Current through Register Vol. 54, No. 45, November 9, 2024
Section 39.215 - Guarding in damp or hazardous locations(a) Conductors in damp locations or where exposed to corrosion, if not in waterproofed conduit, or in waterproof metal sheaths in other suitable ducts, shall be effectively isolated and supported on insulators of a suitable type.(b) Conductors in locations where inflammable gas or flyings normally exist shall be in grounded metal conduit or metal sheathed cable. Fittings and outlets of such conduit and cable shall be electrically and mechanically continuous with the conduit or metal sheath, and the conduit shall be sealed by the use of suitable potheads or equivalent devices to prevent entrance of gases.