Provides a method to determine the temperature rise inside a low-voltage switchgear and controlgear assembly by extrapolation from data found by tests on other assemblies. This Standard is identical with and has been reproduced from IEC 890:1987, including the Corrigendum:1988 and Amendment 1:1995.
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A method of temperature-rise assessment by extrapolation for partially type-tested assemblies (PTTA) of low-voltage switchgear and controlgear
Standards Australia , 01/01/1996
Pages: 26