6 / 74
Conoco Phillips – Bramhall Terminal
Gasoline Safety Instrument System - Functional Safety Assessment
P & I Design Ltd
DOCUMENT NO: SI297020_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: C DATE: 30.03.17
Tel: + 44 (0)1642 617444
PAGE 4 OF 21
Fax: + 44 (0)1642 616447
www.pidesign.co.uk3.1
Assumptions and Constraints
1
The safety instrumented function will operate as a demand mode system with demands
placed on the system from operations no greater than once a year.
2
The information made available to the FSA is a fair and valid representation of the
operations of the Conoco Phillips, Bramhall terminal for overfill protection on the tanks.
3
All documents are to be made available including the “LOPA study report”, the “Safety
Requirements Specification” and “SIS Design Report”, and all design documentation.
On initial review it appears that some lifecycle documentation may not be available for
this FSA, in which case the FSA will determine what additional documentation should
be retrospectively produced.
4
This document is to be read in conjunction with document SI297021_RPT – SIS
Compliance Document.