IEC 60744:2018

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Nuclear power plants – Instrumentation and control systems important to safety – Safety logic assemblies used in systems performing category A functions: Characteristics and test methods

Published By	Publication Date	Number of Pages
IEC	2018-05-14	74

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Categories: 21.120.20 - Couplings, IEC

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Description

IEC 60744:2018 provides requirements and recommendations for the design, construction and test of safety logic assemblies used in safety systems to perform category A safety functions (in accordance with IEC 61226). Safety logic assemblies include logic such as the hardwired logic assembly interfacing computer-based systems to switchgear, actuators or contactors to provide trip or engineered safety feature actuations. Safety logic assemblies are significant parts of a safety system and may include voting logic between redundant channels. This document provides a general description of safety logic assemblies for safety actuators control. The principles to meet dependability objectives are presented. The main features relating to the design requirements are described and explained.
This new edition includes the following significant technical changes with respect to the previous edition:
a) update of the references to standards published or revised since the issue of the first edition of the current standard, including IEC 61513 and IEC 61226;
b) additional requirements for operational and maintenance bypass use; requirements of voting logic; and others.

Additional information

Published Code	IEC
Published By	International Electrotechnical Commission
Publication Date	2018-05-14
Pages Count	74
Language	France
Edition	2.0
File Size	1.6 MB
ICS Codes	21.120.20 - Couplings

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IEC 60744:2018

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