[time-nuts] line frequency website

David VanHorn D.VanHorn at elec-solutions.com
Fri Dec 30 18:07:33 EST 2011


________________________________________
From: time-nuts-bounces at febo.com [time-nuts-bounces at febo.com] On Behalf Of shalimr9 at gmail.com [shalimr9 at gmail.com]
Sent: Friday, December 30, 2011 3:47 PM
To: Time-Nuts
Subject: Re: [time-nuts] line frequency website

The problem is that while the frequency is going to be pretty much the same anywhere on the same grid, the voltage is not. Knowing the voltage at some point in your state (or another) is not all that useful. They may record it, but I am not even sure it would be worth saving in a database.


Well, I design systems that we send out all over the world.
I have various spec numbers that indicate some rather optimistic tolerance.
For example, I have measured actual outlets in the US at 70VAC and 142VAC, which is well outside the published tolerances.
I get a lot of flack from management when I try to use those numbers as operational limits instead of the utility published ones.
Some empirical evidence from a third party would help a lot.

We want to design systems that "Just work".





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