NF EN 60909-3

January 2004

Standard Current

Short-circuit currents in three-phase a.c. systems - Part 3 : currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth

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Main informations

Collections

National standards and national normative documents

Publication date

January 2004

Number of pages

34 p.

Reference

NF EN 60909-3

ICS Codes

17.220.01 Electricity. Magnetism. General aspects

29.240.20 Power transmission and distribution lines

Print number

1 - 28/04/2004

International kinship

IEC 60909-3:2003

European kinship

EN 60909-3:2003

Standard replaced by (1)

NF EN 60909-3

June 2010

Standard Current

Short-circuit currents in three phase a.c. systems - Part 3 : currents during two separate simultaneous line-to-earth short circuits and partial short circuit currents flowing through earth

Le présent document spécifie les procédures applicables au calcul des valeurs présumées des courants de court-circuit lors d'un court-circuit déséquilibré dans les réseaux triphasés à haute tension à courant alternatif fonctionnant à une fréquence nominale de 50 Hz ou 60 Hz. L'objet du présent document est d'établir des procédures pratiques et concises pour le calcul des courants de court-circuit à la terre durant deux courts-circuits monophasés simultanés séparés à la terre et des courants de court-circuit partiels s'écoulant par la terre, les câbles de garde de lignes aériennes et les gaines ou écrans de câbles, donnant des résultats prudents (sûrs) et d'une précision suffisante.

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