Timeline for Are 6 volt fluctuations in a 120 volt home outlet harmful to equipment?
Current License: CC BY-SA 4.0
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| Jun 17, 2020 at 5:54 | comment | added | Bob | @Khrrck The more up-to-date ATX spec is at intel.com/content/dam/www/public/us/en/documents/guides/…, though it says much the same thing for input voltage ranges. | |
| Jun 17, 2020 at 0:24 | comment | added | manassehkatz-Moving 2 Codidact | I'm well aware of that. It is on the "Surge Protection Only" part of the UPS. Same effect though if I were to put it not on the UPS but anywhere on the same circuit. Unfortunately, house too old/underpowered/panel full to be able to run a second separate circuit to this part of the house. | |
| Jun 17, 2020 at 0:20 | comment | added | Criggie | Are you running the laser printer through your UPS ? That's generally considered a bad idea and often recommended against. If you must, then the UPS needs to be ~4x the size you might expect. I had one laser that would idle at 0.1A but periodically kick up to a full 9 A load at 240V | |
| Jun 16, 2020 at 17:29 | history | edited | manassehkatz-Moving 2 Codidact | CC BY-SA 4.0 |
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| Jun 16, 2020 at 17:16 | comment | added | Khrrck | Indeed. Perhaps a better citation is ANSI C84.1 which is the source for that range. | |
| Jun 16, 2020 at 16:52 | comment | added | manassehkatz-Moving 2 Codidact | @Khrrck Agreed. I thought about including something like that. But there is plenty of other equipment that isn't quite as flexible (and some that is even more - 90 - 240 for a lot of stuff) but also plenty of non-computer stuff that is really expecting 110 - 125. | |
| Jun 16, 2020 at 16:41 | comment | added | Khrrck | For additional information, the ATX specification for computer power supplies requires them to function normally at voltages as low as 90 and as high as 135. | |
| Jun 16, 2020 at 16:39 | comment | added | Ecnerwal | I would say "normal, utterly" - you have a long complex system where various people (anywhere on your line, or even other lines from the same sub-station) turn loads on and off more-or less at random and the power grid has to attempt to maintain a constant voltage despite that, with very little in the way of "buffers." I happen to have a device which shows voltage (among other things) on my well pump circuit as I'm a curious sort that wants to know that, and the nominal 240V is almost never exactly 240V (whether or not it's running.) | |
| Jun 16, 2020 at 15:53 | history | answered | manassehkatz-Moving 2 Codidact | CC BY-SA 4.0 |