How circuit breaker maintenance impacts arc flash

One thing people take for granted is the incident energy levels posted on the arc flash labels in their facilities. Once the study is complete most people never give it another thought and just assume that the numbers are correct. I'm not saying you need to go around second guessing the engineer who did the calculations, but what I am saying is that over time these numbers are in jeopardy if the equipment is not maintained in a satisfactory manner.

Without the proper maintenance being done on the equipment incident energy levels can go from relatively low to extremely high and there would be no way to tell until it was too late.

Read More