LF364001_MNL - Overfill Protection SIS Design Manual

Local Fuel – Shoreham Oil Terminal

Safety Requirement Specification

P & I Design Ltd

DOCUMENT NO: LF364005_RPT

2 Reed Street, Thornaby, UK, TS17 7AF

ISSUE:C DATE: 14.08.15

Tel: + 44 (0)1642 617444

PAGE 4 OF 19

Fax: + 44 (0)1642 616447

INTRODUCTION

This document has been prepared for the Safety Instrument System (SIS) associated with the

overfill protection of storage tanks at Local Fuel, Shoreham Oil Terminal. It is part of the life

cycle documentation of the SIS in accordance with BS EN 61508 & BS EN 61511 and to be a

working document throughout the life cycle of the Safety System.

This document is prepared as a retrospective Safety Requirement Specification for Local Fuel

plc to reflect that the existing installed Safety Instrumented System meets the requirements of

the LOPA.

2.1

Risk Analysis and Allocation of Safety Functions

A LOPA Risk Assessment was conducted on the Shoreham Gasoline Import and Storage

Facility on 8

December 2014.

The key personnel involved were:

Local Fuel Ltd

Les Salvidge, Managing Director

Dave Winser, Operations Manager

P & I Design Ltd

Mr D. R. Ransome –

Mr D. S. Regan

–

The outcome of the assessment showed that the existing SIL2 system installed on the gasoline

tanks at the terminal was adequate to bring the frequency of mitigated consequence into the

broadly acceptable region.