We now have FCC SAR test procedures for 5-GHz WLAN David A. Case, Cisco Systems, Inc. Richland, OH The engineers involved with certifying 802.11-based products, specifically portable devices, are aware of the headaches that Specific Absorption Rate (SAR) testing can cause. Until recently there was not a clear test procedure for qualifying such devices for Federal … [Read more...]
Standards
Ensuring Electromagnetic Compatibility
The IEC coordinates a worldwide system for testing electrical equipment International Electrotechnical Commission How does a hospital administrator know that using a CAT scan will not affect nearby electromagnetic systems and put patients at risk? In the early 1960s, when electrical apparatus became more widespread, not only in specialist areas, but also in the home and … [Read more...]
Updates on the New Release of IEC 61000-4-3 Edition 3
Continuous efforts are needed to maintain a consistently repeatable test Jason Smith, AR Worldwide Souderton, PA The IEC 61000-4-3 standard on radiated electromagnetic field immunity has long been used in order to satisfy one key criterion of the European Union’s requirements for obtaining the CE mark. It is usually used in conjunction with a specific product test standard … [Read more...]
CISPR EMC Standard on Electrical Lighting and Radio Disturbances Released
CISPR 15, ed. 7.2 (2009-01) is entitled “Limits and methods of measurement of radio disturbance characteristics of lighting and similar equipment.” This standard applies to the emission (radiated and conducted) of radio-frequency disturbances from all lighting equipment with a primary function of generating and/or distributing light intended for illumination purposes, and … [Read more...]
Military Specs and Standards Available Online
The Department of Defense Standardization Program makes various military standards available online. Standards in the public domain (such as military and federal specifications and standards) may be downloaded freely from official government websites. Although occasionally available for free downloading from the developer’s website, proprietary standards developed by … [Read more...]
ETSI Technical Report on EMC, Spectrum Use, and Implanted Medical Devices
The European Telecommunications Institute (ETSI) has issued ETSI TR 102 655 V1.1.1, which deals with electromagnetic compatibility and radio spectrum matters. This document defines new requirements for radio frequency spectrum usage for low-power active medical implants and their peripheral radio control systems. The report also proposes a concept that should permit a … [Read more...]
IEC Issues Standard on Testing & Measurement Techniques of ESD Discharge Immunity
The International Electrotechnical Commission (IEC) has issued IEC 61000-4-2 Ed. 2.0 (2008-12) entitled “Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.” This standard relates to the immunity requirements and test methods for electrical and electronic equipment subjected to static electricity … [Read more...]
European Commission Proposes Revisions to WEEE and RoHS Directives
The Commission of the European Communities has proposed extensive revisions to the WEEE (Waste Electrical and Electronic Equipment) and RoHS (Restriction of Hazardous Substances) Directives, a move that requires the attention of all electronics manufacturers producing products destined for the European market. These two directives have been in effect since 2004 and essentially … [Read more...]
The IEC Advisory Committee on EMC (ACEC): Coordination of International EMC Standards
Since its formation, ACEC has developed a unique structure for EMC publications that is used to this day in the IEC and in other regional standardization organizations. While many EMC engineers are familiar with the electromagnetic compatibility (EMC) standards developed by the International Electrotechnical Commission (IEC), they are probably unaware of how the structure of … [Read more...]
IEC Issues Revision on Functional Safety & Electronic Systems With Regard to EM Phenomena
The International Electrotechnical Commission (IEC) has issued IEC 61000-1-2 Ed. 2.0 entitled Electromagnetic compatibility (EMC) – Part 1-2: General – Methodology for the achievement of functional safety of electrical and electronic systems including equipment with regard to electromagnetic phenomena. This second edition cancels and replaces the first edition published in 2001 … [Read more...]
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