what is a 6mm cable?
Answered February 1, 2020. mm = Millimetre = 1000 of a metre. The 6mm part describes the cross sectional area of the cable = how thick the cable is. 6mm cable is normally used to power a cooker and or a hob. In older propertys you may find it has been run in to supplie a shower however 10mm is more appropriate now.