NFPA 497 Classification of Flammable Liquids Gases or Vapors 2017 2017th Edition by Nfpa 145591407X 9781455914074

NFPA 497 Classification of Flammable Liquids Gases or Vapors 2017 2017th Edition by Nfpa- Ebook PDF Instant Download/Delivery:145591407X,9781455914074
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ISBN 10:145591407X
ISBN 13:9781455914074
Author:Nfpa 

n places where flammable gases or vapors, flammable liquids, or combustible liquids are processed or handled, their release into the atmosphere could result in their ignition by electrical systems or equipment. Work with today’s best practices to address potentially deadly and destructive hazards with the 2017 edition of NFPA 497: Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas.

This important Recommended Practice also provides information on specific flammable gases and vapors, flammable liquids, and combustible liquids whose relevant combustion properties have been sufficiently identified to allow their classification into the groups established by NFPA 70®: National Electrical Code® for proper selection of electrical equipment in hazardous locations.

NFPA 497 Classification of Flammable Liquids Gases or Vapors 2017 2017th Table of contents:

Chapter 1 Administration

1.1 Scope.
1.2 Purpose.
1.3 Relationship to NFPA Codes and Standards.

Chapter 2 Referenced Publications

2.1 General.
2.2 NFPA Publications.
2.3 Other Publications.
2.4 References for Extracts in Recommendations Sections.

Chapter 3 Definitions

3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions.

Chapter 4 Classification of Combustible Materials

4.1 National Electrical Code Criteria.
4.2 Behavior of Class I (Combustible Material) Gases, Vapors, and Liquids.
4.3 Conditions Necessary for Ignition.
4.4 Classification of Class I Combustible Materials.

Chapter 5 Classification of Class I (Combustible Material) Areas

5.1 National Electrical Code (NEC).
5.2 General.
5.3 Class, Division, Classified Locations.
5.4 Zone Classified Locations.
5.5 Unclassified Locations.
5.6 Extent of Classified Locations.
5.7 Discussion of Diagrams and Recommendations.
5.8 Basis for Recommendations.
5.9 Procedure for Classifying Locations.
5.10 Classification Diagrams for Class I, Divisions.
5.11 Classification Diagrams for Zones.

 

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