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  • NFPA
    NFPA 496: Standard for Purged and Pressurized Enclosures for Electrical Equipment
    This title can only be subscribed to with another NFPA title (See details)
    Edition: 2008
    $187.74
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Description of NFPA 496 2008

Per NFPA's requirements, when purchasing NFPA 2021 Standards and/or 2020 NFPA 70 (NEC), you must subscribe to at least one more NFPA Standard to complete your purchase. In order to fulfill this requirement, we automatically add 2019 NFPA 900 to your cart. This title may be removed during checkout if you choose to add a different NFPA standard to your cart, and pricing will be recalculated accordingly.

Protect electrical equipment in flammable atmospheres by following the protection techniques outlined in the 2008 NFPA 496.

NFPA 496: Purged and Pressurized Enclosures for Electrical Equipment contains requirements for the design and operation of purged and pressurized electrical equipment enclosures. This protection technique is used in Class I and Class II hazardous (classified) locations to reduce or prevent the presence of flammable materials within electrical equipment enclosures as specified by NFPA 70™: National Electrical Code®. NFPA 496 also includes chapters covering protection of analyzers and rooms housing analyzers as well as a chapter on pressurized control rooms.

Consistent with the 2008 NEC®, the 2008 NFPA 496 includes the following updates to help control fire hazards:

  • A new requirement to mark purged and pressurized enclosures with an asphyxiation hazard warning where the protective gas is other than air
  • Correlation with the NEC requirements on equipment temperature ratings

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About NFPA

The mission of the international nonprofit NFPA, established in 1896, is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.

 

The world's leading advocate of fire prevention and an authoritative source on public safety, NFPA develops, publishes, and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks.

 

NFPA membership totals more than 70,000 individuals around the world

 
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