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 ...

Finding the right wire gauge and amperage is essential when installing, extending, or rewiring a circuit. The wire gauge, or thickness, must match the circuit's amperage rating to safely handle the ...

The ampacity of a conductor can be determined either by using the tables in accordance with 310.15(b), or under engineering supervision as provided in 310.15(C). FPN No. 1: Ampacities provided by this ...

Article 310 contains the general requirements for conductors, such as their insulation markings, ampacity ratings, and conditions of use. It does not apply to ...