实施日期:2000-12-07
Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-3: Measurement, control and protection devices for specific use in a.c. traction systems - Single-phase...
适用范围:IEC 62505-3-3:2009 gives particular requirements for voltage transformers used in a.c. single-phase railway applications, fixed installations. Applies to inductive voltage transformers used at traction...
发布日期:2009-03-10 实施日期:2009-03-10
Safety of transformers,reactors,power supply units and combination thereof. Particular requirements and tests for variable transformers and power supply units incorporating variable transformers
发布日期:2013-03-31 实施日期:2013-03-31
Sicherheit von Transformatoren,Drosseln,Netzger?ten und entsprechende Kombinationen. Besondere Anforderungen und Prüfungen an Transformatoren und Netzger?ten für Klingeln und L?utewerke Safety of trans...
适用范围:This part of IEC 61558 deals with the safety of bell and chime transformers and powersupply units incorporating bell and chime transformers. Transformers incorporatingelectronic circuits are also cover...
实施日期:2010-10-31
实施日期:1998-03-19
Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-1: Measurement, control and protection devices for specific use in a.c. tractions systems - Application...
适用范围:IEC 62505-3-1:2009 provides assistance, guidance and requirements in the design of protection, control and measuring systems in a.c. installations at traction voltages (see IEC 60850) intended to provi...
发布日期:2009-03-10 实施日期:2009-03-10
Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-4: Particular requirements and tests for isolating transformers and power supply uni...
适用范围:IEC 61558-2-4:2009 deals with the safety of isolating transformers for general applications and power supply units incorporating isolating transformers for general applications. Transformers incorporat...
发布日期:2009-02-11 实施日期:2009-02-11
Railway applications. Fixed installations. Particular requirements for alternating current switchgear. Disconnectors,earthing switches and switches with nominal voltage above 1 Kv
发布日期:2012-11-30 实施日期:2012-11-30
Electrical accessories - Portable residual current devices without integral overcurrent protection for household and similar use (PRCDs)
实施日期:2004-06-01
Measurement of Fluid Flow by Means of Thermal Dispersion Mass Flowmeters
适用范围:This Standard establishes common terminology and gives guidelines for the quality, description, principle of operation, selection, installation, and flow calibration of thermal dispersion flowmeters fo...
实施日期:2010-01-01
Instrument transformers. Part 102:Ferroresonance oscillations in substations with inductive voltage transformers
适用范围:IEC/TR 61869-102:2014(E) provides technical information for understanding the undesirable phenomenon of ferroresonance oscillations in medium voltage and high voltage networks in connection with induct...
发布日期:2014-01-21 实施日期:2014-01-21
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