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The Arc Flash Label Can save your life!

Bobby Lindsey

My career began twenty-six years ago performing infrared thermal inspections on electrical systems. The job involved interacting with live electrical equipment all day, every day. During that eleven-year period, I interacted with thousands of pieces of live electrical equipment, and like many electrical workers of that period, I often took risks that I would never take now.  So, what changed? More maturity? Increased Awareness? Less of a feeling of invincibility?

It may be a combination of factors, but for me, it comes down to one main reason: Training & Knowledge. The simple fact is this.  I didn’t know the risks I was taking early in my career. I wasn’t being reckless back then. I just didn’t know the danger of some of the things I was doing.

Fast forward to today. I am much more knowledgeable about the hazards within each piece of electrical equipment. My hope is that you are as well. If you are not, let me explain what is different today than in the 1990s. Today, we have a much more quantifiable way of measuring the hazard level of an arc flash event than we ever did before.  For over a century, we’ve known and been able to quantify the hazard level of being shocked.  Shock hazards are largely based on the voltage of the equipment, and the nameplate on the equipment tells us the voltage. This information has allowed electrical workers to assess the risks of being shocked for a long time. However, it wasn’t until the last decade or so that we’ve been able to quantify the hazard level of an arc flash event. The incident energy (measured in calories/cm2) tells us this.

Engraved Panel Tags & Nameplates
For decades, we've been able to quantify the risk of shock by identifying the voltage of the equipment from the nameplate.

If your facility has had an arc flash risk assessment performed, the incident energy (hazard level) along with the arc flash boundary are presented on the label for the equipment, much like the voltage is on the nameplate. If I would have had this information years ago, I would have been able to recognize the differing levels of risk within each piece of equipment and behave accordingly.

Now we have information that quantifies the hazard and risk of an arc flash event. The incident energy tells us this.

The more you know about this, the safer you will be. Training on how to interpret the information contained on arc flash label is vital to the safety of today’s electrical worker. If you haven’t had an arc flash risk assessment performed, lack arc flash labeling on your equipment, or haven’t been trained to interpret the hazards of arc flash, then you need to have an arc flash risk assessment performed on your electrical system.

Let’s take advantage of the increased knowledge available to us today and protect ourselves. This saves lives and reduces catastrophic injury to countless workers every year. Today, I wouldn’t think of engaging with live electrical equipment without knowing the hazard level and risk of an arc flash event, and neither should you or your workers.

To learn more about the details of all the information on an arc flash label, please see my Arc Flash Labels – What You Need to Know article and video.

Mitchell & Lindsey is a nationwide company who performs arc flash risk assessments, provides training, implements safety programs, inspects and tests electrical equipment and evaluates NFPA 70E compliance. If we can be of service to you in any or all of these areas, please reach out to me via the phone number or email below.

Thank You and Be Safe!

Bobby Lindsey – CESCP
Mitchell & Lindsey – President
M: (502) 836-4217