SIST EN 61000-4-24:1997

Electromagnetic compatibility (EMC) -- Part 4: Testing and measurement techniques -- Section 24: Test methods for protective devices for HEMP conducted disturbance

Deals with methods for testing protective devices for HEMP conducted disturbance. It primarily covers testing of voltage breakdown and voltage-limiting characteristics but also methods to measure the residual voltage under HEMP conditions for the case of very fast changes of voltage (u) and current (i) as a function of time.

Elektromagnetische Verträglichkeit (EMV) -- Teil 4: Prüf- und Meßverfahren -- Hauptabschnitt 24: Prüfverfahren für Einrichtungen zum Schutz gegen leitungsgeführte HEMP-Störgrößen

Compatibilité électromagnétique (CEM) -- Partie 4: Techniques d'essai et de mesure -- Section 24: Méthodes d'essais pour les dispositifs de protection pour perturbations conduites IEMN-HA

Définit les méthodes d'essai concernant les dispositifs de protection IEMN-HA contre les perturbations conduites. Elle couvre principalement les essais de caractéristiques de tension de claquage et de limitation de la tension résiduelle incluant les méthodes de mesure de tension dans des conditions d'environnement IEMN-HA, dans le cas de variations très rapides de tension (u) et de courant (i) en fonction du temps.

Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 24: Test methods for protective devices for HEMP conducted disturbances - Basic EMC publication (IEC 61000-4-24:1997)

General Information

• Status: Published
• Publication Date: 31-Oct-1997
• ICS: 33.100.20 - Immunity
• Technical Committee: EMC - Electromagnetic compatibility
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-1997
• Due Date: 01-Nov-1997
• Completion Date: 01-Nov-1997
• Directive: 89/336/EEC - Electromagnetic compatibility (EMC)
• Ref Project: EN 61000-4-24:1997 - Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 24: Test methods for protective devices for HEMP conducted disturbance

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61000-4-24:1997
01-november-1997
Electromagnetic compatibility (EMC) - Part 4: Testing and measurement
techniques - Section 24: Test methods for protective devices for HEMP conducted
disturbances - Basic EMC publication (IEC 61000-4-24:1997)
Electromagnetic compatibility (EMC) -- Part 4: Testing and measurement techniques --
Section 24: Test methods for protective devices for HEMP conducted disturbance
Elektromagnetische Verträglichkeit (EMV) -- Teil 4: Prüf- und Meßverfahren --
Hauptabschnitt 24: Prüfverfahren für Einrichtungen zum Schutz gegen leitungsgeführte
HEMP-Störgrößen
Compatibilité électromagnétique (CEM) -- Partie 4: Techniques d'essai et de mesure --
Section 24: Méthodes d'essais pour les dispositifs de protection pour perturbations
conduites IEMN-HA
Ta slovenski standard je istoveten z: EN 61000-4-24:1997
ICS:
33.100.20 Imunost Immunity
SIST EN 61000-4-24:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61000-4-24:1997

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SIST EN 61000-4-24:1997

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SIST EN 61000-4-24:1997

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SIST EN 61000-4-24:1997

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SIST EN 61000-4-24:1997

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SIST EN 61000-4-24:1997
NORME
CEI
INTERNATIONALE
IEC
61000-4-24
INTERNATIONAL
Première édition
STANDARD
First edition
1997-02
Compatibilité électromagnétique (CEM) –
Partie 4:
Techniques d’essai et de mesure –
Section 24: Méthodes d’essais pour les dispositifs
de protection pour perturbations conduites IEMN-HA
Publication fondamentale en CEM
Electromagnetic compatibility (EMC) –
Part 4:
Testing and measurement techniques –
Section 24: Test methods for protective devices
for HEMP conducted disturbance
Basic EMC publication
 IEC 1997 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni utilisée No part of this publication may be reproduced or utilized in
sous quelque forme que ce soit et par aucun procédé, électronique any form or by any means, electronic or mechanical, including
ou mécanique, y compris la photocopie et les microfilms, sans photocopying and microfilm, without permission in writing from
l'accord écrit de l'éditeur. the publisher.
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Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE L
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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SIST EN 61000-4-24:1997
61000-4-24  IEC:1997 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION. 7
Clause
1 Scope . 9
2 Normative references. 9
3 Definitions. 9
4 Test methods for protective devices for conducted disturbance. 9
4.1 General. 9
4.2 Test set-up. 11
4.3 Pulse generator. 11
4.4 Launching line. 13
4.5 Test fixture. 13
4.5.1 General. 13
4.5.2 Type A fixtures. 13
4.5.3 Type B fixtures. 13
4.6 Termination. 15
4.7 Oscilloscope. 17
4.8 Test procedure. 17
4.8.1 Adjustment of the pulse generator. 17
4.8.2 Verification procedures. 17
4.8.3 Test. 19
4.8.4 Final examination of the DUT . 19
4.9 Referring to this standard. 19
Annex A – Bibliography . 21

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SIST EN 61000-4-24:1997
61000-4-24  IEC:1997 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 4: Testing and measurement techniques –
Section 24: Test methods for protective devices
for HEMP conducted disturbance
Basic EMC publication
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61000-4-24 has been prepared by subcommittee 77C: Immunity to
high-altitude nuclear electromagnetic pulse (HEMP), of IEC technical committee 77: Electro-
magnetic compatibility.
It forms section 24 of part 4 of IEC 61000. It has the status of a basic EMC publication in
accordance with IEC Guide 107.
The text of this standard is based on the following documents:
FDIS Report on voting
77C/37/FDIS 77C/40/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
Annex A is for information only.

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SIST EN 61000-4-24:1997
61000-4-24  IEC:1997 – 7 –
INTRODUCTION
The IEC has initiated the preparation of standardized methods to protect civilian society from
the effects of high-altitude nuclear bursts. Such effects could disrupt systems for
communications, electric power, information technology, etc.
This section of IEC 61000-4 is part of a complete set of standards that covers the entire
category of immunity to high-altitude nuclear electromagnetic pulse. The appropriate acronym
is either HA-NEMP or more simply HEMP.
The application of this standard is, however, not dependent on access to other sections and
parts of the IEC 1000 and IEC 61000, except for those specifically referred to.
Attention is drawn to IEC 1000-5-5.

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SIST EN 61000-4-24:1997
61000-4-24  IEC:1997 – 9 –
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 4: Testing and measurement techniques –
Section 24: Test methods for protective devices
for HEMP conducted disturbance
Basic EMC publication
1 Scope
This section of IEC 61000-4 deals with methods for testing protective devices for HEMP
conducted disturbance. It primarily covers testing of voltage breakdown and voltage-limiting
characteristics but also methods to measure the residual voltage under HEMP conditions for
the case of very fast changes of voltage (u) and current (i) as a function of time.
2 Normative references
The following normative document contains provisions which, through reference in this text,
constitute provisions of this section of IEC 61000-4. At the time of publication, the edition
indicated was valid. All normative documents are subject to revision, and parties to agreements
based on this section of IEC 61000-4 are encouraged to investigate the possibility of applying
the most recent edition of the normative document indicated below. Members of IEC and ISO
maintain registers of currently valid International Standards.
IEC 50(161): 1990, International Electrotechnical Vocabulary (IEV) – Chapter 161: Electro-
magnetic compatibility
3 Definitions
For the purposes of this section of IEC 61000-4, the following definitions apply:
3.1 DUT: Device under test
3.2 gas discharge tube: A gap, or several gaps with two or three metal electrodes
hermetically sealed so that gas mixture and pressure are under control, designed to protect
apparatus or personnel from high transient voltages.
3.3 primary protection element: First protective element seen from the unprotected side of
a protection measure, diverting the main part of the surge current.
3.4 protected side: The side of a protection measure where the equipment is situated that
has to be protected.
3.5 unprotected side: The side of a protection measur
...