Electrical Services, Part 14

When exposed to the weather, raceways enclosing service entrance conductors must be suitable for wet locations and arranged to drain.

When individual service entrance conductors enter a structure via the roof, they must enter through roof bushings. If they enter through the wall, they must do so at an upward slant through individual, noncombustible, nonabsorbent insulating tubes [230.52] and the conductors must be arranged in drip loops before entering the tubes.

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