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In its most basic definition, an arc flash is an explosion caused by arcing electricity. These arcs are caused by improper engineering, maintenance and work practices. Results of these explosions are devastating to the
worker and organization. The costs to the organization over the next five or ten years are generally millions of dollars. The OSHA citation cost will be insignificant compared to the costs of equipment damage, downtime,
medical bills, insurance premium increases, workers compensation, attorney fees, accident investigation costs, retraining and bad publicity.
Section 130.3 of the NFPA 70E® standard establishes requirements and methodology for a flash hazard analysis, which defines flash protection boundaries and appropriate personal protective equipment for use by employees within the flash protection boundary. The goal of this provision is to reduce the possibility of workers being injured by an arc flash. The analysis determines the worker’s potential incident-energy exposure (in calories per square centimeter).
This analysis is a building process that requires the results of one step to move on to the next.
One-line Diagrams
Data Gathering
Short Circuit Study
Arc Flash Calculations
Protective Device Coordination
Final Report
Labeling
Complete Compliance
Navigate using the PREVIOUS and NEXT buttons at the bottom of each step.
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