What is the difference between “Blackout” and “Brownout”?
These terms refer to complete loss of power i.e. blackout and a partial loss of full voltage from the supply source i.e. brownout. The brownout can result in damage to motors trying to run from a reduced voltage source, they heat over safe limits and suffer catastrophic failure. Incandescent lights will just run in a dim condition, fluorescent lights will falter.