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IEC 60949-ed.1.0

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

NORMA vydaná dňa 25.11.1988

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The information about the standard:

Designation standards: IEC 60949-ed.1.0
Publication date standards: 25.11.1988
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: International technical standard
Kategória: Technické normy IEC

Annotation of standard text IEC 60949-ed.1.0 :

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. Lapproche presentee dans la presente norme consiste a: a) calculer le courant de court-circuit adiabatique, b) calculer un facteur de correction qui tient compte de lechauffement non adiabatique, c) multiplier a) par b) pour obtenir le courant de court-circuit admissible.