03/17/2024
Tis the season...for surge suppressors! ..as a minimum. A surge can take out the majority of your high-end electronics: TVs, stereos, computers, and the like. Anything with electronic controls. A good surge suppressor can save major bucks...and in some cases...can pay if damages make it through them. But you have to READ THE DISCLAIMER! Many have in big, bold letters, the amount covered, but that's the maximum, and excludes depreciation, and only for a year...if you register the product.
And it will not protect you from brownouts. Those happen when the generation capacity can't meet the load, and when the voltage is cut back, rather than off. It can damage electronics, but generally that damage is cumulative, rather than immediate. Oh, it might strike during a brown out, but the ones leading up to it played as much a part as the last.
A combination surge suppressor/uninterruptable power supply can save you from that. Most have a connection that can shutdown a computer should the brownout/blackout continue past a preset time. A sonic alarm goes off and that's when the battery has kicked in. That's when your computer needs to be shutting down--by the app, or by you. And remember that any Windows computer, Windows 8 or greater, turns off the screen but it is still writing to the hard disk. If it is cut off from power during that write, it can physically damage the hard disk, or corrupt it. "Attempting to repair" loops are a good indication of that.
So if you know that thunderstorms and lighting are predicted, and you have a desktop computer (or laptop with a bad battery), shutdown your computer, wait until it is totally powered off (no lights of any kind), and unplug it from power. Unplug TVs and any electronics that you care about, and get out your batteries...or just take your chances.