b) where subject to corrosive influences, if enamel is the only protection from corrosion of ferrous channel raceways and fittings Article 384 covers the use and installation of strut-type channel ...
When working with strut-type channel raceway, when is it permissible to use a snap-fit metal cover to provide electrical continuity for receptacles mounted in the cover? A. Any time. This is always ...
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