功能安全管理-FSM

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Plan Execute Measure Improve
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Functional safety
IEC 61508 / 11 version of FSM
FSM focuses of procedures, the standard provide a good reference 61508 cover everything including safety system hardware and software development
Functional safety
Roles and responsibilities
Must be clearly delineated and communicated Each phase of Safety Life Cycle (SLC) and its associated activities One of the specifically noted primary objectives of functional safety management is Roles & Responsibilities
Part 1, Clause 5 lays out details of FSM Narrower coverage mange application more manageable
Functional safety
FSM – Key Issues
Functional Safety Management
Organization certified acc IEC 61511
All organizations doing HI project, MUST have a person attended a T309 course (HI training) Certifications of persons
Functional safety
Certified Functional safety programs
ABB has 3 certifications processed ongoing
Organization certifications, Gap analysis done by Stuart Nunns
IEC 61508 part 4- 3.1.9 define functional safety
part of the overall safety relating to the EUC and the EUC control system which depends on the correct functioning of the E/E/PE safety-related systems, other technology safety-related systems and external risk reduction facilities
Functional safety Engineering - Functional Safety Management
Extended Automation System 800xA
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Functional safety
Functional Safety Management - FSM
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Safety Requirement Specification development plan Design guidelines and methods Verification and Validation plans Operation and maintenance guideline Management of Change (MOC) procedures Functional Safety assessment plan
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Functional safety
Functional Safety Assessment
Does the safety system meet spec and actually achieve functional safety (freedom from unacceptable risk) Independent team: One competent senior person not involved in the design as a minimum) Should be performed after the stages below and MUST be done at least after stage 3.
System engineering knowledge Safety engineering knowledge Legal and regulatory knowledge More critical for novel systems or high SIL requirement
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More practical terms
Functional Safety Management governs equipment and process safety activities involving safety systems. The purpose is to reduce the possibility of a SYSTEMATIC FAULT.
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Functional safety
IEC 61511 - Standard Life Cycle
IEC 61511
Defines 61508 application in Process Sector Defines the Application of Safety Instrumented Systems for the Process Industry
TUV asi – Functional safety engineer CFSE /TUV sud – Functional safety expert
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Functional safety
Documentation and objectives
What need to be documented?
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Functional safety
Personnel and Competency
Ensure that staff “involved in any of the overall or software SLC activities” are competent Addressed specifically in Annex A in IEC61508 Training, experience and qualifications should all be assessed and documented
Stage 1 – After hazard and risk analysis and SRS Stage 2 – After SIS design Stage 3 – After commissioning and validation (before hazard is present) Stage 4 – After experience in operation and maintenance Stage 5 . After modification
Part 1- Clause 6, lays out details for FSM Broad coverage can make application challenging
61511 focuses on the process owners and safety system users
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Any information to effectively perform:
Each phase of the safety lifecycle Management of functional safety Verification and Validation Functional Safety assessment
Safety Planning- create a FSM plan Roles and responsibilities Personnel competency Documentation, documentation control Functional safety Verification and assessment Documented processes
Execute HW and SW design
Document
Modify
Analyze Design: Reliability Analysis of Safety Integrity & Availability
Document
Verify
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Operate and Maintain
Document
OK
Functional safety
Components of a FSM plan
Steps and sequences of work activities
Roles and responsibilities Personnel competency Documentation structure Verification tasks for each step
Management of Functional Safety Quality Systems Planning, people and paperwork Benefits
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Functional safety
What is Functional Safety Management
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Functional safety
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Baidu Nhomakorabea
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Functional safety
A FSM plan describes the Safety lifecycle
Analysis
Hazards Analysis/Risk Assessment: Define Design Target Document
Design
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Functional safety
FSM - Objectives
Specify management and technical activities during the Safety Lifecycle to achieve and maintain Functional safety Specify responsibility of persons and organizations Extend an existing and monitored quality system
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