The IEC has made available “Interpretation sheet 1 - Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement” as prepared by CISPR Subcommittee I. The subcommittee says that at its October 2007 meeting, the maintenance date for the next edition of CISPR 22 was set for 2012. As a result, the work identified within CISPR/I/279/MCR … [Read more...]
Standards
IEC Releases Correction to Voltage Fluctuations
The IEC has released the first corrigendum to IEC 61000-3-5. Part 3-5 deals with voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated current greater than 75 A.See the corrigendum at the IEC website. … [Read more...]
IEC Standard Covers High Altitude EMP Protection Methods
The International Electrotechnical Commission (IEC) recently released IEC/TS 61000-5-8:2009 which provides guidance on how to protect the distributed infrastructure (power, telecommunications, transportation and pipeline networks, etc.) from the threat of a high altitude electromagnetic pulse (HEMP).Preview this standard at the IEC Web site. … [Read more...]
NIST Holds Standards in Trade Workshop in Hanoi
Regular contributor to Interference Technology, Mike Violette of Washington Labs, recently joined a NIST-hosted US delegation on a three–day Standards in Trade workshop to Vietnam. Although this particular trip was aimed more at fire safety, it is part of a larger effort by U.S. standards organizations like NIST to reach out to developing markets, like Vietnam, helping them to … [Read more...]
New ANSI Standard on EMC for Lifts, Escalators and Moving Walks
The document, DIN EN 12016:2009, specifies the immunity levels and test conditions for lifts, escalators and passenger conveyors in relation to continuous and transient, conducted and radiated disturbances including electrostatic discharges. The document applies to the sub-systems and/or apparatus of lifts, escalators and passenger conveyors, an assembly of which will comprise … [Read more...]
IEC Revises EMC Power Frequency Magnetic Field Immunity Test Standard
Replacing the first edition published in 1993 and its Amendment 1 published in 2000, the IEC recently released a revised version standard, IEC 61000-4-8:2009. This Electromagnetic Compatibility standard relates to the immunity requirements of equipment, only under operational conditions, to magnetic disturbances at power frequencies 50 Hz and 60 Hz related to residential and … [Read more...]
New IEC Standard Covers Human Exposure to Electromagnetic Fields
The new IEC 62577:2009 applies to a single stand-alone broadcast transmitter operating in the frequency range 30 MHz to 40 GHz when put on the market. The objective of the standard is to specify, for such equipment operating in typical conditions, the method for assessment of compliance distances according to the basic restrictions (directly or indirectly via compliance with … [Read more...]
Updated EMC Immunity Test Specification
The IEC has released an updated version of IEC 61000-4-14. This new edition 1.2 applies to electrical and/or electronic equipment that have a rated input current up to 16 A per phase and aims to establish a reference for evaluating the immunity of electric and/or electronic equipment when subjected to positive and negative low amplitude voltage fluctuations. Only conducted … [Read more...]
Implications of CISPR 16-1-1 Update to Include EMI
Thanks to the release by the International Electrotechnical Commission of Edition 3 of the CISPR 16-1-1 standard, otherwise known as CISPR 16-1-1:2010, the world of electromagnetic interference measurement is undergoing a review. CISPR 16-1-1 specifies the characteristics and performance of equipment for measuring radio disturbance in the 9kHz to 18GHz frequency range, as well … [Read more...]
IEC Releases EMC Test Methods for Communications Cable
The International Electrotechnical Commission (IEC) has released IEC 62154-4-11 and IEC 62153-4-12 which detail test methods for metallic communication cables.Part 4-11 deals with coupling attenuation or screening attenuation of patch cords, coaxial cable assemblies and cables manufactured with connectors. Part 4-12 deals with coupling attenuation or screening attenuation of … [Read more...]
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