by , on April 12, 2012

Read this article on reducing exposure in LV Distribution Systems as written by Maurice M’Mello, PE-Systems Engineer of GE Energy / Industrial Solutions / Canada.

Article conclusion:   “….arc flash hazard analysis now tells us that the setting of protective devices on this basis could be detrimental to operational and maintenance personnel if an arcing fault occurs when the electrical equipment is worked on in the energized state. We must take into account the thermal limits of the human body (onset of second degree burns at 1.2cal/cmwhen selecting protective devices and their settings. Arc flash hazards are an extremely important consideration when designing electrical distribution systems.”

Click here to read the article distributed 4/5/12.


Hugh Hoagland
About author:
Hugh Hoagland is the foremost tester of clothing and PPE exposed to electrical arcs and is an arc flash expert. Read more about Hugh.

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