2015 NFPA 70E – 10 Item Check Up

With the 2015 Edition of NFPA 70E being published and all of the changes that it brings, it is time to review your arc flash study, labels and overall practices.  There are many key areas that should be evaluated.  Here ten of the more important areas to look at to give your site a check up. Continue reading

Specifying Arc Flash Studies and IEEE 1584.1

An arc flash study can be a bit complicated if you are new to this field.  Knowing where to begin, what to include, how far to go, how to use the software etc. can seem like an insurmountable undertaking.  WORSE – you are going to contract the study and don’t know what to ask for.  The good news, there are many well qualified consultants that can help guide you through the process.  The bad news – there are plenty of people ready to take advantage of the situation once they realize this might be your first study. Continue reading

NFPA 70E – Qualified Workers

“Raise your right hand”  Pretty intimidating words – especially if they are said in a court room and the trial is about an injury or death.  –  and you are on the wrong side of what happened.  Let’s face it in the litigious society that we have in the United States, it seems anytime there is an accident where there is a significant economic loss, personal injury or worse – someone died, there will almost certainly be legal actions. Continue reading

NFPA 70E – 2015 Edition – Update of Changes

NFPA 70E – Standard for Electrical Safety in the Workplace, was first published in 1979 and consisted of only one part, The 2015 Edition marks the tenth edition to NFPA 70E and with it, many sweeping changes. This article provides a review of the major changes to the latest edition of this important electrical safety standard. Continue reading

Global Use of IEEE 1584

The surface area of the earth is approximately 197 million square miles, and IEEE 1584—IEEE Guide for Performing Arc-Flash Hazard Calculations has been covering more of it every day since it was first published almost 11 years ago. Although the IEEE 1584 standard has its roots in the United States, it has gained widespread international use as the most common method for performing arc flash calculation studies. Continue reading

IEEE 1584 Revision Update – 201X Edition

IEEE 1584 – Where It All Began – 2002
A lot has happened since 2002 when IEEE 1584 – IEEE Guide for Arc-Flash Hazard Calculations was first published. The development of this land mark document included conducting over 300 arc flash tests which were used to create the empirically derived equations. Applicable for three phase calculations and voltages ranging from 208 volts to 15,000 volts, four main calculation Continue reading

Happy August 11! (and call before you dig)

Today is a special day.  August 11 – Also known as 8 11 (unless you use the format day/month) What is so special about 811?  8-1-1 is the telephone number that you use to find underground utilities before you dig.  Known as “Call Before You Dig” it is a nationwide network (in the U.S.) that is designed to assists in locating underground utilities. Continue reading

Arc Flash Labels – Simplified!

“What do you mean we need to relabel the electrical equipment? Didn’t we just do this a few years ago?”

This is a pretty common response when addressing the requirements of NFPA 70E 130.5(2), which necessitate that the arc-flash risk assessment shall, “be updated when a major modification or renovation takes place. It shall be reviewed periodically, at intervals not to exceed 5 years, to account for changes in the electrical distribution system that could affect the results of the arc-flash risk assessment.” Continue reading

Electric Shock – It CAN Happen to Anyone – Like Me!

Electric shock happens to more people than they care to admit. In almost every NFPA 70E / electrical safety training class that I conduct, I ask the group “how many of you have NEVER experienced an electric shock.” I have yet to see a hand go up. In today’s “Modern World” electricity is part of daily life and as a consequence, an electric shock can happen to anyone – Including Me! Continue reading