Abstract
References
1.IEC 61508 Functional Safety: Safety Related Systems , 7 parts.
2.
Smith
D J
, Reliability, Maintainability and Risk , 5th Edition , Butterworth Heinemann , UK (ISBN: 0 7506 3752 8).
3.
Technis
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, Betaplus Version 1.0, 1997, Common Cause Failure Package User's Manual (+ISBN: 09516562 5.2).
4.
Institution of Gas Engineers' publication IGE/SR 15, Programmable Equipment in Safety Related Applications (ISSN: 0 367 7850).