Término solicitado: INTERFERENCIAS/(265,65,175)
1 Registro/s encontrado/s en CAT+NORMA
| Tipo de documento: | NORMA |
| Título: | METHODS OF MEASUREMENT OF THE SUPPRESSION CHARACTERISTICS OF PASSIVE EMC FILTERING DEVICES |
| Código de Doc.: | CISPR 17 |
| Autor Inst.: | International Electrotechnical Commission. IEC/CEI |
| Fecha: | 2011 |
| Estado: | |
| Objeto: | CISPR 17:2011 specifies methods to measure the radio interference suppression characteristics of passive EMC filtering devices used in power and signal lines, and in other circuits. The defined methods may also be applied to combinations of over-voltage protection devices and EMC filtering devices. The measurement method covers the frequency range from 9 kHz to several GHz depending on the device and test circuit. The standard describes procedures for laboratory tests (type tests) as well as factory tests. The suppression characteristics of EMC filters and components used for the suppression of EM disturbances, are a function of numerous variables such as impedance of the circuits to which they connect, operating voltage and current, and ambient temperature. This standard specifies uniform test methods that will enable comparison of filtering and suppression characteristics determined by test laboratories or specified by manufacturers. Measurement procedures are provided for unbiased and bias conditions. Measurements under bias conditions are performed to determine potential non-linear behaviour of the EMC filtering devices such as saturation effects in inductors with magnetic cores. This testing serves to show the usability in a specific application (such as frequency converters that produce high amplitudes of common mode pulse current and thus may drive inductors into saturation). Measurement under bias conditions may be omitted if the non-linear behaviour can be determined by other methods (e.g. separate saturation measurement of the inductors used). The first edition of CISPR 17 (1981) prescribed the measurement methods of insertion loss mainly for power-line filters. Today, however, many types of sophisticated EMC filters and suppression components can be found in various electronic devices. Those filters need to be characterized using standardized measurement methods. New methods for measurement of impedance and S-parameters for such EMI devices are included in this second edition |
| Campo de Aplic.: | The following significant changes were made with respect to the previous edition:- addition of required measurements with both an average detector and a peak or quasi-peak detector;- addition of methods and limits for the protection of new analogue and digital radio services, which cover the frequency range up to 2 500 MHz;- addition of a new measurement method for components (stripline) as an informative Annex G;- addition of the contents of CISPR 21 as Annex H; CISPR 21 in its entirety now becomes obsolete;- deletion of narrowband / broadband determination;- deletion of the Annex on rod antenna characterisation (this is now covered by CISPR 16-1-4);- deletion of the Annex on characterisation of shielded enclosure (CISPR 25 will be amended when the CISPR/D / CISPR/A Joint Task Force on chamber validation finishes its work). The contents of the corrigendum of January 2009 have been included in this copy |
| ICS: | 33.100.01 Electromagnetic compatibility in general |
| Idioma: | en,fr |
| Título en otro Idioma: | Méthodes de mesure des caractéristiques d'antiparasitage des dispositifs de filtrage CEM passifs |
| Edición: | 2.0 edition |
| Palabras Clave: | Compatibilidad electromagnética; Mediciones; Radiofrecuencia; Dispositivos; Interferencias; Filtración; Perturbaciones eléctricas; Métodos de medición |
| Páginas: | 135p. |
| Ingreso de la Info.: | 2011-08-04 |
| Para ver la norma completa busque en la base Normas (solo para personal del INTI) |
Fin
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