When calculating branch circuit loads, what's the maximum load you’re allowed? The limit is this: The total calculated load on a given branch circuits can't exceed the rating of that circuit [220.18].

And because residential voltage always stays the same, electricians measure load and capacity in units of current, which are amperes, or amps. In basic electrical calculations ... the minimum capacity ...

There is no question that the National Electrical Code (NEC) is far and away the No. 1 most important topic to EC&M readers. And every three years — when a new Code cycle comes along — we team up with ...