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 ...
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 ...
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