Okay kiddo, so you know how electricity can be really powerful and dangerous if not handled properly, right? Well, sometimes when electricity is flowing through a wire, something called an "arc flash" can happen.
An arc flash is basically a really big spark, kind of like when you rub your feet on carpet and then touch something metal and you get a small shock. But these arc flashes can be much bigger, and they can create intense heat and light that can be really dangerous.
If someone is nearby when an arc flash happens, they could get burned or even blinded by the light. And if they're wearing clothes that can catch on fire easily, they could even get seriously hurt.
That's why it's really important for people who work around electricity, like electricians or engineers, to wear special protective clothing and follow safety rules to make sure they don't get hurt by arc flashes. They also need to make sure that the equipment they're working on is properly maintained and installed so that arc flashes are less likely to happen. Does that make sense, kiddo?