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In the 2014 Edition of the National Electrical Code (NEC), the last sentence of the first paragraph in Sec. 500.5 (A) states: “Where pyrophoric materials are the only materials used or handled, these ...
Section 300.8 of the National Electrical Code (NEC) specifically states that cable tray containing electrical conductors shall not contain any pipe, tube, or equal for steam, water, gas, air, etc. or ...