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  • NFPA
    NFPA 499: Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas
    This title can only be subscribed to with another NFPA title (See details)
    Edition: 2021
    $187.74
    / user per year

Content Description

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.
Help ensure you and your team have the most current knowledge on selecting and installing electrical systems and equipment for safe use in locations classified as hazardous with NFPA 499, 2021 edition. The presence of combustible dusts in industrial settings where electrical systems and equipment are used represents a significant ignition hazard. NFPA 499, Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, provides guidance for selecting electrical systems for safe use in Class II hazardous (classified) locations in accordance with relevant codes and standards. This essential safety document delivers criteria for designating classified areas where combustible dusts are produced, processed, or handled. NFPA 499 is a must-have for: Anyone responsible for hazardous area classification in industrial facilities Facility operators, installers, and maintainers of electrical equipment used in areas where combustible dusts are present Owners or operators of industrial facilities, insurance professionals, AHJs, and enforcing officials Manufacturers of equipment for use in electrically classified process areas Design engineers/consultants, loss prevention or safety engineers The 2021 edition is updated for consistency with NFPA 70®, National Electrical Code®, 2020 edition, and the latest accepted practices in the chemical process industries. This recommended practice offers detailed guidelines, classification diagrams, and dust group classifications on an extensive list of combustible dusts. Revisions to the 2021 edition include: Updated definition of combustible flyings to combustible fibers/flyings; added definition for ignitible fibers/flyings; and clarification of the classification of combustible fibers/flyings [These changes help ensure that material posing a flash-fire or explosion hazard is evaluated as hazardous (classified) locations regardless of particle size] Inclusion of classification for portable electronic products (PEPs) to correlate with UL 121203, Portable Electronic Products Suitable for Use in Class I and II, Division 2, Class I, Zone 2 and Class III, Division 1 and 2 Hazardous (Classified) Locations Edited area electrical classifications throughout the document to correlate with the NEC® electrical classification Help safeguard lives and property in the industrial workplace by complying with NFPA 499, Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas.

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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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