Recommended
Electrical Arc Flash Demonstration
Why people recommend it
Footage of an arc flash in an industrial panel, linked to show why high-energy mains equipment is best left to qualified people.
In their words
Culturally, it is treated with fear and respect - here's a 277/480V arc flash...
Harper - Reinstate Monica on electronics.stackexchange.com, Feb 2022. CC BY-SA.
If enough power is available, the spark (known as an arc flash) can be big enough to cause serious injuries.
Stack Exchange Broke The Law on electronics.stackexchange.com, Dec 2019. CC BY-SA.
Here's a short video showing why you let the provider deal with these things: Electrical Arc Flash Demonstration.
Andrew Morton on electronics.stackexchange.com, Aug 2023. CC BY-SA.
