IEC 62793:2020
(Main)Thunderstorm warning systems - Protection against lightning
Thunderstorm warning systems - Protection against lightning
IEC 62793:2020 describes the characteristics of thunderstorm warning systems (TWSs) in order to implement lightning hazard preventive measures.
Single sensors and/or a network of sensors (e.g. lightning location system) can be used as a TWS.
This second edition cancels and replaces the first edition, published in 2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- portable devices are no longer covered by this standard;
- in Clause 5, classes of TWS have been deleted;
- in Clause 6, updated figures and more detailed text are provided to better illustrate the alarm timeline;
- in Clause 9, the text has been summarized and refers now to the application guide given in Annex F;
- annexes have been reorganized;
- Annex E is normative.
Systèmes d'alerte aux orages - Protection contre la foudre
L'IEC 62793:2020 décrit les caractéristiques des systèmes d'alerte aux orages (TWS, Thunderstorm Warning Systems), afin de mettre en œuvre des mesures préventives contre les dangers de la foudre.
Des capteurs uniques et/ou des réseaux de capteurs (système de localisation de la foudre, par exemple) peuvent être utilisés comme TWS.
Cette deuxième édition annule et remplace la première édition parue en 2016. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- les appareils portatifs ne sont plus couverts par la présente norme;
- à l'Article 5, les classes de TWS ont été supprimées;
- à l'Article 6, des figures mises à jour et un texte plus précis fournissent une meilleure représentation de la chronologie de l'alarme;
- à l'Article 9, le texte a été synthétisé et fait désormais référence au guide d'application de l'Annexe F;
- les annexes ont été réorganisées;
- l'Annexe E est normative.
La présente version bilingue (2021-02) correspond à la version anglaise monolingue publiée en 2020-09.
La version française de cette norme n'a pas été soumise au vote.
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Thunderstorm warning systems – Protection against lightning
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IEC 62793
®
Edition 2.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Thunderstorm warning systems – Protection against lightning
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.020; 91.120.40 ISBN 978-2-8322-8725-5
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– 2 – IEC 62793:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 11
4 Thunderstorm phases and detectable phenomena for alarming. 12
5 Description of thunderstorm detectors and their properties . 13
6 Alarm method . 14
6.1 General . 14
6.2 Areas . 14
6.2.1 Target (TA) . 14
6.2.2 Surrounding a
...
IEC 62793
®
Edition 2.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Thunderstorm warning systems – Protection against lightning
Systèmes d'alerte aux orages – Protection contre la foudre
IEC 62793:2020-09(en-fr)
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