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IEVref:212-12-31ID:
Language:enStatus: Standard
Term: thermal class
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Definition: designation of an insulating material or system by a number that is equal to the numerical value of the Celsius maximum temperature expressed in degrees Celsius for which the material or system is appropriate in normal use

NOTE 1 – It may be necessary to assign different thermal classes to the same material or system for different service conditions.

NOTE 2 – The description of an electrotechnical product as being of a particular thermal class does not mean, and must not be taken to imply that each insulating material used in its construction is of the same thermal capability.


Publication date:2010-06
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Internal notes:2015-08-10: Typo "temperatureexpressed" corrected. JGO
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