[ut.general] power problems on campus

geoff@utstat.uucp (Geoff Collyer) (10/13/89)

Here in Sidney Smith, the power from the wall outlets has always
brutalised our sensitive equipment (e.g. terminals, disks, PCs,
computers) with spikes and dips far outside normal tolerances (e.g. we
recently saw voltage drop below 95).  Terminals in this building have an
unusually high mortality rate (there are is a matrix of something
like 30 dead Ampex terminals in the Dean's office).  We are having an
especially bad time this week, with our disks (Fujitsu Eagles) taking a
battering.  On the other hand, Ramsey Wright, next door, has incredibly
clean power (which I lust after).  What are other buildings on campus
like?

We are about to rent a power-line monitor to document the poor power in
this building.  We have previously had little success in getting
Physical Plant to improve their power (e.g. our ``isolated'' circuits
appear not to be isolated), to prevent it damaging our equipment.  Has
anyone else documented power problems?  Did you get anywhere with
Physical Plant?
-- 
Geoff Collyer		utzoo!utstat!geoff, geoff@utstat.toronto.edu

henry@utzoo.uucp (Henry Spencer) (10/13/89)

In article <1989Oct13.065045.1769@utstat.uucp> geoff@utstat.uucp (Geoff Collyer) writes:
>... On the other hand, Ramsey Wright, next door, has incredibly
>clean power (which I lust after)...

I think the biggest variable here is the attitudes of the building planners.
Sid Smith seems to have been designed by humanities types who think an
electric pencil sharpener is heavy electrical equipment. :-)  Ramsay Wright
had considerable design input from our old (now retired) Electronics chief,
and the department chairman of the time had had plenty of experience with
power problems.  So it's not an accident that Sid Smith is wired like an
"Electronics For Children" kit and Ramsay Wright is wired like a Hydro
substation.
-- 
A bit of tolerance is worth a  |     Henry Spencer at U of Toronto Zoology
megabyte of flaming.           | uunet!attcan!utzoo!henry henry@zoo.toronto.edu