IEEE IEEESTANDARDSASSOCIATION IEEE Standard Criteria for Safety Systems for Nuclear Power Generating Stations IEEEPower and EnergySociety Sponsored by the NuclearPower Engineering Committee IEEE IEEEStd603TM-2018 3Park Avenue (Revision of NewYork, NY10016-5997 IEEEStd603-2009) USA IEEE Std 603TM-2018 (Revision of IEEE Std 603-2009) IEEE Standard Criteria for Safety Systems for Nuclear Power Generating Stations Sponsor Nuclear Power Engineering Committee of the IEEEPowerand EnergySociety Approved 27 September 2018 IEEE-SA Standards Board Abstract:Minimum functional and design criteriafor thepower,instrumentation,and control portions of nuclear power generating station safety systems are established. The criteria are to mitigate the consequences of design basis events. The intent is to promote appropriate practices fordesignandevaluationof safetysystemperformanceandreliability.Althoughthe standardis safe shutdown, post-accident monitoring display instrumentation, interlock features, or any other systems, structures, or equipment related to safety. Keywords: associated circuits, Class 1E, design, IEEE 603TM, failure, maintenance bypass, The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2018 by The Institute of Electrical and Electronics Engineers, Inc All rights reserved. Published 7 December 2018. Printed in the United States of America IEEE is a registered trademark in the U.S. Patent & Trademark Ofice, owned by The Insttute of Electrical and Electronics Engineers Incorporated. PDF: ISBN 978-1-5044-5219-9 STD23342 Print: ISBN 978-1-5044-5220-5 STDPD23342 IEEE prohibits discrimination, harassment, and bullying. For more information, visit http:/www.ieee.org/web/aboutus/whatis/policies/p9-26.html. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.