly  not prohibited by regs . Can I ask  what sort of cables are you putting in? - as a general rule you can get rather less far in the corrugated stuff before it jams, compared to the smooth wall straight stuff.
    Also sometimes used more as you would capping, i.e with cables that have an outer sheath, although singles would also be permitted so long as there are no gaps in the coverage.

    Mike.

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    I'm assuming that as you ,ention the zones this is plastic flexible conduit, and not corrugated earthed metallic. This is unusual in the UK, but certainly  not prohibited by regs . Can I ask  what sort of cables are you putting in? - as a general rule you can get rather less far in the corrugated stuff before it jams, compared to the smooth wall straight stuff.
    Also sometimes used more as you would capping, i.e with cables that have an outer sheath, although singles would also be permitted so long as there are no gaps in the coverage.

    Mike.

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