I.S. EN 954-1:1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SAFETY OF MACHINERY - SAFETY-RELATED PARTS OF CONTROL SYSTEMS - GENERAL PRINCIPLES FOR DESIGN
Hardcopy , PDF
12-12-2006
English
01-01-1997
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
0 Introduction
1 Scope
2 Normative references
3 Definitions
4 General considerations
4.1 Safety objectives in the design
4.2 General strategy for design
4.3 Process for the selection and design of safety measures
4.4 Principles for ergonomic design
5 Characteristics of safety functions
6 Categories
6.1 General
6.2 Specifications of categories
6.3 Selection and combination of safety-related parts to
different categories
7 Fault consideration
7.1 General
7.2 Fault exclusion
8 Validation
8.1 General
8.2 Validation plan
8.3 Validation by analysis
8.4 Validation by testing
8.5 Validation report
9 Maintenance
10 Information for use
Annexes
A (informative) Questionnaire for the design process
B (informative) Guidance for the selection of categories
C (informative) List of some significant faults and
failures for various technologies
D (informative) Relationship between safety, reliability
and availability for machinery
E (informative) Bibliography
ZA (informative) Clauses of this European Standard
addressing essential requirements or other provisions
of EU directives
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