Safety Critical Element Management Manual


Safety Critical Element Management Manual



Download 0.52 Mb.
View original pdf
Page25/95
Date19.01.2022
Size0.52 Mb.
#58090
1   ...   21   22   23   24   25   26   27   28   ...   95
pdfslide.net scemanagementmanualep2009-9009
Safety Critical Element Management Manual
EP 2009-9009
Restricted
18
Figure 7: SCE Identification decision tree
Does the system or equipment belong to any of the SCE groups shown in the HSE case bow tie?
Q1. Has the system or equipment been subject to a credible RRM assessment
Q3.
Is the system or equipment inline with the hazard scenarios in the HSE case hazard register for Major Hazards?
Q2.
Non-SCE
?
?
?
No
Yes
No
No
No
Yes
Yes
SCE
identification
SCE
SCE
ü
ü
SCE
ü
SCE
ü
SCE
ü
S-RCM CRITICALITY CLASS
S-RBI CRITICALITY CLASS
SIFPro SIL Level
Criticality is High (H)
or Extreme (E)
Criticality is High (H)
or Extreme (E)
Criticality Negligible (N),
Low (L, Medium (M) or
Medium High (MH)
Criticality Negligible (N),
Low (L, Medium (M) or
MediumHigh (MH)
Non-SCE
Non-SCE
Non-SCE
Non-SCE
SIL=>1
SIL=a1 or a2
Yes i.e. risk is ABC, DE, DE or 3E
In RAM assessment, is the system or equipment criticality at severity 5 or red risk?
Q4.



Download 0.52 Mb.

Share with your friends:
1   ...   21   22   23   24   25   26   27   28   ...   95




The database is protected by copyright ©ininet.org 2024
send message

    Main page