CFSE - Certified Functional Safety Engineering I - Participant's Notebook - Exida 2007

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[ SIF Sensors J Logic Solver 0 Like a control system, a safety system has sensors. In the process industries sensors measure process parameters including pressure, temperature, flow, level, gas concentrations and other measurements. In the machine industries sensors measure human proximity, operator intrusion into a dangerous zone and other protective parameters. Copyright exida.com LLC 2001-2008 33 [ SIF Logic Solver J 0 Sensors I Logic Solver Final Elements] A safety system also has a logic solver, typically a controller, that reads signals from the sensors and executes preprogrammed actions to prevent or mitigate a process hazard. The controller does this by sending signals to final elements. ~~(4a_,~ Copyright exida.com LLC 2001-2008 34
Page 1 and 2: Functional Safety Engineering I \ \
Page 3 and 4: Table of Contents SECTION 1 SECTION
Page 5 and 6: SECTION 1 ,·_ Co"rse Presentation
Page 7 and 8: Functional Safety Engineering 1: Ri
Page 9 and 10: exida Certification S.A. in Switzer
Page 11 and 12: 'r~~lr~ ~ ~\lw'
Page 13 and 14: • 1960's SIS Evolution Hardwired
Page 15 and 16: "S0/90's Safety Design Process" ] P
Page 17 and 18: u IEC 61508 Standard 4 Targets Supp
Page 19 and 20: Safety Instrumented System Function
Page 21: [ Safety Integrity Level J 0 Safety
Page 25 and 26: [~___ s_e_c_t_io_n_1_:_s_u_m_m_a_r_
Page 27 and 28: Practical results of Implementing S
Page 29 and 30: 0 [ Safety Lifecycle "Analysis" Pha
Page 31 and 32: Safety Requirements Specification 0
Page 33 and 34: u [ Select Architecture • Objecti
Page 35 and 36: Safety Lifecycle "Operation" Phases
Page 37 and 38: Competency • IEC 61508 Personnel
Page 39 and 40: Certified Functional Safety Expert/
Page 41 and 42: [ Why do companies manage risk? ]
Page 43 and 44: [~_____ ln_d_iv_i_d_u_a_I_R_is_k __
Page 45 and 46: Tolerable Risk Level Example < Matr
Page 47 and 48: [ Risk Reduction using Inherent Ris
Page 49 and 50: S [ Risk Management Standards ] 0
Page 51 and 52: [~ ____ s_e_c_t_io_n_4_:_P_r_o_b_a_
Page 53 and 54: ( Rules of Probability- Venn Diagra
Page 55 and 56: [ Complementary Events 0 4 Compleme
Page 57 and 58: [ Probability Multiplication l 4 Fo
Page 59 and 60: Probability Addition Mutually Exclu
Page 61 and 62: Probability Addition Independent Ev
Page 63 and 64: Probability Addition Three Independ
Page 65 and 66: Probability Addition Three Independ
Page 67 and 68: Rules of Probability Exercises 0
Page 69 and 70: Fault Tree 'AND' Gates Independent
Page 71 and 72: [~_F_re_q_u_e_n_c_y_L_o_g_i_c__] EV
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Definition of Hazard 0 ~> A potenti
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What Is Process Hazards Analysis? 0
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Recommendations for Effective PHAs
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[~__ s_IF __ D_es_c_r_ip_t_io_n ___
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['-_ld_e_n_ti_fy_in_g_S_I_F_f_ro_m_
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[ Consequence Analysis Methods J f
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l~ __ A __ P_P_Iic_a_t_io_n __ Ex_e
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[ Likelihood Categorization J Likel
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[L ___ E_v_e_nt_T __ re_e_A_n_a_l_y
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Event Tree Drawing Example Result I
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Considering All the Impacts with Ri
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0 ' VJ t T M I I G A T I 0 N p R E
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Example Part 1 - Pipe Rupture LOPA
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Example- Pipe Rupture LOPA Solution
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Using Maintenance and Function Test
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Typical Protection Layers - Basic P
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Typical Protection Layers Mechanica
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0 [ SLC - SIL Selection l Process S
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Likelihood Part of the Hazard Matri
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[ Hazard Matrix Procedure 2] 0 41de
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Risk Graph Parameters Parameters Co
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Demand Rate (Likelihood) Parameters
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Risk Graph Example Solution () 4,,
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Frequency Based Targets Assign SIL
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Example 1: Individual Risk Based Ta
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[ Risk Integral Advantages
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0 Cost Benefit Analysis 4 Consideri
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Section 8: Safetv Requirements Spec
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Specification Communication ] How t
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[ More SRS Requirements J 0 4; The
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SRS Format: General Requirements Se
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Example: Plain Text Logic Descripti
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Example: Logic Diagram Create a Log
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[~___ A_v_o_i_d_in_g_S_R __ S_P_r_o
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0 [ Safety Lifecycle" Analysis" Pha
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SECTION 2 Exercises 0 0 Copyright©
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0 7. 8. 9. What measure is used in
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FSE I - Application Exercise 2 Name
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3. A fault tree is shown below. Wha
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FSE I - Application Exercise 5 Name
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1. A rupture disk set to relieve th
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FSE I - Application Exercise 8 Nmne
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Process Diagram: Vent to Safe Locat
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7. What measure is used in LOPA to
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FSE I - Application Exercise 2 Titl
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3. A fault tree is shown below. Wha
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1. No Event 0 2. No Event FIC-01 Fa
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3. A non-operated check valve, with
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. Risk Graph Consequence ~ Co Occup
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Process Description: A "wet" hydroc
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SECTION 3 Additional Resources 0 0
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0 IEC 61508 Overview Report 0 An ex
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Although the standard has been crit
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Safety integrity levels (Sils) are
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Part 3 covers the software requirem
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0 0 This translates into specific r
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0 The first part of the safety life
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safety achieved by the safety-relat
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6. the assigned safety integrity le
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Type A components are described as
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Part 3 requires that a process (suc
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2 the "techniques and measures" nec
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programming languages, detailed des
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support for the analyses, the softw
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There is of course no substitute to
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I DATA ON SELECTED PROCESS SYSTEMS
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I DATA ON SELECTED PROCESS SYSTEMS
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I DATA ON SELECTED PROCESS SYSTF.MS
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I DATA ON SEI.ECTED rROCF.SS SYSTEM
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l!b) I [ DATA ON SELECTED PROCF.SS
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0 0
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Functional Safety and Reliability T
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exida Industry Focus • Management
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Introduction of Course Participants
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Sample Data [ ~-----------D_a_to_s
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Discrete Distributions - pdf Distri
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Section 2: Basic Reliability Engine
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Random vs. Systematic Faults Aleato
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Terms Terminos High Demand Mode- ex
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Stress- Strength: Failures Esfuerzo
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IEC 61508 Key Variables: 1. Constan
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System Op.Hours 12 33 1 96 14 196 1
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Reliability I Safety Terminology Te
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Reliability I Safety Terminology Te
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j ""
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Mean Time to Restore Tiempo Medio p
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Availability. Single Failure Mode D
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Availability. Periodic Test and Ins
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The Effects of Incomplete Testing E
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Safety Integrity Levels - PFH Nivel
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Section 3: System Reliability Engin
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Quantitative System Analysis Techni
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[ Fault Trees Arboles de Falla l AC
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Fault Tree Model - PFavg Modele de
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Markov Models [__________ M~od~e~l~
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Multiple Failure Modes Multiples Mo
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Final Element Failure Modes Modos d
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Availability- Failure Modes Disponi
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Common Cause - Beta Model Causa Com
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exSILentia Beta Estimator exSILenti
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Common Cause - Beta Model Causa Com
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Failure Modes and Effects Analysis
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Failure Modes and Effects Analysis
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Multiple Failure Modes Multiples Mo
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Four Categories of Failure Rates Cu
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Failure Modes, Effects and Diagnost
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IEC61508/IEC61511 Safe Failure Frac
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exida Failure Rates ex ida Ratas de
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Application Exercise Set 4 Ejercici
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Functional Safety and the Safety Li
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A FSM Plan describes the Safety Lif
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~ Operated by the CFSE Governing Bo
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IEC 61511 Functional Safety Assessm
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Basic Architectures Arquitecturas B
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2oo2 Architecture - Redundancy to r
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New Generation Architectures Arquit
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Hybrid Diagnostic Based Architectur
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~~~~~~: Hardware Architecture Fault
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IEC 61511 field equipment IEC 61511
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l Section 7: Safety Instrumented Sy
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Equipment Selection Selecci6n de Eq
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exida Recommended Prior Use Criteri
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exida Recommended Prior Use Criteri
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IEC 61508 Certified Product Pressur
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~,,_,, ,...,, ;i;l'!EC€1151!8 CER
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[ Safety Manual Manual de Seguridad
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Failure Rate Data Models Modelos de
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[ Markov Analysis Analisis de Marko
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SIF Verification Example Ejemplo de
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SIF Verification Example Ejemplo de
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IEC61508 Safe Failure Fraction IEC6
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Trip Setting: Alarm Setting Diagnos
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Ex 3: Safety Transmitter+Safety PLC
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SIL Verification Tool Verificaci6n
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SIL Verification Tool Herramienta p
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Detailed Safety Lifecycle Cicio Vid
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Terms [ Terminos ~---- (r, Factory
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Installation Activities: Environmen
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Validation Activities Validaci6n: A
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Function Safety Assessment Funci6n
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Detailed Safety Lifecycle Cicio Vid
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Proof Test Prueba '\lt-me Proof tes
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Strategic Proof Test Estrategico de
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Periodic Inspection Testing I Recor
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Section 9: Operational Requirements
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References [ ~-------------R_e_f_e_
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Revision 4.0, September 2008 Functi
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Revision 4.0, September 2008 5. Whe
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FSE II, 4.0 -Solutions to Exercises
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FSE II, 4.0 - Solutions to Exercise
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e
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0 0
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depends on the correct functioning
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Five failure modes were obtained wh
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and Reliability.,. He is a fellow m
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0 0
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Other data sources include: 1. FMD-
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Table 1: Field ~·•~na ports I I
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Sfflnsnr Port !nforrnath:m 0 0 Figu
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0 0
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Techniques for achieving reliabilit
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