3/28/2024 0 Comments Arc flash boundary 2015![]() The boundary was thus eliminated in order to prevent confusion and to make the 70e standard easier to use and understand.ĭespite being eliminated as a health and safety standard, the PAB may still be used within the context of electrical research or for documentary purposes. While the limited approach boundary marks the closest point at which an unqualified person can approach exposed energized equipment, and the restricted approach boundary marks the point at which workers must wear shock-protection equipment, the prohibited approach boundary did not mandate any new action be taken by workers. The PAB was eliminated because it did not trigger a mandatory action by employees. The limited and restricted approach boundaries, as well as the arc flash boundary, remain in effect. It was eliminated by the NFPA in the 2015 edition of the 70e standard. The PAB was developed by the National Fire Protection Association (NFPA) as part of its 70e standard governing electrical safety. The two lower-risk approach boundaries are the restricted approach boundary and the limited approach boundary (lowest risk). ![]() On top of that, it is easy to remove and replace should a system get an upgrade so that the arc flash boundary is further away and. One or the other method must be selected for each piece of equipment, but not both. Using floor marking tape is not only an easy and affordable option, but it is also highly visible. Paragraph 130.5 (C) of the 2015 edition of NFPA 70E highlights two methods to follow to determine what arc flash PPE is necessary for a job task: Incident Energy Analysis Method or Arc Flash PPE Category Method. The prohibited approach boundary is the most high-risk of three approach boundaries used to delineate risk-level zones around electrical equipment. These boundaries will help to educate everyone who works in the area so that the danger can be kept to a minimum. ![]() ![]() Safeopedia Explains Prohibited Approach Boundary ![]()
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