Article 225: Outside Branch Circuits - Get the inside scoop on outside branch circuits

摘要

Article 225 provides installation requirements for outside branch circuits and feeders that run on (or between) structures or poles (Fig. 1). The NEC differentiates between buildings and structures, but for convenience we'll refer to both of them as structures. Other articles also pertain to outside branch circuits (see Other Articles Related to Outside Branch Circuits on page 71); most of these are application-specific. Lighting is the most common application. Make sure you don't place 277V luminaires within 3 feet of platforms, fire escapes, or windows that open [225.7(C)] (Fig. 2 on page 69). See 210.6(C) for the types of luminaires permitted on 277V or 480V branch circuits.