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Track 2 Session 1
9:10 to 10:10 a.m. Wednesday March 26, 2008
Functional Safety of SRECS for GE Gas
Turbine in Oil & Gas Applications According to IEC 62061
Requirements
Safety Instrumented Systems are
used in Gas Turbine (GT) systems designed to mitigate potentially
hazardous situations that can arise from machine deviations. The
international standard IEC62061, (released in 2005) applies to the
machinery sector within the framework of IEC61508. It is intended to
facilitate the specification of the performance of safety-related
electrical control systems in relation to the significant hazards of
machines. This establishes the relative safety integrity of a Safety
Instrumented System to perform its prescribed action over the
product life cycle (design, installation, and operation).
Establishing a well defined and structured approach for SIL
compliance for machinery helps the organization to:
- Improve reliability performance in safety instrumented loops and
subsequently improve the safety factor of Gas Turbine machines
- Conform with safety legislation (CE marking)
- Define an appropriate Safety Management System anchored to the new
ISO standard for GT safety
- Eliminate unreasonable risks from products / services
Key Words: Safety, Reliability, SIL, IEC61508, IEC 62061
Vincenzo Amato
General Electric Oil & Gas
Florence, Italy |
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