The term “ampacity” is used hundreds of times throughout the Code and is defined in Art. 100 as “the maximum current, in amperes, that a conductor can carry ...

I'm a US-trained and US-based electrical engineer. When I want to figure out the the size of a wire I'll need, I reach for my NEC and go to Table 310.16 (most of the time), and it tells me what to use ...

Violations of the National Electrical Code (NEC) regarding transformers are often encountered while performing electrical plan reviews. There are far too many NEC requirements to explain in just one ...