I am a licensed JW in Colorado and for years we have been using the panel enclosure as the EGC.
… So, it’s an open and transparent process to change the standard. Comments that contain personal attacks, profanity or abusive language – or those aggressively promoting products or services – will be removed. e-Hazard, The table also stipulates that employers are not required to provide workers with arc flash protection for exposures below 1.2 cal/cm2 because “the expected injury from an incident will be survivable and nonpermanent.”.
In total, NFPA 70E 2018 references the hierarchy 17 times, including five times in specific requirements, said Daniel Roberts, a Mississauga, Ontario-based senior manager of electrical safety consulting for energy management specialist Schneider Electric.
The original Code document was developed in 1897 as a result of the united efforts of various
Because construction workers often face exposure to overhead power lines, Floyd suggests reassessing construction site planning methods before beginning work. For incident energy exposures of 1.2 cal/cm2 to 12 cal/cm2, the standard requires the use of hard hats, hearing protection and leather footwear, as well as one item from each of these groups: Arc-rated outerwear – such as jackets, parkas, rainwear and hard hat liners – can be used as needed. However, several past editions of 70E have featured requirements considered human error-reduction techniques. Former consultant for electrical safety and technology - ANSI Copyright 2019 -. “The objective of human performance is to identify and address human error and its negative consequences on people, programs, processes, work environment, equipment or an organization.”. This site uses Akismet to reduce spam. As the author of various accepted changes to the standard throughout his career, Floyd finds a forward-thinking approach to be beneficial. Now what? National Fire Protection Association (NFPA), NFPA 70-2017: National Electrical Code, 2017 edition (Quincy: NFPA, 2016), 34.2. An example of a minor change is the definition for cable routing assembly from the Article 100: Definitions section of Chapter 1, which appears as: Alternatively, a more substantial change to the NEC is the arc-flash hazard warning marking, for which the revision calls for additional information to be provided.
Read what other people are saying and post your own comment. NFPA 70E 2018 Standard for Electrical Safety in the Workplace. For national codes, a strict revision process is unquestionably essential, since the changes adopted to retain the standards’ relevancy and reliability generally become part of the official practice used nationwide.
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