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3 core & earth
- Thread starter grifter
- Start date
Yes, 1mm² is fine.
For some unknown reason 1.5mm² has become a fashion.
For some unknown reason 1.5mm² has become a fashion.
That rather depends on the load and length of the circuit.
1.0mm cable can be 70 metres when load is 500 Watts ( 2.2 Amps )
Will be supplying 8 down lights in a 5x3 metre room.
40W at most.
1.5mm² is a useless cable that has no purpose in any domestic property.
Buying it is simply throwing money away for no reason.
Are you talking specifically about 3C+E (in which case I would probably agree with you) ?
1.5 mm² T+E certainly has good/valid purposes in a domestic property (fused spurs/branches from ring/radial final circuits, 16A circuits {e.g. immersions}, many 20A radials etc.) - in which cases it is cheaper and uses less copper resources than does 2.5 mm².
I certainly agree that 1.5 mm² cable on 5A/6A lighting circuits has never made any sense, and I really don't understand why/how it ever became fashionable!
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