IEEE 1584-2002

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1. Overview1.1 ScopeThis guide provides techniques for designers and facility operators to apply in determining the arc-flashhazard distance and the incident energy to which employees could be exposed during their work on or nearelectrical equipment.1.2 PurposeThis guide presents methods for the calculation of arc-flash incident energy and arc-flash boundaries inthree-phase ac systems to which workers may be exposed. It covers the analysis process from field datacollection to final results, presents the equations needed to find incident energy and the flash-protectionboundary, and discusses software solution alternatives. Applications cover an empirically derived modelincluding enclosed equipment and open lines for voltages from 208 V to 15 kV, and a theoretically derivedmodel applicable for any voltage. Included with the standard are programs with embedded equations, whichmay be used to determine incident energy and the arc-flash-protection boundary.1Single-phase ac systems and dc systems are not included in this guide.2. ReferencesThis guide shall be used in conjunction with the following standards. When the following standards aresuperseded by an approved revision, the revision shall apply.ASTM F-1506-01, Standard for Performance Specification for Flame Resistant Textile Materials forWearing Apparel for Use by Electrical Workers Exposed to Momentary Electric Arc and Related ThermalHazards.2ASTM F-1959/F-1959M-99, Standard Test Method for Determining the Arc Thermal Performance Value ofMaterials for Clothing.CFR 29, Subpart R, Part 1910.269, Occupational Safety and Health Standards—Electric Power Generation,Transmission, and Distribution.3CFR 29, Subpart S, Part 1910.301 through 1910.399, Occupational Safety and Health Standards—Electrical.IEEE Std 141™-1993, IEEE Recommended Practice for Electric Power Distribution for Industrial Plants(IEEE Red Book™).4, 5IEEE Std 142™-1991, IEEE Recommended Practice for Grounding of Industrial and Commercial PowerSystems(IEEE Green Book™).IEEE Std 242™-2001, IEEE Recommended Practice for Protection and Coordination of Industrial andCommercial Power Systems(IEEE Buff Book™).IEEE Std C37.010™-1999, IEEE Application Guide for AC High-Voltage Circuit Breakers Rated on aSymmetrical Current Basis.IEEE Std C37.20.7™-2001, IEEE Guide for Testing Medium-Voltage Metal-Enclosed Switchgear forInternal Arcing Faults.NFPA 70-2002, National Electrical Code(NEC).6NFPA 70E-2000, Electrical Safety Requirements for Employee Workplaces.3. DefinitionsThe following definitions apply to this standard. Additional definitions can be found inThe AuthoritativeDictionary of IEEE Standards Terms,Seventh Edition [B13].7