NODE 55c7eda1Re: UPSs
StanSquncr <StanSquncr@aol.com>Wed, 18 Mar 1998 22:08:50 -0800 (PST)
In a message dated 98-03-18 23:54:33 EST, spectre@anthrax.net writes:
<< ... Any decent ups will put the incoming power
through a "conditioner" that will filter out noise in the incoming power,
and rebuild the wave so that transient sags and spikes don't get through. ...
>>
BUT, even the fastest electronics cannot respond fast enough to the initial
spike, if that spike is too high in the first place (if your incoming power
lines get hit by lightning, for instance), it's already too late. My
suggestion, don't trust a UPS to eliminate spikes, get it if you anticipate a
need for back-up power to shut down your system in case of black-out (and
screw the surge protectors, trust the filtering in your power supply to do
that for you.)
Stan
NODE d38c01dcRe: UPSs
Ken Williams <jkwilli2@unity.ncsu.edu>Thu, 19 Mar 1998 02:36:22 -0800 (PST)
On Thu, 19 Mar 1998, StanSquncr wrote:
>In a message dated 98-03-18 23:54:33 EST, spectre@anthrax.net writes:
>
><< ... Any decent ups will put the incoming power
> through a "conditioner" that will filter out noise in the incoming power,
> and rebuild the wave so that transient sags and spikes don't get through. ...
>>>
>
>BUT, even the fastest electronics cannot respond fast enough to the initial
>spike, if that spike is too high in the first place (if your incoming power
>lines get hit by lightning, for instance), it's already too late. My
>suggestion, don't trust a UPS to eliminate spikes, get it if you anticipate a
>need for back-up power to shut down your system in case of black-out (and
>screw the surge protectors, trust the filtering in your power supply to do
>that for you.)
>
>Stan
How many times have you been struck by lightning, Stan? The effects are
showing...
Ken Williams
ORG: NC State Computer Science Dept VP of The E.H.A.P. Corp.
EML: jkwilli2@adm.csc.ncsu.edu ehap@ehap.org
WWW: http://152.7.11.38/~tattooman/ http://www.ehap.org/
PGP: finger tattooman@152.7.11.38