In message <4f0edf9b.8060...@ieee.org>, dated Thu, 12 Jan 2012, Mick
Maytum <m.j.may...@ieee.org> writes:
TC 1 controls the IEC IEV. There you find in the fundamental
definitions
Area Electrical and magnetic devices / Operating conditions and
testing
IEV ref 151-16-33
thermal equilibrium
state reached when the temperature of the parts of a component
or equipment operating in a given environment no longer varies faster
than a specified limit
IEV definitions are not unique, though, which is a fundamental problem.
While some cleaning up has occurred, at one time there were 49 different
definitions of 'level'.
--
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
Some people who are peeling the finch of the financial crisis are thinking of
biting a rook.
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