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Arc Flash Regulations

U.S. Arc Flash Codes

In the United States, there are four main regulations relating to arc flash:

  • OSHA 29 CFR-1910, Subpart S provides the legal requirement for employers to guard against arc flash hazards. It sets general requirements for safe work practices, PPE, and hazard analysis.
  • NFPA 70, called the National Electrical Code (NEC), provides a requirement for arc flash labels.
  • NFPA 70E, "Standard for Electrical Safety in the Workplace," outlines the specific procedures and practices to be followed for OSHA compliance and safety when working on live equipment.
  • IEEE 1584, "Guide to Performing Arc Flash Calculations," provides the formulas necessary for analyzing arc flash hazards.

Arc Flash Codes in Other Countries

CSA Z462-12 provides the electrical safety standards for Canada. This is the second edition of CSA Z462.

These are a few of the key changes to this high-value, nationally-recognized safety standard:

  • Improved direction on hazard identification and risk assessment
  • New safety procedures and assessment tables for work around DC systems
  • New tables for the selection of personal protective equipment
  • Added guidance on safe procedures and training
  • New Annexes on safety around high-voltage systems and electrostatic discharges
  • Expanded Annexes and reference materials on Safety Management Systems, Hazard Identification, and Risk Assessment

More information about CSA Z462-12 »

In Europe, the standards published by the International Electrotechnical Commission (IEC) in IEC 298 are widely referenced.

Throughout the rest of the world, either NFPA 70E or IEC 298 standards may be followed.

The information presented in this document was obtained from sources that we deem reliable; Graphic Products does not guarantee accuracy or completeness. Graphic Products, Inc. makes no representations or warranties of any kind, express or implied. Users of this document should consult municipal, state, and federal code and/or verify all information with the appropriate regulatory agency.

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