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Nustar Terminals – Belfast Terminal
IHLA Safety Instrument System - Functional Safety Assessment
P & I Design Ltd
DOCUMENT NO: NU271001_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: F DATE: 30.06.17
Tel: + 44 (0)1642 617444
PAGE 2 OF 72
Fax: + 44 (0)1642 616447
www.pidesign.co.ukContents
1 REVISION HISTORY .................................................................................................................3 2 SCOPE..........................................................................................................................................3 3 INTRODUCTION........................................................................................................................3 3.1 Assumptions and Constraints .......................................................................................................4 3.2 Team Membership ........................................................................................................................4 4 FUNCTIONAL SAFETY ASSESSMENT – DEFINITIONS AND STAGES ...........................6 4.1 Hazard and Risk Assessment (BS EN61511-1:2004 Section 8.1) ...............................................7 4.2 Suitability of the Proposed Protection Layer................................................................................9 4.3 The recommendations arising from the hazard and risk assessment that apply to the safety instrumented system have been implemented or resolved. ........................................................10 4.4 Project Design Change Procedures are in place and have been properly implemented.............17 4.5 The recommendations arising from the previous functional safety assessment have been resolved.......................................................................................................................................17 4.6 Is the Safety Instrument System designed, constructed and installed in accordance with the safety requirement specification, any differences having been identified and resolved. ...........18 4.7 Are the safety, operating, maintenance and emergency procedures pertaining to the safety instrument system in place?........................................................................................................66 4.8 Are the safety instrument system validation planning appropriate and have the validation activities been completed?..........................................................................................................66 4.9 Has the employee training been completed and has appropriate information about the safety instrumented system been provided to the maintenance and operating personnel? ...................66 4.10 Are plans or strategies for implementing further safety assessments in place? .........................66 4.11 Compliance to BS EN 61511......................................................................................................66 5 CONCLUSIONS ........................................................................................................................67 5.1 FSA meeting ...............................................................................................................................67 6 ACTIONS...................................................................................................................................69Appendices
1
Certification
a.
Pekos Ball Valves
b.
Actreg Actuators
c.
Norgeren SOV
2
Operating Procedures
3
P & I Drawings
4
LOPA Calculation with revised PL pfd and removal of ML