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WHY CANT I JUST USE THE DEFAULT TABLES INSTEAD OF DOING A CALCULATED ARC FLASH ANALYSIS?

April 26, 2017analysis ARC calculated Default doing Flash tables

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WHY CANT I JUST USE THE DEFAULT TABLES INSTEAD OF DOING A CALCULATED ARC FLASH ANALYSIS?

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By performing a proper arc flash analysis, you can ensure that your workers have the proper protective safety equipment while avoiding the expenses and lost productivity that may result from over or under specification of PPE that can happen when using default tables of NFPA 70E. An arc flash analysis may also help you to eliminate some arc flash hazards all together. WHY ALL THE FOCUS ON ARC FLASH? Historically, the shock hazard has gotten the most attention in electrical safety since it was so common and well understood. It wasn’t until the early 1980’s that a paper “The Other Electrical Hazard: Electric Arc Blast Burns” by Ralph Lee was published in the IEEE Transactions on Industrial Applications. Dubbed as the second major hazard of electricity, we began to realize the need to educate and protect workers from the dangers of arc flash.