Fecha de publicación: 09/03/2009 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 IEC 60909-3:2009
Fecha de publicación: 09/03/2009 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 IEC 60909-3:2009 RLV
Fecha de publicación: 10/03/2009 Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-3: Examinations and measurements – Active monitoring of changes in attenuation and return loss IEC 61300-3-3:2009
Fecha de publicación: 10/03/2009 Optical amplifiers – Test methods – Part 10-1: Multichannel parameters – Pulse method using an optical switch and optical spectrum analyzer IEC 61290-10-1:2009
Fecha de publicación: 17/03/2009 Rotating electrical machines – Part 15: Impulse voltage withstand levels of form-wound stator coils for rotating a.c. machines IEC 60034-15:2009
Fecha de publicación: 17/03/2009 Rare earth sintered magnets – Stability of the magnetic properties at elevated temperatures IEC TR 62518:2009
Fecha de publicación: 24/03/2009 Nuclear power plants – Instrumentation and control important to safety – Guidance for the decision on modernization IEC TR 62096:2009
Fecha de publicación: 07/04/2009 Magnetizing behaviour of permanent magnets IEC TR 62517:2009
Fecha de publicación: 20/04/2009 Low-voltage switchgear and controlgear – Part 7-2: Ancillary equipment – Protective conductor terminal blocks for copper conductors IEC 60947-7-2:2009
Fecha de publicación: 20/04/2009 Liquid crystal display devices – Part 5-3: Environmental, endurance and mechanical test methods – Glass strength and reliability IEC 61747-5-3:2009