Article 300 is one of four Articles that form the basis for applying Chapter 3 wiring methods (the other three are Art. 310, Art. 312, and Art. 314). The requirements of Art. 300 apply to all Chapter ...

Decide how much digging you’re prepared to do and how deep your trench will be. This helps determine the type of wiring and the method you’ll use. Underground cable and wire can be installed at ...