🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 61508-5:2010

BS EN 61508-5:2010

$189.07

Functional safety of electrical/electronic/ programmable electronic safety related systems – Examples of methods for the determination of safety integrity levels

Published By Publication Date Number of Pages
BSI 2010 50
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

IEC 61508-5:2010 provides information on the underlying concepts of risk and the relationship of risk to safety integrity (see Annex A); a number of methods that will enable the safety integrity levels for the E/E/PE safety-related systems to be determined (see Annexes C, D, E, F and G). The method selected will depend upon the application sector and the specific circumstances under consideration. Annexes C, D, E, F and G illustrate quantitative and qualitative approaches and have been simplified in order to illustrate the underlying principles. These annexes have been included to illustrate the general principles of a number of methods but do not provide a definitive account. Those intending to apply the methods indicated in these annexes should consult the source material referenced. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. It has been subject to a thorough review and incorporates many comments received at the various revision stages. NEW! Also available: /2, containing all parts, together with a commented Redline version. Changes made in this 2nd edition are highlighted and commented by a leading world expert. This publication is of high relevance for Smart Grid.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
7 INTRODUCTION
9 1 Scope
10 Figures
Figure 1 – Overall framework of the IEC 61508 series
11 2 Normative references
3 Definitions and abbreviations
12 Annex A (informative) Risk and safety integrity – General concepts
16 Figure A.1 – Risk reduction – general concepts (low demand mode of operation)
Figure A.2 – Risk and safety integrity concept
17 Figure A.3 – Risk diagram for high demand applications
18 Figure A.4 – Risk diagram for continuous mode operation
19 Figure A.5 – Illustration of common cause failures (CCFs) of elements in the EUC control system and elements in the E/E/PE safety-related system
20 Figure A.6 – Common cause between two E/E/PE safety-related systems
22 Figure A.7 – Allocation of safety requirements to the E/E/PE safety-related systems, and other risk reduction measures
23 Annex B (informative) Selection of methods for determining safety integrity level requirements
26 Annex C (informative) ALARP and tolerable risk concepts
27 Figure C.1 – Tolerable risk and ALARP
28 Tables
Table C.1 – Example of risk classification of accidents
Table C.2 – Interpretation of risk classes
29 Annex D (informative) Determination of safety integrity levels – A quantitative method
31 Figure D.1 – Safety integrity allocation – example for safety-related protection system
32 Annex E (informative) Determination of safety integrity levels – Risk graph methods
35 Figure E.1 – Risk Graph: general scheme
36 Figure E.2 – Risk graph – example (illustrates general principles only)
37 Table E.1 – Example of data relating to risk graph (Figure E.2)
38 Table E.2 – Example of calibration of the general purpose risk graph
40 Annex F (informative) Semi-quantitative method using layer of protection analysis (LOPA)
42 Table F.1 – LOPA report
46 Annex G (informative) Determination of safety integrity levels – A qualitative method – hazardous event severity matrix
47 Figure G.1 – Hazardous event severity matrix – example (illustrates general principles only)
48 Bibliography

Related products

BS EN 61508-5:2010
$189.07