Electrical
Water in a panel is a 911-and-stay-back event.
A ceiling leak that finds a panel is no longer only a plumbing file. Occupants should not open the door, throw the main, or wipe the interior.
By ProShield Leak Detection Inc. · Updated

Get people away from the panel.
Call 911 if anyone is at risk. Then the building contact and ProShield for the water side.
Do not open the dead-front.
Looking inside a wet panel is how people get hurt.
Once power is made safe by a qualified person, the water still needs a source.
An electrician making the panel safe does not name the pipe.
Questions people ask
Can I flip the main breaker if the handle is dry?
If you are unsure, do not. A wet panel is not a DIY moment.
Will the power company handle the leak?
They handle service safety. The building still needs a water finding.