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GB/T 20438.1-2017: Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 1: General requirements Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 20438.1: Historical versions
Similar standardsGB/T 20438.1-2017: Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 1: General requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20438.1-2017 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 25.040 N 10 GB/T 20438.1-2017 / IEC 61508-1.2010 Replacing GB/T 20438.1-2006 Functional safety of electrical / electronic / programmable electronic safety-related systems - Part 1.General requirements (IEC 61508-1.2010, IDT) Issued on. DECEMBER 29, 2017 Implemented on. JULY 01, 2018 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of ContentsFOREWORD... 4 INTRODUCTION... 6 1 Scope... 9 2 Normative references... 12 3 Definitions and abbreviations... 13 4 Conformance to GB/T 20438... 13 5 Documentation... 14 5.1 Objectives... 14 5.2 Requirements... 14 6 Management of functional safety... 16 6.1 Objectives... 16 6.2 Requirements... 16 7 Overall safety lifecycle requirements... 21 7.1 General... 21 7.2 Concept... 31 7.3 Overall scope definition... 31 7.4 Hazard and risk analysis... 32 7.5 Overall safety requirements... 35 7.6 Overall safety requirements allocation... 38 7.7 Overall operation and maintenance planning... 46 7.8 Overall safety validation planning... 49 7.9 Overall installation and commissioning planning... 50 7.10 E/E/PE system safety requirements specification... 52 7.11 E/E/PE safety-related systems - realisation... 55 7.12 Other risk reduction measures - specification and realisation... 56 7.13 Overall installation and commissioning... 56 7.14 Overall safety validation... 57 7.15 Overall operation, maintenance and repair... 58 7.16 Overall modification and retrofit... 62 7.17 Decommissioning or disposal... 65 7.18 Verification... 67 8 Functional safety assessment... 68 8.1 Objective... 68 8.2 Requirements... 68 Annex A (Informative) Example of a documentation structure... 74 Bibliography... 80FOREWORDGB/T 20438 "Functional safety of electrical/electronic/programmable electronic safety-related systems” is divided into seven parts. -- Part 1.General requirements; -- Part 2.Requirements for electrical/electronic/programmable electronic safety-related systems; -- Part 3.Software requirements; -- Part 4.Definitions and abbreviations; -- Part 5.Examples of methods for the determination of safety integrity levels; -- Part 6.Guidelines on the application of GB/T 20438.2 and GB/T 20438.3; -- Part 7.Overview of techniques and measures; This Part is Part 1 of GB/T 20438. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 20438.1-2006 "Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1. General requirements". Compared with GB/T 20438.1-2006, the major technical changes are as follows. -- Add the requirements for the competence of persons in management of functional safety (see Clause 6); -- Add the E/E/PE system safety requirements specification phase in the overall safety lifecycle (see 7.10); -- Modify the evaluation method for evaluating independence (see Clause 8). This Part uses the translation method to equivalently adopt IEC 61508-1.2010 "Functional safety of electrical/electronic/programmable electronic safety- related systems - Part 1.General requirements". This Part was proposed by China Mechinery Industry Federation. This Standard shall be under the jurisdiction of National Technical Committee 124 on Industrial Process Measurement and Control of Standardization Administration of China (SAC/TC 124). The drafting organizations of this Part. Instrumentation Technology and Economy Institute, Beijing SP Zhishen Control Technology Co., Ltd., China Academy of Safety Science and Technology, Shanghai Institute of Process Automation & Instrumentation, Hangzhou Hollysys Automation Co., Ltd., Omron Industrial Automation (China)Co., Ltd., Siemens Ltd. China, ZONHO Electronic Technology Research and Design Institute of Shanghai. The drafters of this Part. Feng Xiaosheng, Xiong Wenze, Pan Gang, Shi Xueling, Wu Zongzhi, Luo An, Zhou Youzheng, Yang Liu, Fang Laihua, Li Jiajia, Li Jia, Zheng Wei, Zhang Long, Wang Haiqing, Meng Zouqing, Mei Hao. The previous versions of the standards which are replaced by this Part. -- GB/T 20438.1-2006.1 ScopeGB/T 20438.1, GB/T 20438.2, GB/T 20438.3 and GB/T 20438.4 are basic safety publications, although this status does not apply in the context of low complexity E/E/PE safety-related systems (see 3.4.3 of GB/T 20438.4-2017). As basic safety publications, they are intended for use by technical committees in the preparation of standards in accordance with the principles contained in IEC Guide 104 and ISO/IEC Guide 51.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 20438.2-2017, Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2.Requirements for electrical/electronic/programmable electronic safety-related systems (IEC 61508-2.2010, IDT)3 Definitions and abbreviationsFor the purposes of this document, the definitions and abbreviations given in GB/T 20438.4-2017 apply. 4 Conformance to GB/T 20438 The following equipment and materials shall be used. GB/T 20438 specifies the requirements for E/E/PE safety-related systems and has been developed to meet the full range of complexity associated with such systems.5 DocumentationThe information to be documented shall be as stated in the various clauses of this standard unless justified or shall be as specified in the product or application sector standard relevant to the application6 Management of functional safetySuppliers providing products or services to an organization having overall responsibility for one or more phases of the overall, E/E/PE system or software safety lifecycles (see 6.2.1), shall deliver products or services as specified by that organization and shall have an appropriate quality management system.7 Overall safety lifecycle requirementsWhere failures of the EUC control system place a demand on one or more E/E/PE safety-related systems and/or other risk reduction measures, and where the intention is not to designate the EUC control system as a safety- related system, the following requirements shall apply.8 Functional safety assessmentThe objective of the requirements of this clause is to specify the activities necessary to investigate and arrive at a judgement on the adequacy of the functional safety achieved by the E/E/PE safety-related system(s) or compliant items (e.g., elements/subsystems) based on compliance with the relevant clauses of GB/T 20438.Annex A(Informative) Example of a documentation structure This annex provides an example documentation structure and method for specifying the documents for structuring the information in order to meet the requirements in Clause 5. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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