IEC-949 Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects

IEC-949 - 1ST EDITION - CURRENT -- See the following: IEC-60949-1


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 1ST EDITION - Jan. 1, 1988
 FOR 1ST EDITION AMENDMENT 1 - Sept. 1, 2008

The approach set out in this standard is to: a) calculate the adiabatic short-circuit current, b) calculate a modifying factor that takes account of the non-adiabatic heating effect, c) multiply a) and b) to obtain permissible short-circuit current.
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Document Number

IEC 60949 Ed. 1.0 b:1988

Revision Level

1ST EDITION

Status

Current

Publication Date

Jan. 1, 1988

Committee Number

20