Article 725 provides the requirements for Class 2 circuits in Part III. The definitions for Class 2 circuits can be found in Art. 100. In the November 2020 issue, we discussed the general requirements ...
Courtesy of www.MikeHolt.com. Based on the 2023 NEC. Question: Class I, Division 1 locations are those areas in which ignitible concentrations of _____ can exist under normal operating conditions.