How often is arc flash training required according to the NFPA 70E?
January 10, 2023How often should an arc flash analysis be updated according to the NFPA 70E?
January 10, 2023How to do a arc flash analysis
Performing an arc flash hazard analysis involves several steps, including:
- Identifying the electrical equipment and systems that have the potential to generate an arc flash hazard. This includes a survey of the electrical system, including the main electrical service, main electrical panels, branch circuits, switchgear, and other electrical equipment.
- Conducting a detailed analysis of the electrical system, including a study of the system’s voltage, current, and power levels, as well as the available fault current.
- Using the data collected during the analysis to perform calculations that determine the incident energy levels at specific locations within the electrical system. These calculations can be done using software tools designed specifically for this purpose.
- Developing an arc flash protection boundary around the electrical equipment is the distance from the equipment at which a person could receive a second-degree burn if an arc flash were to occur.
- Developing and installing appropriate warning labels and signs on the electrical equipment and systems identified as having an arc flash hazard.
- Develop procedures and guidelines for employees who work on or near the electrical equipment and systems identified as having an arc flash hazard, including emergency procedures and the proper use of personal protective equipment (PPE).
- Training employees who work on or near the electrical equipment and systems that are identified as having an arc flash hazard in the procedures and guidelines that have been developed
- Reviewing and updating the analysis regularly, such as after major system changes or upgrades, changes in equipment, or employee turnover.
It’s important to note that performing an arc flash hazard analysis is a complex process, and it’s typically best to have an experienced electrical engineer or a qualified consultant do it, who has experience in this process.