GB/T 20438.6-2017Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 6: Guidelines on the application of GB/T 20438.2 and GB/T 20438.3 (English PDF)
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine
Level / Type
National · Recommended
Issue date
December 29, 2017
Implementation date
July 1, 2018
Scope
GB/T 20438.6-2017 (Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 6: Guidelines on the application of GB/T 20438.2 and GB/T 20438.3) is available as an English-translated PDF.
GB/T 20438.6-2017 is the Chinese standard "Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 6: Guidelines on the application of GB/T 20438.2 and GB/T 20438.3".
Its scope clause reads: One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
In this context, the requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the publications prepared by those technical committees. Its clauses include definitions and abbreviations.
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Document preview — GB/T 20438.6-2017
National Standard of the People's Republic of China
- ICS
- 25.040
- Classification
- N 10
Issued by: General Administration of Quality Supervision, Inspection and Quarantine
Contents
- Foreword3
- Introduction5
- 1 Scope8
- 2 Normative References10
- 3 Definitions and Abbreviations10
- Annex A (informative) Application of GB/T 20438.2 and GB/T 20438.311
- Hardware Failure22
- Fraction - Worked Example99
- related Common Cause Failures in E/E/PE Systems103
- of GB/T 20438.3124
- Bibliography140
1 Scope
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. In this context, the requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the publications prepared by those technical committees.
2 Normative References
The 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 61805-2.2010, IDT)
3 Definitions and Abbreviations
For the purposes of this document, the definitions and abbreviations given in GB/T 20438.4-2017 apply.
Annex A (informative)
Application of GB/T 20438.2 and GB/T 20438.3
Annex B (informative)
Example of Technique for Evaluating Probabilities of Hardware Failure
B.1 General
This annex provides possible techniques for calculating the probabilities of hardware failure for E/E/PE safety-related systems installed in accordance with GB/T 20438.1,
GB/T 20438.2 and GB/T 20438.3.
GB/T 20438.4-2017 | GB/T 20438.7-2017 | GB/T 20438.5-2017 | GB/T 20438.3-2017 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.
Referenced standards
Normative references
IEC 61805
Cited by
- GB/Z 44564-2024Safety instrumented systems - Process analysis technology systems
- GB/T 41295.2-2022Application guide of functional safety—Part 2:Design and realisation
- GB/T 20818.11-2018Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 11: List of properties (LOPs) of measuring equipment for electronic data exchange - Generic structures
- GB/T 35850.1-2018Programmable electronic systems in safety-related applications for lifts (elevators), escalators and moving walks -- Part 1: Lifts (elevators) (PESSRAL)
- NB/T 25019-2014Technical specification for turbine instrument and control of nuclear power plant
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Related Standards
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
GB/T 20438.1-2017 — Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 1: General requirements
GB/T 20438.3-2017 — Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 3: Software requirements
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