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NOTE: This is an unformatted excerpt from our online fire protection training library.

General Requirements in the NEC

Enclosures

Indoor & Outdoor Enclosures

Section 110.28

Section 110.28 is a general requirement that addresses enclosures for outdoor use and indoor use.

All enclosures are required to provide protection from incidental contact with the enclosed equipment. Indoor enclosures are required, at a minimum, to provide protection from falling dirt in addition to protection from whatever other environmental conditions are present. Outdoor enclosures are required to provide some protection from falling dirt, rain, snow and sleet, or even submersion, depending on the exposure.

NOTE: This is an unformatted excerpt from our online fire protection training library.

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