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Switched neutral

Harry Macdonald
Looking at the BS7671 AMD2 out for consultation, I noticed clause 463.1.2. This shows an arrangement whereby the control device for a lighting circuit is switched by a switch on the neutral side of the device.

Clearly this works but why would anyone want to do this?
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    Which is why I was surprised to see in in BS7671 AMD 2

    It's not new to AMD 2 - it's been there since the start of the 18th. As others have said it saves an extra wire out to the rooms - and I suspect brings us in line with continental practice (where it's usual to use retractive switches and a step relay in "CU" for multi-switch arrangements rather than 2-way/intermediate switches and loads of extra wires).

       - Andy.
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  • 0
    Which is why I was surprised to see in in BS7671 AMD 2

    It's not new to AMD 2 - it's been there since the start of the 18th. As others have said it saves an extra wire out to the rooms - and I suspect brings us in line with continental practice (where it's usual to use retractive switches and a step relay in "CU" for multi-switch arrangements rather than 2-way/intermediate switches and loads of extra wires).

       - Andy.
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