Directly opposite here. Most will have plenty of space on 1 hand to count the powerlosses in their entire life
This +1. I don't get the users who claim that all a UPS does is keep the PC up over a short brownout. Its most important function is line conditioning so that those power ripples do not hit your power supply on a continual basis.
Pure sine wave is also necessary on your UPS with the newer PSUs offering PFC.
I have 4 or 5 around the house. Behind the TV keeping a switch, HTPC, Verizon extender all up and running. Basement keeping a couple desktops going. Plus keeping switch, server, router, tuner, modem going. Upstairs keeping Media center extender and TV going.
Couple more I need to replace the batteries in.
How often do you replace batteries?
How do you test to see if you need to replace them?
10 years with no power blackouts, brownouts or surges?not at home, I haven't experienced a power outtage or anything in the last decade so I don't really see the need for one.
10 years with no power blackouts, brownouts or surges?
What device are you using to monitor your incoming power in order to make such a statement?
I can't say with 100% certainty that brownouts and surges haven't occured, but I can say that it has never affected me in any way and I have never seen any evidence of said things occuring.
I do remember the last black out, which must have been back in either '02 or '03, I was working on a school project at the time it occured (I was plugging in my laptop the second it happened, we joked that my laptop was so powerful that it sucked up all the juice eventhough it was obviously a coincidence).
I live in a small wealthy country with a highly developed infrastructure, so it's really not that surprising.
A typical UPS does not do and does not claim to do that. Some of the 'dirtiest' power a computer will see comes from a UPS in battery backup mode. Power is 'cleanest' when the UPS connects the computer directly to AC mains.They act as second barriers for surges, line conditioners, and of course battery backups.
I don't expect the UPS to provide uber clean power while in battery backup mode. However, the UPS units I got for my more important equipment advertise automatic voltage regulation. I don't know how well it works, but that's the advertising for them anyway:A typical UPS does not do and does not claim to do that. Some of the 'dirtiest' power a computer will see comes from a UPS in battery backup mode. Power is 'cleanest' when the UPS connects the computer directly to AC mains.
A UPS is temporary and 'dirtiest' power during a blackout. It even says its surge protection is near zero. Read its specification numbers. Just enough above zero so that advertising can claim 100% protection.
A UPS does not do hardware protection. Temporary and 'dirty' power means data can be saved. Or a firmware upgrade is not corrupted. Due to superior protection already inside electronics, then 'dirtiest' UPS power is ideal power for electronics. That same UPS can be harmful to small electric motors or power strip protectors.
The claim is subjective. Suspect the worst. Subjective claims can even prove that Obama is a Martian."Automatic Voltage Regulation - AVR technology stabilizes the AC voltage and maintains a safe voltage level without switching to battery-mode. This conserves battery life, and delivers cleaner AC power to connected equipment."
I did not write the screenplay that said, "Show me the numbers." Somebody beat me to it.Heh. I swear westom you're everywhere.