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

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