CISPR 25:2002

Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - Limits and methods of measurement

This standard is designed to protect receivers from disturbances produced by conducted and radiated emissions arising in a vehicle. Test procedures and limits given are intended to provide provisional control of vehicle-radiated emissions, as well as component/module conducted/radiated emissions of long and short duration. The standard: - establishes a test method for measuring the electromagnetic emissions from the electrical system of a vehicle; - sets limits for the electromagnetic emissions from the electrical system of a vehicle; - establishes test methods for testing on-board components and modules independent from the vehicle; - sets limits for electromagnetic emissions from components to prevent objectionable disturbance to on-board receivers; - classifies automotive components by disturbance duration to establish a range of limits. The contents of the corrigendum of March 2004 and the interpretation sheet of February 2007 have been included in this copy.

Caractéristiques des perturbations radioélectriques pour la protection des récepteurs utilisés à bord des véhicules, des bateaux et des engins - Limites et méthodes de mesure

La présente norme est destinée à protéger les récepteurs des perturbations produites sur un véhicule par induction et par rayonnement. Les procédures d'essais et limites données sont destinées à permettre un contrôle des émissions rayonnées des véhicules et des émissions conduites ou rayonnées de courte ou longue durée des équipements et modules. Cette norme: - définit une méthode d'essai pour la mesure des perturbations électromagnétiques émanant d'un système électrique monté sur véhicule; - établit les limites des perturbations électromagnétiques venant d'un système électrique implanté sur un véhicule; - définit une méthode d'essai des équipements ou des modules installés à bord des véhicules et considérés indépendamment vis-à-vis du véhicule; - établit les limites des perturbations électromagnétiques des équipements en vue de protéger la réception à bord du véhicule des perturbations potentielles; - classifie les équipements automobiles en fonction de la durée des perturbations qu'ils engendrent afin d'établir une échelle de niveaux. Le contenu du corrigendum de mars 2004 et de la feuille d'interprétation de février 2007 a été pris en considération dans cet exemplaire.

General Information

• Status: Published
• Publication Date: 19-Aug-2002
• ICS: 29.220.20 - Acid secondary cells and batteries
• ICS: 33.100.10 - Emission
• ICS: 33.100.20 - Immunity
• Technical Committee: CIS/D - Electromagnetic disturbances related to electric/electronic equipment on vehicles and internal combustion engine powered devices
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 26-Mar-2008

Relations

• Corrected By: CISPR 25:2002/COR1:2004 - Corrigendum 1 - Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - Limits and methods of measurement
• Effective Date: 05-Sep-2023
• Revised: CISPR 25:2008 - Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers
• Effective Date: 05-Sep-2023
• Revised: CISPR 25:2002/ISH1:2007 - Interpretation sheet 1 - Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - Limits and methods of measurement
• Effective Date: 05-Sep-2023
• Revises: CISPR 25:1995 - Limits and methods of measurement of radio disturbance characteristics for the protection of receivers used on board vehicles
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL
CISPR
ELECTROTECHNICAL
COMMISSION
Second edition
2002-08
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Radio disturbance characteristics for the
protection of receivers used on board vehicles,
boats, and on devices –
Limits and methods of measurement

This English-language version is derived from the original
bilingual publication by leaving out all French-language
pages. Missing page numbers correspond to the French-
language pages.
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Radio disturbance characteristics for the
protection of receivers used on board vehicles,
boats, and on devices –
Limits and methods of measurement

© IEC 2002 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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Publication CISPR 25 (Second edition – 2002) I-SH 01

Radio disturbance characteristics for the protection of receivers used on board

vehicles, boats, and on devices – Limits and methods of measurement

INTERPRETATION SHEET
This interpretation sheet has been prepared by CISPR subcommittee D: Electro-magnetic

disturbances related to electric/electronic equipment on vehicles and internal combustion
engine powered devices.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
CISPR/D/335/ISH CISPR/D/338/RVD

Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
There is a specific need for standards to define acceptable radio frequency performance of all
electrical/electronic products. CISPR 12 and CISPR 25 have been developed to serve the
road vehicle and related industries with test methods and limits that provide satisfactory
protection for radio reception.
CISPR 12 has been used for many years as a regulatory requirement in numerous countries,
to provide protection for radio receivers in the residential environment. It has been extremely
effective in protecting the radio environment outside the vehicle.
CISPR 25 controls the radio environment within the vehicle and was developed in response to
the variety of radio receivers that can be installed and/or used in modern motor vehicles. The
Subcommittee holds the view that interference to on-board radio reception caused by
equipment on the same vehicle is a quality, or customer satisfaction issue, rather than a
matter for government regulation.

CISPR 25 defines test methods for use by vehicle manufacturers and suppliers, to assist in
the design of vehicles and components and ensure controlled levels of on-board radio
frequency emissions.
Vehicle test limits are provided for guidance and are based on a typical radio receiver using
the antenna provided as part of the vehicle, or a test antenna if a unique antenna is not
specified. The frequency bands that are defined are not applicable to all regions or countries
of the world. For economic reasons, the vehicle manufacturer must be free to identify what
frequency bands are applicable in the countries in which a vehicle will be marketed and which
radio services are likely to be used in that vehicle.
February 2007 ICS 33.100.10; 33.100.20

- 2 -
As an example, many vehicle models will likely not have a television receiver installed; yet the
television bands occupy a significant portion of the radio spectrum. Testing and mitigating

noise sources in such vehicles is not economically justified.

The vehicle manufacturer should define the country in which the vehicle is to be marketed,

then choose the applicable frequency bands and limits. Component test parameters can then

be selected from CISPR 25 to support the chosen marketing plan.

Based upon the above information, National Standardization Organizations are encouraged to

adopt both documents as national standards, taking into account the intended purpose of

each of the documents.
___________
February 2007 ICS 33.100.10; 33.100.20

CISPR 25 © IEC:2002 – 3 –
CONTENTS
FOREWORD.7

INTRODUCTION.9

1 Scope.11

2 Normative references.13

3 Definitions.13

4 Requirements common to vehicle and component/module emissions measurement.19

4.1 General test requirements and test plan .19
4.1.1 Test plan.19
4.1.2 Determination of conformance of EUT with limits .19
4.1.3 Categories of disturbance sources (as applied in the test plan) .19
4.1.4 Examples of broadband disturbance sources.23
4.1.5 Narrowband disturbance sources.23
4.1.6 Operating conditions.23
4.1.7 Test report.23
4.2 Measuring equipment requirements.23
4.3 Shielded enclosure.25
4.4 Absorber-lined shielded enclosure (ALSE).25
4.4.1 Reflection characteristics.25
4.4.2 Size.25
4.4.3 Objects in ALSE .25
4.5 Measuring instrument.25
4.5.1 Maximum scan rate .27
4.5.2 Measuring instrument bandwidth.27
4.6 Power supply.29
5 Measurement of emissions received by an antenna on the same vehicle .31
5.1 Antenna measuring system .31
5.1.1 Type of antenna.31
5.1.2 Measuring system requirements .31
5.2 Method of measurement.35
5.3 Limits for vehicle-radiated disturbances.39
6 Measurement of components and modules .41

6.1 Test equipment.41
6.1.1 Ground plane.41
6.1.2 Power supply and AN .41
6.1.3 Signal/control lines network .43
6.2 Conducted emissions from components/modules – Voltage method .45
6.2.1 General.45
6.2.2 Ground plane arrangement.45
6.2.3 TEM cell arrangement.55
6.2.4 Limits for conducted disturbances from components/modules –
Voltage method .61
6.3 Conducted emissions from components/modules – Current probe method.63
6.3.1 General.63
6.3.2 Test set-up.63

CISPR 25 © IEC:2002 – 5 –
6.3.3 Test procedure.63

6.3.4 Limits for conducted disturbances from components/modules –

Current probe method.67

6.4 Radiated emissions from components/modules – ALSE method .69

6.4.1 General.69

6.4.2 Test set-up.69

6.4.3 Test procedure.73

6.4.4 Limits for radiated disturbances from components/modules –

ALSE method .81

6.5 Radiated emissions from components/modules – TEM cell method .81

6.5.1 General.81
6.5.2 Test set-up.83
6.5.3 Test procedure.85
6.5.4 Limits for radiated disturbances from components/modules –
TEM cell method.95
6.5.5 Disturbances radiated from integrated circuits .95

Annex A (informative) Flow chart for checking the applicability of CISPR 25 .97
Annex B (informative) Notes on the suppression of disturbances .99
Annex C (normative) Antenna matching unit – Vehicle test .101
Annex D (informative) Artificial network schematic.105
Annex E (normative) Rod antenna characterization – The equivalent capacitance
substitution method .109
Annex F (informative) TEM cell dimensions .117
Annex G (informative) Characterization procedure for shielded enclosure for component
testing .121
Annex H (informative) Sheath-current suppressor .123

CISPR 25 © IEC:2002 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE

____________
RADIO DISTURBANCE CHARACTERISTICS FOR THE PROTECTION OF

RECEIVERS USED ON BOARD VEHICLES, BOATS, AND ON DEVICES –

LIMITS AND METHODS OF MEASUREMENT

FO
...

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COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
Caractéristiques des perturbations
radioélectriques pour la protection des
récepteurs utilisés à bord des véhicules,
des bateaux et des engins –
Limites et méthodes de mesure
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COMMISSION
CISPR
ÉLECTROTECHNIQUE
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Deuxième édition
2002-08
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
Caractéristiques des perturbations
radioélectriques pour la protection des
récepteurs utilisés à bord des véhicules,
des bateaux et des engins –
Limites et méthodes de mesure
© IEC 2002 Droits de reproduction réservés
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Commission Electrotechnique Internationale
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Pour prix, voir catalogue en vigueur

Publication CISPR 25 (Second edition – 2002) I-SH 01

Radio disturbance characteristics for the protection of receivers used on board

vehicles, boats, and on devices – Limits and methods of measurement

INTERPRETATION SHEET
This interpretation sheet has been prepared by CISPR subcommittee D: Electro-magnetic

disturbances related to electric/electronic equipment on vehicles and internal combustion
engine powered devices.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
CISPR/D/335/ISH CISPR/D/338/RVD

Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
There is a specific need for standards to define acceptable radio frequency performance of all
electrical/electronic products. CISPR 12 and CISPR 25 have been developed to serve the
road vehicle and related industries with test methods and limits that provide satisfactory
protection for radio reception.
CISPR 12 has been used for many years as a regulatory requirement in numerous countries,
to provide protection for radio receivers in the residential environment. It has been extremely
effective in protecting the radio environment outside the vehicle.
CISPR 25 controls the radio environment within the vehicle and was developed in response to
the variety of radio receivers that can be installed and/or used in modern motor vehicles. The
Subcommittee holds the view that interference to on-board radio reception caused by
equipment on the same vehicle is a quality, or customer satisfaction issue, rather than a
matter for government regulation.

CISPR 25 defines test methods for use by vehicle manufacturers and suppliers, to assist in
the design of vehicles and components and ensure controlled levels of on-board radio
frequency emissions.
Vehicle test limits are provided for guidance and are based on a typical radio receiver using
the antenna provided as part of the vehicle, or a test antenna if a unique antenna is not
specified. The frequency bands that are defined are not applicable to all regions or countries
of the world. For economic reasons, the vehicle manufacturer must be free to identify what
frequency bands are applicable in the countries in which a vehicle will be marketed and which
radio services are likely to be used in that vehicle.
February 2007 ICS 33.100.10; 33.100.20

- 2 -
As an example, many vehicle models will likely not have a television receiver installed; yet the
television bands occupy a significant portion of the radio spectrum. Testing and mitigating

noise sources in such vehicles is not economically justified.

The vehicle manufacturer should define the country in which the vehicle is to be marketed,

then choose the applicable frequency bands and limits. Component test parameters can then

be selected from CISPR 25 to support the chosen marketing plan.

Based upon the above information, National Standardization Organizations are encouraged to

adopt both documents as national standards, taking into account the intended purpose of

each of the documents.
___________
February 2007 ICS 33.100.10; 33.100.20

– 2 – CISPR 25 © CEI:2002
SOMMAIRE
AVANT-PROPOS .6

INTRODUCTION.8

1 Domaine d'application.10

2 Références normatives.12

3 Définitions.12

4 Exigences communes pour les mesures de perturbations sur les véhicules et sur

les équipements/modules.18

4.1 Exigences générales d’essai et plan d'essai.18
4.1.1 Plan d'essai.18
4.1.2 Détermination de la conformité aux limites de l’appareil en essai.18
4.1.3 Catégories de sources de perturbations (comme spécifiées
dans le plan d'essai) .18
4.1.4 Exemples de sources de perturbations large bande.22
4.1.5 Sources de perturbations bande étroite .22
4.1.6 Conditions de fonctionnement .22
4.1.7 Rapport d'essai.22
4.2 Exigences concernant les appareils de mesure .22
4.3 Cage de Faraday .24
4.4 Cage de Faraday recouverte d'absorbants (chambre anéchoïque).24
4.4.1 Caractéristiques de réflexion.24
4.4.2 Dimensions.24
4.4.3 Objets dans la chambre anéchoïque .24
4.5 Instrument de mesure.24
4.5.1 Vitesse de balayage maximale .26
4.5.2 Bande passante de l’instrument de mesure .26
4.6 Alimentation .28
5 Mesure des perturbations reçues par une antenne située sur le même véhicule.30
5.1 Système d'antenne de mesure .30
5.1.1 Type d'antenne.30
5.1.2 Exigences pour les systèmes de mesure.30
5.2 Méthode de mesure .34
5.3 Limites des perturbations rayonnées sur véhicules.38
6 Mesures sur équipements et modules .40

6.1 Matériel d'essai.40
6.1.1 Plan de masse.40
6.1.2 Alimentation et réseau fictif.40
6.1.3 Réseau pour lignes de commande et de signaux .42
6.2 Émissions conduites par les équipements/modules – Méthode en tension .44
6.2.1 Généralités.44
6.2.2 Disposition du plan de masse.44
6.2.3 Configuration en cellule TEM .54
6.2.4 Limites pour les perturbations conduites des composants et modules
– Méthode en tension.60
6.3 Émissions conduites par les équipements/modules –
Méthode de la pince de courant .62
6.3.1 Généralités.62
6.3.2 Banc d'essai.62

– 4 – CISPR 25 © CEI:2002
6.3.3 Procédure d’essais .62

6.3.4 Limites pour les perturbations conduites des équipements/modules –

Méthode de la pince de courant .66

6.4 Émissions rayonnées des composants/modules –

Méthode de la chambre anéchoïque.68

6.4.1 Généralités.68

6.4.2 Banc d’essai.68

6.4.3 Procédure d'essais .72

6.4.4 Limites pour les émissions rayonnées des composants/modules –

Méthode de la chambre anéchoïque.80

6.5 Émissions rayonnées des composants/modules – Méthode de la cellule TEM .80
6.5.1 Généralités.80
6.5.2 Banc d'essai.82
6.5.3 Procédure d'essais .84
6.5.4 Limites pour les perturbations rayonnées par les
modules/équipements − Méthode de la cellule TEM.94
6.5.5 Perturbations rayonnées par les circuits intégrés.94

Annexe A (informative) Diagramme d'application de la CISPR 25 .96
Annexe B (informative) Notes sur l'antiparasitage.98
Annexe C (normative) Système d'adaptation d'antenne – Essai véhicule. 100
Annexe D (informative) Schéma du réseau fictif . 104
Annexe E (normative) Caractérisation des antennes fouet –
Méthode de substitution par capacité équivalente .108
Annexe F (informative) Dimensions des cellules TEM. 116
Annexe G (informative) Procédure de caractérisation de l'enceinte blindée
pour les essais de composants. 120
Annexe H (informative)
...

COMMISSION
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Deuxième édition
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Second edition
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COMMISSION
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Caractéristiques des perturbations
radioélectriques pour la protection des
récepteurs utilisés à bord des véhicules,
des bateaux et des engins –
Limites et méthodes de mesure
Radio disturbance characteristics for the
protection of receivers used on board vehicles,
boats, and on devices –
Limits and methods of measurement

Numéro de référence
Reference number
Révision de la présente publication Revision of this publication

Le contenu technique des publications de la CEI et du The technical content of IEC and CISPR publications

CISPR est constamment revu par la Commission et is kept under constant review by the IEC and CISPR,

par le CISPR afin qu'il reflète bien l'état actuel de la thus ensuring that the content reflects current
technique. technology.
Les renseignements relatifs à des questions à l’étude Information on the subjects under consideration and

et des travaux en cours entrepris par le comité work in progress undertaken by the technical
technique qui a établi cette publication, ainsi que la committee which has prepared this publication, as

liste des publications établies, se trouvent dans les well as the list of publications issued, is to be found at

documents ci-dessous: the following IEC sources:

• Site web de la CEI* • IEC web site*

• Catalogue des publications de la CEI • Catalogue of IEC publications
Publié annuellement et mis à jour Published yearly with monthly updates
mensuellement (On-line catalogue)*
(Catalogue en ligne)*
• iec e-tech • iec e-tech
Disponible à la fois sur le site web de la CEI* Available both at the IEC web site* and
et comme périodique imprimé as a printed periodical
Terminologie utilisée dans la présente Terminology used in this publication
publication
Seuls sont définis ici les termes spéciaux se Only special terms required for the purpose of this
rapportant à la présente publication. publication are defined herein.
En ce qui concerne la terminologie générale, le For general terminology, readers are referred to
lecteur se reportera à la CEI 60050: Vocabulaire IEC 60050: International Electrotechnical Vocabulary
Electrotechnique International (VEI), qui est établie (IEV), which is issued in the form of separate chapters
sous forme de chapitres séparés traitant chacun d'un each dealing with a specific field, the General Index
sujet défini, l’Index général étant publié séparément. being published as a separate booklet. Full details of
Des détails complets sur le VEI peuvent être obtenus the IEV will be supplied on request.
sur demande.
Pour les termes concernant les perturbations For terms on radio interference, see Chapter 902.
radioélectriques, voir le chapitre 902.
Symboles graphiques et littéraux Graphical and letter symbols
Pour les symboles graphiques, les symboles littéraux For graphical symbols, and letter symbols and signs
et les signes d'usage général approuvés par la CEI, le approved by the IEC for general use, readers are
lecteur consultera la CEI 60027: Symboles littéraux à referred to IEC 60027: Letter symbols to be used
utiliser en électrotechnique et la CEI 60617: Symboles in electrical technology and IEC 60617: Graphical
graphiques pour schémas; symbols for diagrams;
Les symboles et signes contenus dans la présente The symbols and signs contained in the present
publication ont été soit tirés de la CEI 60027 ou publication have either been taken from IEC 60027 or

CEI 60617, soit spécifiquement approuvés aux fins de IEC 60617, or have been specifically approved for the
cette publication. purpose of this publication.

* Voir adresse du site web sur la page de titre. * See web site address on title page.

COMMISSION
CISPR
ELECTROTECHNIQUE
INTERNATIONALE
INTERNATIONAL
Deuxième édition
ELECTROTECHNICAL
Second edition
2002-08
COMMISSION
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Caractéristiques des perturbations
radioélectriques pour la protection des
récepteurs utilisés à bord des véhicules,
des bateaux et des engins –
Limites et méthodes de mesure
Radio disturbance characteristics for the
protection of receivers used on board vehicles,
boats, and on devices –
Limits and methods of measurement

© IEC 2002 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: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
XB
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

Publication CISPR 25 (Second edition – 2002) I-SH 01

Radio disturbance characteristics for the protection of receivers used on board

vehicles, boats, and on devices – Limits and methods of measurement

INTERPRETATION SHEET
This interpretation sheet has been prepared by CISPR subcommittee D: Electro-magnetic

disturbances related to electric/electronic equipment on vehicles and internal combustion
engine powered devices.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
CISPR/D/335/ISH CISPR/D/338/RVD

Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
There is a specific need for standards to define acceptable radio frequency performance of all
electrical/electronic products. CISPR 12 and CISPR 25 have been developed to serve the
road vehicle and related industries with test methods and limits that provide satisfactory
protection for radio reception.
CISPR 12 has been used for many years as a regulatory requirement in numerous countries,
to provide protection for radio receivers in the residential environment. It has been extremely
effective in protecting the radio environment outside the vehicle.
CISPR 25 controls the radio environment within the vehicle and was developed in response to
the variety of radio receivers that can be installed and/or used in modern motor vehicles. The
Subcommittee holds the view that interference to on-board radio reception caused by
equipment on the same vehicle is a quality, or customer satisfaction issue, rather than a
matter for government regulation.

CISPR 25 defines test methods for use by vehicle manufacturers and suppliers, to assist in
the design of vehicles and components and ensure controlled levels of on-board radio
frequency emissions.
Vehicle test limits are provided for guidance and are based on a typical radio receiver using
the antenna provided as part of the vehicle, or a test antenna if a unique antenna is not
specified. The frequency bands that are defined are not applicable to all regions or countries
of the world. For economic reasons, the vehicle manufacturer must be free to identify what
frequency bands are applicable in the countries in which a vehicle will be marketed and which
radio services are likely to be used in that vehicle.
February 2007 ICS 33.100.10; 33.100.20

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As an example, many vehicle models will likely not have a television receiver installed; yet the
television bands occupy a significant portion of the radio spectrum. Testing and mitigating

noise sources in such vehicles is not economically justified.

The vehicle manufacturer should define the country in which the vehicle is to be marketed,

then choose the applicable frequency bands and limits. Component test parameters can then

be selected from CISPR 25 to support the chosen marketing plan.

Based upon the above information, National Standardization Organizations are encouraged to

adopt both documents as national standards, taking into account the intended purpose of

each of the documents.
___________
February 2007 ICS 33.100.10; 33.100.20

– 2 – CISPR 25 © CEI:2002
SOMMAIRE
AVANT-PROPOS .6

INTRODUCTION.8

1 Domaine d'application.10

2 Références normatives.12

3 Définitions.12

4 Exigences communes pour les mesures de perturbations sur les véhicules et sur

les équipements/modules.18

4.1 Exigences générales d’essai et plan d'essai.18
4.1.1 Plan d'essai.18
4.1.2 Détermination de la conformité aux limites de l’appareil en essai.18
4.1.3 Catégories de sources de perturbations (comme spécifiées
dans le plan d'essai) .18
4.1.4 Exemples de sources de perturbations large bande.22
4.1.5 Sources de perturbations bande étroite .22
4.1.6 Conditions de fonctionnement .22
4.1.7 Rapport d'essai.22
4.2 Exigences concernant les appareils de mesure .22
4.3 Cage de Faraday .24
4.4 Cage de Faraday recouverte d'absorbants (chambre anéchoïque).24
4.4.1 Caractéristiques de réflexion.24
4.4.2 Dimensions.24
4.4.3 Objets dans la chambre anéchoïque .24
4.5 Instrument de mesure.24
4.5.1 Vitesse de balayage maximale .26
4.5.2 Bande passante de l’instrument de mesure .26
4.6 Alimentation .28
5 Mesure des perturbations reçues par une antenne située sur le même véhicule.30
5.1 Système d'antenne de mesure .30
5.1.1 Type d'antenne.30
5.1.2 Exigences pour les systèmes de mesure.30
5.2 Méthode de mesure .34
5.3 Limites des perturbations rayonnées sur véhicules.38
6 Mesures sur équipements et modules .40

6.1 Matériel d'essai.40
6.1.1 Plan de masse.40
6.1.2 Alimentation et réseau fictif.40
6.1.3 Réseau pour lignes de commande et de signaux .42
6.2 Émissions conduites par les équipements/modules – Méthode en tension .44
6.2.1 Généralités.44
6.2.2 Disposition du plan de masse.44
6.2.3 Configuration en cellule TEM .54
6.2.4 Limites pour les perturbations conduites des composants et modules
– Méthode en tension.60
6.3 Émissions conduites par les équipements/modules –
Méthode de la pince de courant .62
6.3.1 Généralités.62
6.3.2 Banc d'essai.62

CISPR 25 © IEC:2002 – 3 –
CONTENTS
FOREWORD.7

INTRODUCTION.9

1 Scope.11

2 Normative references.13

3 Definitions.
...