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IEC 60909-3:2009 ed3.0

Действует
Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth — 117 стр.
IEC 60909-3:2003 ed2.0
Заменен
IEC 60909-3:1995 ed1.0
Заменен
IEC 60909-3:2009 ed3.0
Действует