Standard IEC standard · IEC 60949:1988

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

Status: Valid

· Amended by: IEC 60949:1988/AMD1:2008

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Standard IEC standard · IEC 60949:1988

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Scope

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.

Subjects

Electrical engineering in general (29.020)

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

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