1. Bell circuits typically use a cable size of 1.0mm² or 1.5mm². 2. Lighting circuits typically use a cable size of 1.5mm² or 2.5mm². 3. Power circuits typically use a cable size of 2.5mm² or 4.0mm². 4. Cooker control circuits typically use a cable size of 6.0mm² or 10.0mm².