Discussion on:

10 ways to protect systems from electrical catastrophes

Are you confident that your systems are adequately protected from the types of calamities described in this article? Have you ever found out the hard way that they weren't?

Besure that all wall outlets are properly grounded, and that any power strips and extention cords are three pronged type and that the two prong plugs are polarized. A full 120 volt potential could be present between two pieces of equipment if polarities are swapped on extention cords. This can be lethal to some people and at the least a rude awakening for others. This needs to be checked out by a certified electrician and verified to be sure no one is at risk.

When it states:
"Most computer equipment is designed to use 120 volts of AC power supplied at 60 Hertz"

I would counter that MOST computer equipment is designed to use much smaller DC voltages. Try running a CDROM off 110V, you get one very "fried" bit of equipment... lol.

That's why we have a PSU in a PC to supply those needs.
Even many peripherals have their own power requirements, eg printers, scanners, and use a transformer to supply this.

Wireless and remote devices often use batteries even.

Even if you are talking only about the mains supply, this is still not correct, for example many PSUs are switchable between 120V 60Hz used in North America, for example, and 240V 50Hz used elswhere in the world.

I just want to say that when you put language such as UPS/Surge Protector into your writing people might think one is as good as the other. One time I know of very clearly was in a new server install, where (even though a new UPS was shipped with it) the tech during the RacknStack plugged the new server into the existing surge protector instead of the UPS and it shut off the breaker for the telephone system, and by the time the tech figured out where the switch was to turn it back on (30min to an hr) the memory of all of the phone numbers in the phone system were completely wiped out and needed reprogramming, which is a long painstaking process. The next work day needed a Telecom person to come in and do this, the tech was not paid for the day, and the data migration that he was assigned to was cancelled and given to another tech.