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2
votes
Is this UPS Socket Defective?
However, I would be extremely careful plugging any US type B plugs into this UPS. As far as I can tell, this is a 230V UPS. The US type B (aka NEMA 5-15) is normally used for 120V devices. … However, if you have a device that requires 120V (or 100V - 125V) power, using it with this UPS is a very bad idea. …
18
votes
Are 6 volt fluctuations in a 120 volt home outlet harmful to equipment?
In my case, I installed a UPS due to real power outages (used to be common, now very infrequent thanks to Pepco rewiring the neighborhood a few years ago), and it kicks in due to voltage drop every time …
2
votes
Is there any way to use an Uninterruptible Power Supply properly when there's no ground wire...
While a UPS, and many surge protectors as well, will show wiring faults equivalent to a magic 8-ball, a UPS should never actually use ground, except if there is a true fault. … UPS for other reasons. …
17
votes
UPS / Battery Question
I'm not quite sure what would happen, but I have a feeling you will end up with one or more of:
One UPS zaps the other.
Both UPSes charge at the same time and charge the batteries too much. … Alternatively, get a new UPS that is designed to handle external batteries. …
4
votes
NEMA 5-20 to 5-15 adapter - is it safe?
A load with a 5-20 plug can draw up to 16 Amps continuously, and a UPS with a 5-20 plug can be expected to use more than 12 Amps, at least when charging after power is restored, because if it didn't need …
7
votes
Replicate "Behind Wall TV Power" - Idea or Explosion?
No issue of overload - this would all normally be on one circuit anyway, and the UPS certainly wouldn't handle drawing 20+ amps for long. … You don't want somebody plugging in a vacuum cleaner or other large appliance, even for a few minutes at a time, into a UPS. …