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522.6.203 RCD protection required for cables in metal stud walls, what about ceilings?

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  • I suppose I had better ask my question.


    In the last week I have completed two landlords EICRs in flats, the outer walls are brick and block, the inner partition walls are timber stud, the floors between stories are concrete with plaster board ceilings suspended on steel ceiling joists.


    So the internal walls are timber, but the ceiling has a metal frame with the twin and earth lighting circuit and other cables lay across the metal work and across the back of the plaster board, as I discovered by removing a down light fitting to inspect above the ceiling.


    Neither flat had RCD protection to the lighting circuits when I arrived, but they did when I left.


    So how would you code the lighting circuits without RCD protection in a flat with cables concealed behind plaster board dabbed onto block work, in timber stud walls, lay across a metal framed ceiling, also supplying the bathroom light and extractor fan?


    Andy Betteridge
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  • I suppose I had better ask my question.


    In the last week I have completed two landlords EICRs in flats, the outer walls are brick and block, the inner partition walls are timber stud, the floors between stories are concrete with plaster board ceilings suspended on steel ceiling joists.


    So the internal walls are timber, but the ceiling has a metal frame with the twin and earth lighting circuit and other cables lay across the metal work and across the back of the plaster board, as I discovered by removing a down light fitting to inspect above the ceiling.


    Neither flat had RCD protection to the lighting circuits when I arrived, but they did when I left.


    So how would you code the lighting circuits without RCD protection in a flat with cables concealed behind plaster board dabbed onto block work, in timber stud walls, lay across a metal framed ceiling, also supplying the bathroom light and extractor fan?


    Andy Betteridge
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