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BASIC EMC STANDARDS IN TC 77 Buenos Aires, Argentina – 2003.11.13 Heinrich A. Kunz Chairman IEC TC77 EMC SCHAFFNER EMV AG Switzerland. TC 77 Strategic Policy Statement.
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BASIC EMC STANDARDS IN TC 77Buenos Aires, Argentina – 2003.11.13Heinrich A. KunzChairman IEC TC77 EMCSCHAFFNER EMV AGSwitzerland
TC 77 Strategic Policy Statement • « The main task of TC 77 (and its subcommittees) is to prepare basic documents, with regard to the specification of electromagnetic environments, emission, immunity, test procedures, measurement techniques, etc. » www.schaffner.com
Structure of IEC TC 77 • TC 77 scope: prepare EMC standards and reports with emphasis on basic immunity and emission standards. Support product committees on request. www.schaffner.com
Basic EMC Standards • The basic EMC standards and other publications: • give the general rules to achieve Electromagnetic Compatibility • may be applied by all product families • serve as reference documents for the product committees • are developed by TC 77 of IEC and taken by CENELEC with no or slight amendments www.schaffner.com
Basic EMC Standards 1 • The basic EMC publications: • a) may be standards or technical reports • b) are general not dedicated to a specific product • c) concern: • terminology (61000-1-y) • description of EM phenomena (61000-2-y) • description and classification of the environment (61000-2-y) • specification of compatibility levels (61000-3-y) • general requirements for emission limitation (61000-3-y) • suggested test levels with regard to the immunity of equipment (61000-4-y) • measurement and test techniques (61000-4-y) • installation guidelines (61000-5-y) www.schaffner.com
Basic EMC Standards 2 • The basic EMC publications: • d) should not include prescribed limits and related performance covered by: • generic standards • product family standards • product standards www.schaffner.com
Basic EMC standards developed by TC 77 www.schaffner.com
Basic EMC standards developed by SC 77A (cont.) www.schaffner.com
Basic EMC standards developed by SC 77A (cont.) www.schaffner.com
Basic EMC standards developed by SC 77A (cont.) www.schaffner.com
Basic EMC standards developed by SC 77A – Discussion • IEC 61000-4-7 - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto • Illustration of harmonic and interharmonic groups (here represented for a 50 Hz window) www.schaffner.com
Basic EMC standards developed by SC 77A – Discussion • IEC 61000-4-11 - Voltage dips/interruptions/variations immunity www.schaffner.com
Basic EMC standards developed by SC 77A – Discussion • IEC 61000-4-14 - Voltage fluctuation immunity www.schaffner.com
Basic EMC standards developed by SC 77B www.schaffner.com
Basic EMC standards developed by SC 77B (cont.) www.schaffner.com
Basic EMC standards developed by SC 77B – Discussion • IEC 61000-4-2 - Electrostatic discharge immunity test www.schaffner.com
Basic EMC standards developed by SC 77B – Discussion • IEC 61000-4-3 - Radiated, radio-frequency, electromagnetic field immunity test www.schaffner.com
Basic EMC standards developed by SC 77B – Discussion • IEC 61000-4-4 - Electrical fast transient/burst immunity test www.schaffner.com
Basic EMC standards developed by SC 77B – Discussion • IEC 61000-4-5 - Surge immunity test www.schaffner.com
Basic EMC standards developed by SC 77B – Discussion • IEC 61000-4-12 - Oscillatory waves immunity test www.schaffner.com
Basic EMC standards developed by SC 77C www.schaffner.com
Basic EMC standards developed by SC 77C (cont.) www.schaffner.com
Basic EMC standards developed by SC 77C – Discussion • IEC 61000-1-3 TR - The effects of high-altitude EMP (HEMP) on civil equipment and systems www.schaffner.com
Basic EMC standards developed by SC 77C – Discussion • IEC 61000-4-23 - Test methods for protective devices for HEMP and other radiated disturbances www.schaffner.com
Basic EMC standards developed by SC 77C – Discussion • IEC 61000-4-24 - Test methods for protective devices for HEMP conducted disturbances www.schaffner.com
Basic EMC standards developed by SC 77C – Discussion • IEC 61000-4-25 - HEMP immunity test methods for equipment and systems • Setup for the conducted immunity tests www.schaffner.com