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Local Fuel plc - Shoreham Oil Terminal
Safety Instrument System Functional Safety Assessment Stage 5
P & I Design Ltd
DOCUMENT NO: LF364100_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: A DATE: 15.06.2015
Tel: + 44 (0)1642 617444
PAGE 12 OF 32
Fax: + 44 (0)1642 616447
www.pidesign.co.uk4.10 Verification Process To Ensure Proper Implementation
The design is to be verified by the designer in accordance with the quality and management
of functional safety policies and in accordance with BS EN 61511. At the design stage testing
documentation is to be produced the purpose of which is to provide a series of testing
procedures which will ensure that the probability of failure on demand figure of the installed
system is maintained through the operating life of the SIS. Where known, dangerous
undetected failures should be identified and a method of detecting for these included within
the testing regime.
In addition necessary FAT and SAT are to be conducted to ensure the installed system
performs in the required manner.
All testing documentation to be reviewed as part of this FSA on completion of the
modification.
Local Fuel plc will also utilise their documents LF363003_RPT – Policy & Lifecycle
Activities and LF363004_RPT – SIS Safety Plan for Management of Functional safety
purposes.
4.11 SIS Lifecycle Requirements Of The Modification
As stated previously all lifecycle documentation is being updated and as such is to be reviewed
as part of this FSA.
4.12 Documentation That Will Require Updating:
Layer of Protection Analysis – depending on outcome of Action 1.
Safety Requirement Specification
System Verification Document
Loop Drawings
Cable & Wiring Drawings
Testing Documentation
Management of Functional Safety Document
4.13 Operating Manuals And Documentation
All design documentation is to be re-issued together with manufacturers maintenance
manuals. Local Fuel to develop operator manuals or other suitable guidelines for operation
and actions to take in the result of SIS activation.
Action 2: