Tyndale presents Arc Week: a unique, week-long educational look at the world of arc flash hazards through the lens of Shark Week. Join Scott Margolin – our dedicated technical expert by day and passionate shark enthusiast in his free time – for engaging, memorable parallels that bring important lessons about risk protection and PPE to life.
Catch it all: Season 1, Season 2, Season 3.
In today’s episode, we’re diving right in to the three remaining variables that determine arc incident energy level. Watch the video above, featuring your Arc Week host, Scott Margolin as he explains what fighter jets, shark teeth, and shark feeding zones have in common with cycle time, arc gap, and distance.
In Episode 1, we learned about the first two variables that determine arc incident energy level, voltage and amperage. Like amperage, cycle time is directly related to the arc incident energy level. Arc gap and distance of the worker from the arc gap are also key factors that determine the potential power of an arc flash.
In addition to the five variables that determine arc incident energy, explained in episodes 1 and 2, there are a few other factors specific to industrial electrical arcs or “arc in a box” that workers should be conscious of while on the job. That is, the size, shape, and depth of the “box.” Arc incident energy levels increase as the enclosure size of the source of the potential arc gets smaller or shallower. Finally, the orientation of the electrodes within the industrial equipment affects the hazard, and vertical electrodes tend to be more hazardous.
Please join us tomorrow to catch Episode 3: Great Balls of Fire – Live at the Arc Ratings Lab. In this episode, we travel to North America's only arc rating lab to take you on a behind-the-scenes look at arc flash testing from the bottom up. Scott Margolin, Chair of ASTM F1959 the Standard Test Method for Determining Arc Thermal Performance Value of Textile Materials for Clothing by Electric Arc and Related Thermal Hazards is joined by industry expert Brian Shiels, Service Line Manager at Arcwear and Director of the ASTM Board of Directors, to conduct testing and determine an arc rating from beginning to end. Swim along as we explore the science behind the safety.
Do you have a flash fire – rather than an arc flash – hazard? The hazards may differ, but the valuable lessons in this series are relevant to workers in oil and gas and other industries that use PPE to protect workers from thermal hazards. Tune in!