I.S. EN 50402:2017
Current
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE OR TOXIC GASES OR VAPOURS OR OF OXYGEN - REQUIREMENTS ON THE FUNCTIONAL SAFETY OF FIXED GAS DETECTION SYSTEMS
Hardcopy , PDF
English
01-01-2017
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.
National Foreword
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Functional modules and elements - Characterization
and requirements
6 Software
7 Combining Functional Modules to Safety Functions
8 Determination of hardware failure rates for
each safety function
9 Gas detection as part of an overall
safety function
10 Information requirements
11 Validation
12 Functional safety management
13 Functional safety assessment
14 Documentation
Annex A (normative) - Transformation of the
SIL-capabilities of gas detection systems
Annex B (normative) - Transformation from
generic standard requirements to modules
Annex C (informative) - Determination of
SIL-capability of a safety function of the
gas detection system
Annex D (informative) - Failure modes for
specific measuring principles
Pertains to detection and measurement apparatus and systems for flammable or toxic gases or vapours or oxygen.
| DocumentType |
Standard
|
| Pages |
104
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| NEN EN 50402 : 2017 | Identical |
| NBN EN 50402 : 2006 AMD 1 2009 | Identical |
| EN 50402:2017 | Identical |
| NF EN 50402 : 2017 | Identical |
| BS EN 50402:2017 | Identical |
| UNE-EN 50402:2017 | Equivalent |
| DIN EN 50402:2018-01 | Identical |
| UNE-EN 50402:2006 | Identical |
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