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Standard for Purged and Pressurized Enclosures for Electrical Equipment

This standard provides information on the methods for purging and pressurizing electrical equipment enclosures to prevent ignition of a flammable atmosphere, whether introduced into the enclosure by a surrounding external atmosphere or by an internal source.

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NFPA members and public sector officials may submit a question on an NFPA code or standard. Responses are provided by NFPA Technical Staff on an informal basis.

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