Voltage drop

Also known as a brownout, dip, sag, voltage reduction, and voltage sag, a voltage drop is any type of decrease in voltage, typically under one second. Longer reduction in voltage is called undervoltage.

Power line sags often occur during the summer and when too much equipment is plugged into the same circuit. When this occurs your computer could experience such symptoms as the computer locking up, lost data, system crashes, and can also cause hardware in your computer such as the hard drive to fail.

If you're experiencing brownouts in your area or are in an area where the power company does rolling brownouts we suggest purchasing a SPS or UPS for your computer and other important equipment to help prevent any damage.

Also see: Power definitions, Voltage