From the International Electrotechnical Commission webstore, "IEC 61587-3:2013 specifies the tests for empty cabinets and subracks concerning electromagnetic shielding performance in the frequency range of 30 MHz to 3,000 MHz. Stipulated attenuation values are chosen for the definition of the shielding performance level of cabinets and subracks for the IEC 60297 and IEC 60917 … [Read more...]
Standards
Analog and Digital Power Line Carrier Systems Operating over EHV/HV/MV Electricity Grids
IEC 62488-1:2012 applies to the planning of analogue and digital power line carrier systems operating over EHV/HV/MV electricity grids. The object of this standard is to establish the planning of the services and performance parameters for the operational requirements to transmit and receive data efficiently over power networks. The transmission media used by the different … [Read more...]
Equipment for Testing, Measuring and Monitoring of Protective Measures in Low Voltage Distribution Systems
From the International Electrotechnical Commission webstore: "This part of IEC 61557 specifies the general requirements for measuring and monitoring equipment for testing the electrical safety in low voltage distribution systems with nominal voltages up to 1 000 V a.c. and 1 500 V d.c. When the measuring of equipment or the measuring of installations involves measurement tasks … [Read more...]
Methods of Measurement for Digital Multimedia Transmission Network
IEC 62553:2012(E) is intended to establish measuring methods that enable the objective evaluation of the performance of transmission networks in order to make stable DTTB services a reality and establish a technical baseline. The measurement methods described are intended for digital terrestrial television transmission network test and validation. Learn more. … [Read more...]
Safety Requirements and Tests for Variable Transformers and Power Supply Units Incorporating Variable Transformers
IEC 61558-2-14:2013 deals with the safety of variable transformers for general applications and power supply units that incorporate variable transformers for general applications. Transformers incorporating electronic circuits are also covered by this standard. This first edition cancels and replaces the chapter IV of the IEC 60989 published in 1991 and includes an update of … [Read more...]
Signal Integrity Tests Up to 1,000 MHz on IEC 60603-7 and IEC 61076-3 Series Connectors
From the International Electrotechnical Commission webstore: "IEC 60512-28-100:2013 specifies the test methods for transmission performance for IEC 60603-7 and IEC 61076-3 series connectors up to 1 000 MHz. It is also suitable for testing lower frequency connectors; however the test methodology specified in the detailed specification for any given connector remains the … [Read more...]
Measurement of Passive Intermodulation in Coaxial Cable Assemblies
IEC 62037-2:2012(E) defines a procedure to measure levels of passive intermodulation generated by a coaxial cable assembly. This test method is applicable to jumper cables, such as cable assemblies intended to provide interface flexibility between rigid devices. Learn more. … [Read more...]
Ferrite Cores – Standard Inductance Factor for Gapped Cores and its Tolerance
IEC 62358:2012 provides AL values (inductance factors) and their tolerances of Pot, RM, ETD, E, EER, EP, PQ and low-profile gapped ferrite cores. This edition includes a number of significant technical changes with respect to previous editions. Learn more. … [Read more...]
Testing Requirements for EMC-Unprotected Test and Measurement Circuits
IEC 61326-2-1:2012 specifies detailed test configurations, operational conditions and performance criteria for equipment with test and measurement circuits that are not EMC-protected for operational and/or functional reasons as specified by the manufacturer. This second edition constitutes a technical revision and cancels and replaces the first edition published in 2005. Learn … [Read more...]
Fixed Surface Mount Inductors for Use in Electronic and Telecommunication Equipment
IEC 62674-1:2012 aims to define the terms needed to describe the inductors covered by this standard and provide recommendations for preferred characteristics, recommended performance, test methods and general guidance. This standard is intended for application to fixed surface mount inductors and ferrite beads. Learn more. … [Read more...]
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