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Interference Technology

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Standards

IEEE Developing Standard Limiting Insertion of Harmonics into Power Grid

 

The IEEE Standards Association (IEEE-SA) Standards Board approved two new projects to develop standards that will limit the injection of harmonic frequencies into the public electric transmission system. Harmonic pollution is a growing problem caused by the widespread use of power supplies and other non-linear loads. It can result in power loss and equipment damage and it may … [Read more...]

IEC Releases Standard on High-Voltage Switchgear and Controlgear

 

Project IEC 62271-204 ed1.0, High-voltage switchgear and controlgear – Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV, is an up to 3 months pre-release of the official publication. This part of IEC 62271 applies to rigid HV gas-insulated transmission lines (GIL) in which the insulation is obtained, at least partly, by a non-corrosive insulating … [Read more...]

New Standard Released on Electrical Insulating Materials and Systems

 

IEC/TS 61934 ed2.0, Electrical insulating materials and systems - Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses, is applicable to the off-line electrical measurement of partial discharges (PD) that occur in electrical insulation systems (EIS) when stressed by repetitive voltage impulses generated from electronic power … [Read more...]

Updated EMC and Hearing Aids Standard Released

 

IEC 60118-13:2011 in principle covers all relevant EMC phenomena for hearing aids. Hearing aid immunity to high frequency electromagnetic fields originating from digital wireless devices operating in the frequency ranges 0.8 GHz to 0.96 GHz and 1.4 GHz to 2.48 GHz is currently identified as the only relevant EMC phenomenon regarding hearing aids. Future editions of this part of … [Read more...]

New Communication Standards for Smart Grid Metering Devices

 

Among the efficiencies promised by the smart grid is the use of metering devices that not only report usage to utilities but also inform users how to schedule consumption to lower-cost off-peak hours or even control that consumption automatically. Two new IEEE standards provide multisource "plug and play" environments for the millions of metering devices in the field now and in … [Read more...]

New Damped Oscillatory Wave Immunity Test Standard

 

IEC 61000-4-18 ed1.1 Consolidated with am1, Electromagnetic compatibility (EMC) - Part 4-18: Testing and measurement techniques – Damped oscillatory wave immunity test, relates to the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, with regard to: a) repetitive damped oscillatory waves occurring mainly in power, … [Read more...]

Wireless Approvals for Japan: A Hiro's Tale

 

Hiro dug into his soup. “Did your dad fight in the war?” Nodding, slurping up fat udon noodles, “Korea,” pausing and picking up a napkin to dab his chin. “My father was an engineer, highways and bridges, mostly in the North.” Hiro put down his napkin, laid his fast-food chopsticks across his bowl and picked up the chopstick wrapper. He meticulously folded the long paper in … [Read more...]

New EMC Requirements for Commercial Avionics: RTCA/DO-160G

 

Erik J. Borgstrom, Environ Laboratories LLC, Bloomington, Minnesota, US OVERVIEW RTCA/DO-160G, Environmental Conditions and Test Procedures for Airborne Equipment, prepared by RTCA Special Committee 135, was issued on December 8, 2010, superseding the previous version, DO-160F [1]. DO-160G covers standard procedures and environmental test criteria for testing airborne … [Read more...]

SIEMIC Becomes Recognized Certification Body for Japan

 

SIEMIC is now approved as a Recognized Certification Body in the United States to perform product certification for both wireless devices and telecommunication products to Japan Radio law and Telecom Business Law. Under the MRA (Mutual Recognition Agreement) between USA and Japan, it allows the acceptance of certification decisions under each perspective country's regulations. … [Read more...]

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