- Tytuł:
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Badania kompatybilności elektromagnetycznej w świetle obowiązujących dokumentów normalizacyjnych
Electromagnetic compatibility testing in relation to existing standardization documents - Autorzy:
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Musiał, S.
Kubiak, I. - Powiązania:
- https://bibliotekanauki.pl/articles/209328.pdf
- Data publikacji:
- 2009
- Wydawca:
- Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
- Tematy:
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kompatybilność elektromagnetyczna
normalizacja
zaburzenia elektromagnetyczne
electromagnetic compatibility
standardization
electromagnetic disturbances - Opis:
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Obowiązujące obecnie dokumenty normalizacyjne odnoszące się do badań kompatybilności elektromagnetycznej, mimo ich znacznej liczby, można ze względu na pewne podobieństwa podzielić na dwie grupy: obowiązujące w przemyśle zbrojeniowym i cywilnym. Większość z nich zawiera jedynie odwołania do norm zasadniczych, w których to przedstawione są zarówno metody badań, jak i wymagania co do poziomów dopuszczalnych. W artykule zostały przedstawione podstawowe różnice pomiędzy tymi grupami dokumentów dotyczące zarówno metod pomiarowych, jak i dopuszczalnych poziomów. Do porównania i analizy przyjęto normy obronne NO-06-A200, NO-06-A500 oraz normę cywilną PN-EN 55022.
The paper presents basic differences between military, civilian and TEMPEST standardization documents, concerned with both the measurement methods and limits. Analysis and comparison were carried out on the basis of military standards (NO-06-A200 and NO-06-A500) and the civil standard PN EN 55022. The standard PN-EN 55022 "Information technology equipment. Radio disturbance characteristics. Limits and methods of measurement" includes both the test methods and acceptable levels. In spite of the fact that this standard applies to computer facilities, other standards refer to methods and limit showed in mentioned standard (for example PN-EN 55012 which concerns motor vehicles). The limits specified in the standard PN-EN 55022 are different and they depend on the device class (A and B), measuring distance, and detector type. Recommended distance equals 10 m or 30 m, whereas detector can be quasi - peek or average one. Standards NO-06-A200:2008 "Electromagnetic Compatibility. Limit levels of electromagnetic interferences and susceptibility" and NO-06-A500:2008 "Electromagnetic Compatibility. Test methods of electromagnetic interferences and susceptibility" contain test procedures and levels. These standards are based on the MIL-STD-461E. According to the standard NO-06-A500 there is required a distance of 1 m between EUT and received antenna (and only for that distance emission limits are contained in the standard NO-06-A200) using a peak detector. This standard recommends carrying out tests inside a shielded chamber. Shielded chamber must be equipped with absorption materials which parameters are not worse than specified in the standard. Moreover, this standard allows for measurements in echoic chamber and polygon tests (open area test site). In case of tests provided inside echoic chamber, the results could be distorted by reflections. Polygon tests are acceptable on the condition that the level of environmental disturbance is at least 6 dB below the limit. Limits presented in the standard vary considerably and depend on target place of installation of equipment (e.g. ships, aircraft ) and in case of conducted disturbances also on the levels of voltage and power. Such conditions have impact on the test frequency range. Dissimilar groups of documents are standards specified levels and test methods for equipment classified information processing. In accordance with these documents it is not important that emissions from devices exceed limits. Fundamental question is if emissions which exceed the limits are related to the information. To sum up: there are large variety of limits and tests which are connected with electromagnetic compatibility. Such a situation causes that choice of suitable standards for particular equipment is very difficult. - Źródło:
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Biuletyn Wojskowej Akademii Technicznej; 2009, 58, 4; 101-114
1234-5865 - Pojawia się w:
- Biuletyn Wojskowej Akademii Technicznej
- Dostawca treści:
- Biblioteka Nauki
Artykuł