In article ,
Pedge wrote:
My question is, if the current wiring is 1.5mm can I use the 1mm wire to
connect to the wall unit switch and a 1mm live wire to feed off the
current 1.5mm cable?

Am also looking at wiring the ceiling downlights with 1mm cable to be
fed off the current 1.5mm cabling.

Can this be done or will there be an overload?

Assuming you have the standard 6 amp MCB on the lighting circuit, 1mm will
be fine.

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*I believe five out of four people have trouble with fractions. *

Dave Plowman London SW
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