IEC/IEEE 60980-344:2020
(Main)Nuclear facilities - Equipment important to safety - Seismic qualification
Nuclear facilities - Equipment important to safety - Seismic qualification
IEC/IEEE 60980-344:2020 describes methods for establishing seismic qualification procedures that will yield quantitative data to demonstrate that the equipment can meet its performance requirements. This document is applicable to electrical, mechanical, instrumentation and control equipment/components that are used in nuclear facilities. This document provides methods and documentation requirements for seismic qualification of equipment to verify the equipment’s ability to perform its specified performance requirements during and/or after specified seismic demands. This document does not specify seismic demand or performance requirements. Other aspects, relating to quality assurance, selection of equipment, and design and modification of systems, are not part of this document. As seismic qualification is only a part of equipment qualification, this document is used in conjunction with IEC/IEEE 60780-323.
The seismic qualification demonstrates equipment’s ability to perform its safety function(s) during and/or after the time it is subjected to the forces resulting from at least one safe shutdown earthquake (SSE/S2). This ability is demonstrated by taking into account, prior to the SSE/S2, the ageing of equipment and the postulated occurrences of a given number of lower intensity operating basis earthquake (OBE/S1). Ageing phenomena to be considered, if specified in the design specification, are those which could increase the vulnerability of equipment to vibrations caused by an SSE/S2.
Installations nucléaires - Équipements importants pour la sûreté - Qualification sismique
IEC/IEEE 60980-344:2020 décrit les méthodes d'établissement des procédures de qualification sismique permettant d'obtenir des données quantitatives visant à démontrer que l'équipement peut satisfaire à ses exigences de performance. Le présent document s'applique aux équipements/composants électriques, mécaniques, d'instrumentation et de contrôle commande utilisés dans les installations nucléaires. Il donne les méthodes et exigences de documentation relatives à la qualification sismique des équipements afin de vérifier l'aptitude de ces derniers à satisfaire à leurs exigences de performances spécifiées pendant et/ou après les sollicitations sismiques spécifiées. Le présent document ne spécifie aucune sollicitation sismique ni exigence de performances. Les autres aspects, relatifs à l'assurance qualité, au choix des équipements et à la conception et la modification des systèmes ne relèvent pas du présent document. La qualification sismique ne représentant qu'une partie de la qualification des équipements, le présent document est utilisé conjointement avec l'IEC/IEEE 60780-323.
La qualification sismique démontre l'aptitude de l'équipement à exécuter sa ou ses fonctions de sûreté pendant et/ou après avoir été soumis aux efforts d'au moins un séisme majoré de sécurité (SSE/S2). Cette aptitude est démontrée en tenant compte, avant le séisme de référence en exploitation SSE/S2, du vieillissement de l'équipement et des éventuelles occurrences d'un certain nombre de séismes de référence en exploitation de moindre intensité (OBE/S1). Les phénomènes de vieillissement à prendre en considération, s'ils sont indiqués dans la spécification de conception, sont ceux qui peuvent augmenter la vulnérabilité des équipements aux vibrations provoquées par un SSE/S2.
Cette nouvelle édition annule et remplace la première édition de l'IEC 60980, parue en 1989, et constitue une révision technique. Elle remplace également la norme IEEE 344TM-2013.
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IEC/IEEE 60980-344
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Edition 1.0 2020-10
INTERNATIONAL
STANDARD
Nuclear facilities – Equipment important to safety – Seismic qualification
IEC/IEEE 60980-344:2020-10(en)
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IEC/IEEE 60980-344
®
Edition 1.0 2020-10
INTERNATIONAL
STANDARD
Nuclear facilities – Equipment important to safety – Seismic qualification
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– 2 – IEC/IEEE 60980-344:2020
IEC/IEEE 2020
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 11
4 Abbreviated terms . 19
5 General discussion of earthquake environment and equipment response. 20
5.1 General . 20
5.2 Earthquake environment . 20
5.3 Equipment on foundations .
...
IEC/IEEE 60980-344
®
Edition 1.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear facilities – Equipment important to safety – Seismic qualification
Installations nucléaires – Équipements importants pour la sûreté – Qualification
sismique
IEC/IEEE 60980-344:2020-10(en-fr)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2020 IEC, Geneva, Switzerland
Copyright © 2020 IEEE
All rights reserved. Unless otherwise specified, 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 being
secured. Requests for permission to reproduce should be addressed to either IEC at the address below or IEC’s
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Switzerland United States of America
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info@iec.ch www.ieee.org
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International Standards for all electrical, electronic and related technologies.
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IEC/IEEE 60980-344
®
Edition 1.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Nuclear facilities – Equipment important to safety – Seismic qualification
Installations nucléaires – Équipements importants pour la sûreté – Qualification
sismique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
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