wheats8
01-05-2013, 10:48 AM
Hi,
Im looking to give a quotation for a cold room but abit unsure how to calculate the correct size mains cable required to ensure the job is safe. I know the system needs a 20A breaker but not sure what size cable would be safest to use...also is the ampage of the rotary isolator worked out on the breaker size or the cable size?
Thanks
Im looking to give a quotation for a cold room but abit unsure how to calculate the correct size mains cable required to ensure the job is safe. I know the system needs a 20A breaker but not sure what size cable would be safest to use...also is the ampage of the rotary isolator worked out on the breaker size or the cable size?
Thanks