I'm wiring a new 220v outlet (with the help of my step-father) but I'd just like to make sure he is doing it correctly and that I understand a little bit more... Basically, I'm trying to wire a new ...

Article 314 contains installation requirements for outlet and pull boxes, junction boxes, conduit bodies, and handhole enclosures. These rules can seem arbitrary, but there really is logic behind them ...

Your garage wiring probably worked fine when it only had to feed a door opener and a single outlet. The trouble starts when ...