SI057001_MNL - Gasoline Overfill Protection SIS IMMEAS-SIS1 Design Manual

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Immingham East Terminal – Gasoline Overfill Protection

Safety Instrument System

P & I Design Ltd

DOCUMENT NO: SI277001_RPT

2 Reed Street, Thornaby, UK, TS17 7AF

ISSUE:

F

DATE: 31.10.14

Tel: + 44 (0)1642 617444

PAGE 2 OF 29

Fax: + 44 (0)1642 616447

www.pidesign.co.uk

Contents

1 REVISION HISTORY...............................................................................................................3 2 SCOPE .......................................................................................................................................3 3 DEFINITIONS AND ABBREVIATIONS ................................................................................4 4 SAFETY LIFE CYCLE .............................................................................................................5 5 RISK ANALYSIS AND ALLOCATION OF SAFETY FUNCTIONS....................................6 5.1 Interpretation of SIL Levels .......................................................................................................6 6 SPECIFICATION OF SAFETY INSTRUMENT SYSTEM ....................................................7 6.1 Safety Instrumented Function ....................................................................................................7 6.2 Interface between the SIS and BPCS .........................................................................................9 6.3 Operation..................................................................................................................................10 6.4 Functional Requirements - No. 4 East Tanks (Fixed Roof) .....................................................11 7 DESIGN & DEVELOPMENT OF SIS....................................................................................12 7.1 System Structure ......................................................................................................................12 7.2 Safety Instrumented Function – No 4 East Tanks....................................................................13

Appendices

1.

Endress & Hauser Safety Manual - Limit Level Measuring System

2.

Pilz PNOZ X4 – Safety Relay

3.

Eugen Seitz – Solenoid Valve

4.

Ball Valve PFD Data- Information Only

5.

Actuator PFD Data - Information Only