![]() That is to say, we all pick up something powered – a vacuum, touching the power button on a computer monitor – typically powered by the standard 120 volts in North America or the 240 volts in Europe. We need to assume that there is an exposed conductor. On Or Near Electrically-Powered Equipment Let’s look at the answers to these questions briefly. What is the meaning of on or near electrically-powered equipment?.Looking at the above, we now have some definitions we need to address. The defining factor is an electrically-powered circuit. That is to say that I hope you don’t go near a live circuit. Works on or near electrically-powered equipment where that power is above 50 volts, and there is a risk of exposure to live components.īut wait, doesn’t that mean anyone near a regular 120-volt circuit needs arc flash training? No, your normal 120-volt circuit at home or office isn’t something you work on live.Who Needs Arc Flash Training?Īll electricians should require arc flash training as a component of their license certification.įurthermore, arc flash training is appropriate for anyone who: The training typically lasts around a day at the end, the professional should be competent in determining arc flash risk potential and complete an arc flash risk assessment. Accidental touches and brushes against energized componentsĪrc flash training is specialized training to help professionals understand the dangers and precautions regarding the arc flash event.Dropping materials (like metal shavings when drilling into a panel).This aspect of the resultant arc flash typically causes the most damage due to the expelling of heat and shrapnel when a component explodes due to an electrical arc.Īrc flash can cause building fires, electrical fires, extreme burns, and even death if a person is too close when an arc flash occurs. The problem with lightning is that many objects don’t respond well to it and tend to explode. You can think of arc flash as mini lightning. Even dust and condensation can cause an arc flash, so safety is paramount. However, arc flashes might also happen if components in a circuit become loose or faulty. ![]() Typically, an arc flash occurs due to user error, like a tool getting too close to a live circuit.
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