Sound and television broadcast receivers and associated equipment - Immunity characteristics - Limits and methods of measurement

Applies to television broadcast receivers, sound broadcast receivers and associated equipment intended for use in the residential, commercial and light industrial environment. Describes the methods of measurement and specified limits applicable to sound and television receivers and to associated equipment with regard to their immunity characteristics to disturbing signals. This standard is also applicable to the immunity of outdoor units of direct to home (DTH) satellite receiving systems for individual reception. Immunity requirements are given in the frequency range 0 Hz to 400 GHz. Radio-frequency tests outside the specified frequency bands or concerning other phenomena than given in this standard are not required. The objective of this standard is to define the immunity test requirements for equipment defined in the scope in relation to continuous and transient, conducted and radiated disturbances including electrostatic discharges. These test requirements represent essential electromagnetic immunity requirements. Test requirements are specified for each port (enclosure or connector) considered. The environments encompassed by this standard are residential, commercial and light-industrial locations, both indoor and outdoor. The following list, although not comprehensive, gives an indication of locations which are included: - residential properties, e.g. houses, apartments, etc.; - retail outlets, e.g. shops, supermarkets, etc.; - business premises, e.g. offices, banks, etc.; - areas of public entertainment, e.g. cinemas, public bars, dance halls, etc.; - outdoor locations, e.g. petrol stations, car parks, amusement and sports centres, etc.; - light-industrial locations e.g. workshops, laboratories, service centres, etc.; - car and boat. Locations which are characterized by their mains power being supplied directly at low voltage from the public mains are considered to be residential, commercial or light industrial.

Ton- und Fernseh-Rundfunkempfänger und verwandte Geräte der Unterhaltungselektronik - Störfestigkeitseigenschaften - Grenzwerte und Prüfverfahren

Récepteurs de radiodiffusion et de télévision et équipements associés - Caractéristiques d'immunité - Limites et méthodes de mesure

S'applique aux récepteurs de télévision, aux récepteurs de radiodiffusion sonore et aux appareils associés destinés à être utilisés dans un environnement résidentiel, commercial et dans l'industrie légère. Décrit les méthodes de mesure et spécifie des valeurs limites applicables aux récepteurs de radiodiffusion sonore et de télévision et aux équipements qui leur sont associés vis-à-vis de leurs caractéristiques d'immunité aux signaux non désirés. La présente norme concerne aussi l'immunité des unités extérieures des systèmes de réception individuelle par satellite. Les exigences d'immunité sont données dans la bande de fréquences de 0 Hz à 400 GHz. Les essais aux fréquences radioélectriques situées en dehors de ces bandes de fréquences spécifiées ou ceux concernant d'autres phénomènes que ceux donnés dans la présente norme ne sont pas exigés. L'objet de cette norme est de définir les exigences pour les essais d'immunité aux perturbations continues et transitoires, conduites et rayonnées, y compris les décharges électrostatiques, pour les appareils définis dans le domaine d'application. Ces exigences d'essais représentent les exigences essentielles de compatibilité électromagnétique concernant l'immunité. Les essais prescrits sont spécifiés pour chaque accès (enveloppe ou connecteur) considéré. Les environnements couverts par cette norme sont les emplacements résidentiels, les locaux commerciaux et de l'industrie légère, intérieurs et extérieurs. La liste suivante, bien que non exhaustive, donne une indication sur les emplacements qui sont couverts: - propriétés résidentielles, par exemple maisons, appartements, etc.; - lieux de vente au détail, par exemple boutiques, supermarchés, etc.; - centres d'affaires, par exemple bureaux, banques, etc.; - locaux de loisirs recevant du public, par exemple cinémas, bars, dancings, etc.; - sites extérieurs, par exemple stations service, parcs de stationnement, centres de loisirs et centres sportifs, etc.; - locaux de l'industrie légère, par exemple ateliers, laboratoires, centres de services, etc.; - véhicules et bateaux. Les emplacements qui sont caractérisés par leur alimentation directe en basse tension par le réseau public sont considérés comme résidentiels, commerciaux ou pour l'industrie légère.

Zvokovni in radiodifuzijski sprejemniki s pripadajočo opremo - Karakteristike odpornosti proti motnjam - Mejne vrednosti in metode merjenja (CISPR 20:2006)

Ta standard za zahteve odpornosti velja za radiodifuzijske sprejemnike, zvokovne sprejemnike in pripadajočo opremo, ki se uporabljajo v stanovanjskem, gospodarskem in lažjem industrijskem okolju. Ta standard opisuje metode merjenja in določene mejne vrednosti, ki veljajo za zvokovne in radiodifuzijske sprejemnike s pripadajočo opremo glede njihovih karakteristik odpornosti proti motečim signalom. Ta standard velja tudi za odpornost zunanjih enot satelitskih sprejemnih sistemov DTH (naravnost na dom) za posamično sprejemanje.

General Information

Status
Withdrawn
Publication Date
08-Jan-2007
Withdrawal Date
30-Nov-2009
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
28-Jul-2022
Completion Date
28-Jul-2022

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SLOVENSKI STANDARD
01-september-2007
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SIST EN 55020:2003
SIST EN 55020:2003/A1:2004
SIST EN 55020:2003/A2:2005
SIST EN 55020:2003/IS2:2007
=YRNRYQLLQUDGLRGLIX]LMVNLVSUHMHPQLNLVSULSDGDMRþRRSUHPR.DUDNWHULVWLNH
RGSRUQRVWLSURWLPRWQMDP0HMQHYUHGQRVWLLQPHWRGHPHUMHQMD &,635
Sound and television broadcast receivers and associated equipment - Immunity
characteristics - Limits and methods of measurement
Ton- und Fernseh-Rundfunkempfänger und verwandte Geräte der
Unterhaltungselektronik - Störfestigkeitseigenschaften - Grenzwerte und Prüfverfahren
Récepteurs de radiodiffusion et de télévision et équipements associés - Caractéristiques
d'immunité - Limites et méthodes de mesure
Ta slovenski standard je istoveten z: EN 55020:2007
ICS:
33.100.20 Imunost Immunity
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 55020
NORME EUROPÉENNE
January 2007
EUROPÄISCHE NORM
ICS 33.100.20 Supersedes EN 55020:2002 + A1:2003 + A2:2005
+ IS1:2007 + IS2:2007
English version
Sound and television broadcast receivers
and associated equipment -
Immunity characteristics -
Limits and methods of measurement
(CISPR 20:2006)
Récepteurs de radiodiffusion et de Ton- und Fernseh-Rundfunkempfänger
télévision et équipements associés - und verwandte Geräte der
Caractéristiques d'immunité - Unterhaltungselektronik -
Limites et méthodes de mesure Störfestigkeitseigenschaften -
(CISPR 20:2006) Grenzwerte und Prüfverfahren
(CISPR 20:2006)
This European Standard was approved by CENELEC on 2006-12-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 55020:2007 E
- 2 - EN 55020:2007
Foreword
The text of document CISPR/I/200/FDIS, future edition 6 of CISPR 20, prepared by CISPR SC I,
Electromagnetic compatibility of information technology equipment, multimedia equipment and receivers,
was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 55020 on
2006-12-01.
This European Standard supersedes EN 55020:2002 (+ corrigendum September 2005) + A1:2003
(+ corrigendum September 2005) + A2:2005 + IS1:2007 + IS2:2007.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-09-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-12-01
with the EN have to be withdrawn
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directives 89/336/EEC, 2004/108/EC and 1999/5/EC. See Annex ZZ.
Annexes ZA and ZZ have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard CISPR 20:2006 approved by CENELEC as a European Standard
without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
CISPR 22 NOTE  Harmonized as EN 55022:2006 (modified).
CISPR 24 NOTE  Harmonized as EN 55024:1998 (modified).
__________
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

1) 2)
CISPR 16-1-3 - Specification for radio disturbance and EN 55016-1-3 2006
immunity measuring apparatus and methods
Part 1-3: Radio disturbance and immunity
measuring apparatus - Ancillary equipment -
Disturbance power
1)
IEC 60050-161 - International Electrotechnical Vocabulary - -
(IEV)
Chapter 161: Electromagnetic compatibility

3)
IEC 60268-1 1985 Sound system equipment HD 483.1 S2 1989
Part 1: General
1) 2)
IEC 61000-4-2 - Electromagnetic compatibility (EMC) EN 61000-4-2 1995
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test
1) 2)
IEC 61000-4-3 - Electromagnetic compatibility (EMC) EN 61000-4-3 2006
Part 4-3 : Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test

1) 2)
IEC 61000-4-4 - Electromagnetic compatibility (EMC) EN 61000-4-4 2004
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test
IEC 61672-1 2002 Electroacoustics - Sound level meters EN 61672-1 2003
Part 1: Specifications
ETS 300 158 1992 Satellite Earth Stations and Systems (SES) - - -
Television Receive Only (TVRO-FSS)
Satellite Earth Stations operating in the 11/12
GHz FSS bands
ETS 300 249 1993 Satellite Earth Stations and Systems (SES) - - -
Television Receive-Only (TVRO) equipment
used in the Broadcasting Satellite Service
(BSS)
1)
Undated reference.
2)
Valid edition at date of issue.
3)
HD 483.1 S2 includes A1 to IEC 60268-1.

- 4 - EN 55020:2007
Publication Year Title EN/HD Year
1)
ITU-R - Measurement of audio-frequency noise - -
Recommendation voltage level in sound broadcasting
BS 468-4
ITU-R 1986 Nomenclature and description of colour bar - -
Recommendation signals
BT.471-1
1)
ITU-R - Methodology for the subjective assessment of - -
Recommendation the quality of television pictures
BT.500-10
1)
ITU-T - Transmission performance of television - -
Recommendation circuits designed for use in international
J.61 connections
Annex ZZ
(informative)
Coverage of Essential Requirements of EC Directives
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers the
essential requirements as given in Article 4(b) of the EC Directive 89/336/EEC and Annex I Article 1(b) of
the EC Directive 2004/108/EC, and the essential requirements of Article 3.1(b) (immunity only) of the EC
Directive 1999/5/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directives concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling within
the scope of this standard.
__________
COMMISSION
CISPR
ÉLECTROTECHNIQUE
INTERNATIONALE
INTERNATIONAL
Sixième édition
ELECTROTECHNICAL
Sixth edition
2006-11
COMMISSION
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Récepteurs de radiodiffusion et
de télévision et équipements associés –
Caractéristiques d’immunité –
Limites et méthodes de mesure
Sound and television broadcast
receivers and associated equipment –
Immunity characteristics –
Limits and methods of measurement
© IEC 2006 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
XC
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PRICE CODE
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МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

CISPR 20 © IEC:2006 – 3 –
CONTENTS
FOREWORD.11

1 Scope and object.15
2 Normative references .17
3 Terms, definitions and abbreviations .17
3.1 Terms and definitions .17
3.2 Abbreviations .23
4 Immunity requirements .23
4.1 Performance criteria .23
4.2 Applicability.27
4.3 Immunity requirements for the antenna input connector.27
4.4 Immunity requirements for audio connectors .43
4.5 Immunity requirements for AC mains power connectors.45
4.6 Requirements for immunity to RF voltages .45
4.7 Immunity requirements for the enclosure port .49
5 Immunity measurements.57
5.1 General conditions during testing .57
5.2 Performance assessment .59
5.3 Measurement of input immunity.63
5.4 Measurement of immunity to RF voltage (common mode) at antenna terminal.65
5.5 Measurement of screening effectiveness .69
5.6 Measurement of electrical transients .71
5.7 Measurement of immunity to induced voltages .71
5.8 Measurement of immunity from radiated fields.77
5.9 Measurement of electrostatic discharge.83
6 Interpretation of CISPR immunity limits .83
6.1 Significance of a CISPR limit.83
6.2 Compliance with limits on a statistical basis .83

Annex A (normative) Specification of the test-TV-set .103
Annex B (normative) Specification of filters and weighting network .105
Annex C (normative)  Specification of coupling units and of low-pass filter .109
Annex D (normative) Matching networks and mains stop filter.123
Annex E (normative) Construction information for the open stripline and for the mains
and loudspeaker band-stop filter .127
Annex F (normative) Calibration of the open stripline.139
Annex G (normative) Ferrite core sizes and materials .145
Annex H (informative) Frequency bands .147
Annex I (normative)  Broadcast receivers for digital signals .149
Annex J (informative)  Specification of the wanted signal.157
Annex K (informative)  Objective evaluation of picture quality .167

Bibliography.175

CISPR 20 © IEC:2006 – 5 –
Figure 1 – Examples of ports .23
Figure 2 – Audio powe
...

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