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.

Free 130 Page Arc Flash Handbook

Real-world advice and insight into preventing arc flash accidents.

Arc Flash Codes in Other Countries

The second (2012) edition of CSA Z462 is scheduled for release soon! The upcoming edition is expected to offer Canadian electrical workers technical updates standards and provide considerable resources for improving work and safety. CSA-Z462 will be based in part on NFPA 70E and reflect Canadian legal requirements and workplace conditions.
In association with the NFPA, the Canadian Standards Association (CSA) is now finishing up on these new arc flash safety standards. The code is scheduled for release in January 2012.
Below 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
• Robust design and binding for use in the field and for on-the-job training and reference (hard copy version)

Check back soon for more information about CSA as it becomes officially available.

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.

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