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IEC 60939-1:1988 ed1.0

Заменен
Complete filter units for radio interference suppression. Part 1: Generic specification — 85 стр.
Applicable to complete filter units for radio interference suppression intended for apparatus and machines to be connected to a supply with a nominal voltage not exceeding 500 V between conductors, or 250 V between any one conductor and earth, and a frequency not exceeding 100 Hz. The combination of two or more filters within one enclosure is also included in the scope of this standard.
ICS
31.160 Electric filters / Электрические фильтры