Power outages are frustrating and inconvenient. How many of us unplugged our electronic devices while waiting for the power to be restored during those outages?
Although you may have read or heard advice to this effect during a blackout, the question remains as to whether or not it is actually necessary, and if so, why.
It's actually a smart thing to do because fluctuating voltages and surges can damage electronics and appliances.
During a full power outage, devices lose power abruptly, but no harm occurs. Power restoration can cause a surge and irreparable damage.
While large appliances such as washers, dryers, freezers, and stoves are vulnerable to surge damage, unplugging them may be difficult.
In addition, it is recommended to turn off the furnace and central air conditioning unit because their electrical components can be easily damaged when power is restored.
This activity is suggested after an outage but not during a voltage sag, which occurs when an appliance like a vacuum cleaner is turned on.
Unplug electronics and use surge protectors to prevent damage. For peace of mind, get whole-house surge protection.
Most devices can be plugged into a corded or mountable surge protector. There are remote-controlled, energy-saving surge protectors.