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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 12 OF 21
Fax: + 44 (0)1642 616447
www.pidesign.co.ukDocument SI297013_RPT, section 2 details the MTTR.
No dangerous combinations of output states of the SIS have been identified.
Document SI297013_RPT, section 2 states: This system will be installed in mainland UK
where it will not be subjected to extremes of temperature or humidity. The individual
elements of the system shall be designed for the process and operating conditions, the
environment and the site electrical area classification. Specifically, all wetted parts should be
suitable for Petroleum Spirits and Distillates (Gasoline, Diesel, Kerosene etc.).
The terminal operates in a single mode. The operation of the terminal is essentially a batch
process with parcels of fuel being imported to the terminal. The SIS is in operation at all times
unless the logic panel is de-energised. In which case the pipeline isolation valve would be
closed.
Document SI297013_RPT, section 2, states that isolation valves must conform fire safe
requirements.