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5 core - shared CPC

vantech

Hi, 

Any issues with a 5 core 2.5mm with a shared CPC between 2 separate final circuits. 

The 5 core ands into a junction box feeding 2 separate radial circuits for sockets. 

Core 1 = Live c1

Core 2 = Neutral c1

Core 3 = Live c2 

Core 4 = Neutral c2 

Core 5 = CPC for both C1 and C2 

Thanks. 

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  • 0

    In principle there's no problem - it's the same situation as where steel conduit is used as the c.p.c.. In practice, a bit of extra care is needed - e.g. so that the c.p.c. of a live circuit isn't disconnected when working on the other one, so a label or two might be useful (if not a direct regs requirement).

        - Andy.

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  • 0

    In principle there's no problem - it's the same situation as where steel conduit is used as the c.p.c.. In practice, a bit of extra care is needed - e.g. so that the c.p.c. of a live circuit isn't disconnected when working on the other one, so a label or two might be useful (if not a direct regs requirement).

        - Andy.

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