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Service conductors passing over a roof shall be securely supported by substantial structures. For a grounded system, where the substantial structure is metal, it shall be bonded by means of a bonding jumper and listed connector to the grounded overhead service conductor. Where practicable, such supports shall be independent of the building.

Related Code Sections

230.29 Wiring and Protection, Supports Over Buildings
Service conductors passing over a roof shall be securely supported by substantial structures. For a grounded system, where the substantial structure ...
230.29 Wiring and Protection, Supports Over Buildings
Service conductors passing over a roof shall be securely supported by substantial structures. For a grounded system, where the substantial structure ...
504.3 Prescriptive Compliance Method, Construction
construction. Walkways and railings located over or supported by combustible roofs in buildings of Type III and IV construction are permitted to be of wood ...