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IEC
IEC
IEC 60909-3:2003
Anulada
2009-03-09
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
IEC
IEC 60793-2:1992/AMD2:1997
Anulada
1998-12-22
Amendment 2 - Optical fibres - Part 2: Product specifications
IEC
IEC 60169-21:1985
En Vigor
1985-01-01
Radio-frequency connectors. Part 21: Two types of radio-frequency
connectors with inner diameter of outer conductor 9.5 mm (0.374 in) with
different versions of screw coupling - Characteristic impedance 50 ohms
(Types SC-A and SC-B)
