Temp at Level 3 data centers

Ken Chase math at sizone.org
Wed Oct 11 19:13:11 CST 2017


As temp goes up wire resistance increases too, increasing heat, increasing
resistance, etc - and I find breakers trip more easily at hotter temps too.

/kc


On Wed, Oct 11, 2017 at 01:08:33PM -0400, Zachary Winnerman said:
  >That's a good point, though if you are running your breakers that close
  >I think you have bigger problems, as a power outage, however unlikely,
  >could cause your equipment to not come back up at all. Software updates
  >that reboot several servers in quick succession could also cause a
  >breaker to trip under those circumstances. Unfortunately, there's no way
  >to tell how close a breaker is to tripping without tripping it. Breakers
  >may have amp meteres and a rated size, but the actual load before
  >tripping is +-20% for common models, meaning a 20A breaker may trip as
  >low as 16A.

-- 
Ken Chase - math at sizone.org Guelph Canada


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