by , on December 13, 2012
A 28 year old contract worker on a construction site in Duntroon, Australia, suffered electric shock and was taken to the hospital. Work safety commissioner Mark McCabe says it is too early to say what went wrong.  “I understand that it is a fairly young worker, a new worker, but there seems to have been...
by , on December 13, 2012
Electrical and Computer Engineering of Athens, Greece, has authored an in-depth analysis of an electrical accident that occurred when an electrician was performing work on a medium voltage transformer of the Public Power Corporation (PPC).  This could be a good learning tool for accident investigations and understanding of electrical incidents. Highlights ► Electrician tried to...
by , on December 13, 2012
A 53- year-old US Postal Service employee performing maintenance on the roof of a delivery & distribution center in Blackman Township, MI, touched a live wire.  The shock threw him backwards and off of the 16′ roof.  This is not arc blast but a shock event.  Wearing rubber insulating gloves prevents most of these events....
by , on December 12, 2012
Q&A from Littlefuse as published in Plant Engineering Magazine dated 10/29/12. Q: How much energy is in a typical arc-flash incident? Q: Do arc flash relays lower the required level of personal protective equipment (PPE)? Q: When working on an energized transformer, we use instantaneous settings at the feeder breaker relay. Can the arc flash...
by , on December 12, 2012
Steve Coleman, PE, and Aleen Mohammed, PE, of Burns & McDonnell Engineering have written a good article on the pitfalls that can cause erroneous results when conducting an arc flash study using one of the many software packages that can perform the analysis for you. Get the details from EC&M (Electrical Construction & Maintenance) webpage...
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