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What are the benefits of conducting an arc flash hazard study?

  • January 2010
  • Number of views: 535
  • Article rating: No rating

Mike Darby
Darby Electric Co., Inc.
Anderson, South Carolina 
Management Services Committee Member

We should start with this: What exactly is an arc flash study?

An arc flash study must be conducted in order to comply with the National Fire Protection Association (NFPA) Standard 70E. Beginning with the fault current available from your utility service, the fault energy available at your various electrical cabinets is calculated based upon fuse and circuit breaker ratings, wire sizes, and lengths of the circuits. Labels are created and applied to the equipment to identify the hazard classification ratings. The hazard classification ratings determine what level of Personal Protective Equipment (PPE) is required in order to service the equipment. Requirements may vary from essentially nothing, to safety glasses with long sleeves, up to a complete “spacesuit” for proper protection. You can do it yourself if you are qualified, but there are some benefits to working with an experienced professional.

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