Training Functional Safety 03 - IEC61508 61511 Standards Rev0.1
Functional Safety and Alarm Management (IEC 61508 / 61511 ... · PDF fileindustry guidance...
2
GSE Systems www.gses.com/engineering Definition Functional safety can be regarded as the detection of a potentially dangerous condition that results in the activation of a protective device or mechanism to prevent hazardous events arising. It can also provide mitigation to reduce the consequence of the hazardous event. This is typically known as Safety Instrumented Systems (SIS) and is achieved by the use of relay or PLC based systems along with instrumentation. Employers need to ensure: • The risks (frequency and consequence) of hazardous events are documented • The individual means of non-Instrumented mitigation are known and documented • The difference between required and actual is documented and understood • Steps are taken to reduce this difference to 0, using Safety Instrumented Systems (SIS) • The equipment used in SIS is fit for purpose • The reliability of The equipment used in SIS is determined (SIL) • A suitable maintenance routine is established in order to support the Safety Instrumented functions • All alarms are documented and tested • Operators have suitable documentation in order to carry out appropriate actions in the event of alarm • Where alarms are used as part of a risk reduction, these must be suitable independent. Functional Safety Assessment The result of this assessment provides the client with a written report that comprises; • A summary report that determined the suitability of new / existing Safety Instrumented Systems • Calculated Safety Integrity Levels • Recommendations on any work required to reduce the risk further. Alarm Management GSE can provide clients with an assessment of the existing alarm systems in order to determine their suitability and efficacy. We can provide clients with advice on improvements. • Automated Gauging Systems • Automatic Emergency Shutdowns • Assist operators with Full Alarm Management Assessment & Review • High-High Level Alarm Systems (high integrity, high levels) • HMI & System Interface Design (enabling front-line staff to reliably detect, diagnose and respond to potential incidents) Functional Safety and Alarm Management (IEC 61508 / 61511 & EEMUA 191)
Transcript of Functional Safety and Alarm Management (IEC 61508 / 61511 ... · PDF fileindustry guidance...
GSE Systems www.gses.com/engineering
Definition
Functional safety can be regarded as the detection of a potentially dangerous condition that results in the activation of a protective device or mechanism to prevent hazardous events arising. It can also provide mitigation to reduce the consequence of the hazardous event. This is typically known as Safety Instrumented Systems (SIS) and is achieved by the use of relay or PLC based systems along with instrumentation.
Employers need to ensure:
• The risks (frequency and consequence) of hazardous events are documented
• The individual means of non-Instrumented mitigation are known and documented
• The difference between required and actual is documented and understood
• Steps are taken to reduce this difference to 0, using Safety Instrumented Systems (SIS)
• The equipment used in SIS is fit for purpose
• The reliability of The equipment used in SIS is determined (SIL)
• A suitable maintenance routine is established in order to support the Safety Instrumented functions
• All alarms are documented and tested
• Operators have suitable documentation in order to carry out appropriate actions in the event of alarm
• Where alarms are used as part of a risk reduction, these must be suitable independent.
Functional Safety Assessment
The result of this assessment provides the client with a written report that comprises;
• A summary report that determined the suitability of new / existing Safety Instrumented Systems
• Calculated Safety Integrity Levels
• Recommendations on any work required to reduce the risk further.
Alarm Management
GSE can provide clients with an assessment of the existing alarm systems in order to determine their suitability and efficacy. We can provide clients with advice on improvements.
• Automated Gauging Systems
• Automatic Emergency Shutdowns
• Assist operators with Full Alarm Management Assessment & Review
• High-High Level Alarm Systems (high integrity, high levels)
• HMI & System Interface Design (enabling front-line staff to reliably detect, diagnose and respond to potential incidents)
Functional Safety and Alarm Management (IEC 61508 / 61511 & EEMUA 191)
T: +44 (0) 1642.613.622
F: +44 (0) 1642.616.480
Birch House
Princeton Drive
Stockton-on-Tees
TS17 6AJ
www.GSES.com
Connect with us on:
Functional Safety and Alarm Management
Providing you with the expertise and knowledge to Review, Access and Design your Safety Critical Systems to standards and guidelines, including IEC 61508 / 61511 – S.I.L. Safety Integrity Levels. Alarm Systems play an important role in assisting the operator in the safe operation of a process plant. Poor alarm system performance can result in critical events being overlooked by the plant operator, possibly contributing to major plant accidents. As a result – the design and management of alarm systems is receiving increasing attention.
GSE Systems can assist your Operations Team in prioritising and documenting your alarm systems in-line with worldwide industry guidance EEMUA® 191 (Engineering Equipment and Materials User Association).
GSE Systems Instrumentation & Control Design & Assessment Services can provide the following benefits to operators and engineering managers:
• Alerts and informs operations of Safety Critical Issues, Correct Course of Action and Abnormal Event Management
• Hard-wired Annunciated Alarms (SIL Rated)
• Master Alarm Databases (MS Access Engine)
• Comprehensive Graphic Design in-line with EEMUA and ASM Guidelines
• Processes to identify nuisance alarms (bad actors)
• Response to most important Event Critical Alarms (correct Prioritisation)
