Raceways Exposed to Different Temperatures [300.7, 2020 NEC]

300.7 Raceways Exposed to Different Temperatures – https://www.MikeHolt.com/code. Where raceways are exposed to different temperatures, section 300.7 of the NEC requires us to take measures to prevent condensation inside the raceways. How this is accomplished, and when and where this rule applies, is the topic of this podcast.