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High Integrity?
Q. What is high integrity and why should it meet EN61511?
A. High Integrity, in this reference means that the automatic
shutdown system should be designed, installed and maintained to
ensure a specified reliability. i.e. SIL rated - Safety Integrity Level
The International Standard EN61511 provides a life cycle approach
to the:
Risk Assessment
Specification
Design
Installation
Maintenance
Proof Testing
Modification
De-commissioning of the Safety Instrumented Systems