mico@TRZDOR1.ICO.OLIVETTI.COM (Michele Costabile) (01/04/91)
I have some concern about leaving things on because in case of a blackout
the power supply might be really stressed when power returns with a
potentially troubled waveform.
I have experienced multiple failures in a computer network in such a case,
all of them concerned the power supply.
Use of a variac might be a sensible solution.
It should at least cut spikes and extra voltage by the same factor
it reduces voltage.
A variac is also a good thing to have when you are testing equipment:
before pushing B+ to the design value see if things are ok at a lower voltage.
A line conditioner seems however a must since leaving components on all
the time multiplies by a factor of 8 to 10 (i.e. whole day / evening hours)
the chance of seeing something bad coming off the mains.
Michele Costabile
Olivetti Systems & Networks R&D USA: mico@olivetti.com mico@oliveb.UUCP
Via C. Colombo, 49 Europe: mico@olivetti.it
20090 Trezzano s/n MILANO (Italy) work: +39 2 445701
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