GB/T 20438.4-2017: Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 4: Definitions and abbreviations

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Scope

1.1 This Part of GB/T 20438 contains the definitions and explanation of terms
that are used in GB/T 20438.1~GB/T 20438.7.
1.2 The definitions are grouped under general headings so that related terms
can be understood within the context of each other. However, it should be noted
that these headings are not intended to add meaning to the definitions.
1.3 GB/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. GB/T 20438.1, GB/T 20438.2, GB/T
20438.3 and GB/T 20438.4 are also intended for use as stand-alone
publications. The horizontal safety function of GB/T 20438 does not apply to
medical equipment in compliance with the IEC 60601 series.
1.4 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.
1.5 Figure 1 shows the overall framework of the GB/T 20438 series and
indicates the role that this Part plays in the achievement of functional safety for
E/E/PE safety-related systems.

Basic Data

Standard ID	GB/T 20438.4-2017 (GB/T20438.4-2017)
Description (Translated English)	Functional safety of electrical/electronic/programmable electronic safety-related systems -- Part 4: Definitions and abbreviations
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N10
Classification of International Standard	25.040
Word Count Estimation	34,374
Date of Issue	2017-12-29
Date of Implementation	2018-07-01
Older Standard (superseded by this standard)	GB/T 20438.4-2006
Regulation (derived from)	National Standard Announcement 2017 No. 32
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China