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IEC 60949:1988

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

General information

Valid from 25.11.1988
Directives or regulations
None

Standard history

Status
Date
Type
Name
24.09.2008
Amendment
25.11.1988
Main
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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