I am no expert at all, but it is like the opposite of power-surge. So the electrical power is reduced which may mean that your electrical devices and appliances may be damaged if a brown-out occurs. It is also related to a 'black-out' when all power is lost (black-outs are safer for your electronics and appliances because mostly it is just like turning them off at the wall socket).
You should have a power protection board that protects you from brown-outs (low voltage) and power-surge (high voltage).
A surge is an over voltage and over current situation and a brownout is an under voltage situation.
Environmental Protection Agency
My Understanding for stalling protection When the motor is overloaded or the Stalling or locking the rotor overheat generated , due the presence the stalling protection operates.
Personal Protective Equipment Typical includes hard hat, safety glasses and hearing protection, but may also include other equipment such as fall protection harness, respirators ... depending on work being performed.
Ingress Protection IP 44 First Index Number - Foreign Bodies Protection, Solids Tools and wires etc with a thickness >1mm, Granular foreign bodies, diam. >1mm Second Index Number - Water Protection, Liquids Spray water from all directions, (limited ingress permitted), Splashing
The plural form for the noun brownout is brownouts.
brownout
A surge is an over voltage and over current situation and a brownout is an under voltage situation.
A brownout when referring to power is a temporary reduction of power to an area of a city. This is in contrast to a blackout where complete power loss occurs.
Brownout
A brownout refers to the drop in voltage in an electrical power supply system. A blackout, on the other hand, is the complete loss of electric power in an area.
A temporary drop in AC power
Typically if a power company has caused a brownout it is because they have reduced the voltage in the electrical grid to prevent a blackout. However not all brownouts are efforts by the power company.
brownout
The cast of Brownout sa Neighborhood namin That Day - 2011 includes: Archie Adamos Krish Evita Juan Miguel Severo Geraldine Tan
Blackout, Brownout, Spike, Surge and Noise.
Power-saving