neal@mnopltd.UUCP (04/07/90)
Thanks for the mail on UPS systems. The response was whelming, but not
overwhelming. The major points to report are:
1. The only UPS recommended was the BEST Power models, which have an
integral ferro-res transformer. The xformer provides a 2000:1 attenuation
on line disturbances. Most other units put but a few MOV's between your
equipment and disaster.
2. A couple of folks had the opinion (similar to mine) that nothing available
will protect you computer from a nearby strike.
3. I found it is worthwile to MEASURE your actual current requirements and
not believe the UL stickers. For example, the total of all my equipment
was 1800VA. Since the 386 is pretty full (2 big ESDI drives, 4 MB ram, EGA,
computone board, etc..) I thought actual current would be close to the
sticker. But when I wired up a doodad to connect the whole mess to my VOM,
I found that with everything running I was actually drawing only 420VA!
That means a much smaller and less expensive transformer.
SO, I think I am going to be real cautious and buy a BEST ups with enough
battery to give me an honest hour. Then I will continue to work when it
rumbles, but plug the house power connection when it gets really biblical
outside.
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Neal Rhodes MNOP Ltd (404)- 972-5430
President Lilburn (atlanta) GA 30247 Fax: 978-4741
uunet!emory!jdyx!mnopltd!neal Or uunet!gatech!stiatl!mnopltd!neal
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