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Is/Iec 61511-1

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Is/Iec 61511-1 इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान का अधकार, जी का अधकार” “परा को छोड न 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS/IEC 61511-1 (2003): Functional safety - Safety instrumented systems for the process industry sector, Part 1: Frameworks, definitions, system, hardware and software requirements [ETD 18: Industrial Process Measurement and Control] “ान $ एक न भारत का नमण” Satyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” “ान एक ऐसा खजाना > जो कभी चराया नह जा सकताह ै”ै Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” @ lS/lEC 61511-1:2003 ml immb,-,+ m&md’??+i-eRR&hid@ Indian Standard I FUNCTIONAL SAFETY — SAFET’Y’ INSTRUMENTED u, SYSTEMS FOR THE PROCESS INDUSTRY SECTOR PART 1 FRAMEWORK, DEFINITIONS, SYSTEM, HARDWARE AND $OFTWARE REQUIREMENTS ICS 25.040.01:13.110 .4 * BUREAU OF INDIAN STANDARDS MANAK E3HAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 J“mmy 2009 Price Group 16 lS/lEC 61511-1:2003 CONTENTS lNTRODUCTION ................................................................................................................... vi 1 Scope ............................................................................................................................. 1 2 Normative references ...................................................................................................... 6 3 Abbreviations and definitions .......................................................................................... 7 3.1 Abbreviations ......................................................................................................... 7 3.2 Definitions ................ ............................................................................................. 8 I 4 Conformance to this International Standard ....................................................................22 * 5 Management of functional safety .....................................................................................22 * 5.1 Objective ...............................................................................................................22 5,2 Requirements ........................................................................................................22 6 Safety life-cycle requirements .........................................................................................27 6.1 Objective ...............................................................................................................27 6.2 Requirements ........................................................................................................27 7 Verification .....................................................................................................................29 7.1 Objective ...............................................................................................................29 8 Process hazard and risk analysis ....................................................................................3O 8.1 Objectives .............................................................................................................3O 8.2 Requirements ........................................................................................................3O .4 9 Allocation of safety functions to protection layers ............................................................3l 9,1 Objective ...............................................................................................................3l 9.2 Requirements of the allocation process .................................................................3l 9.3 Additional requirements for safety integrity level 4 .................................................32 9.4 Requirements on the basic process control system as a protection layer ...............33 $! 9.5 Requirements for preventing common cause, common mode and dependent failures .................................................................................................................34 10 S1S safety requirements specification .............................................................................35 10.1 Objective ...............................................................................................................35 10.2 General requirements ............................................................................................35 10,3 S1S safety requirements ............................... .........................................................3b 11 S1S design and engineering ...........................................................................................36 11.1 Objective .............................................................................................................. 36 11.2 General requirements ........................................................................................... 36 11.3 Requirements for system behaviour on detection of a fault ................................... 38 11.4 Requirements forhardware fault tolerance ............................................................ 39 11.5 Requirements for selection of components and subsystems . .. ...... ......... .... 40 11.6 Field devices ......................................................................................................... 43 11.7 interfaces ................................................................... ..........................'' ............ 44 11.8 Maintenance ortestlng design requirements ......................................................... 46 11.9 SIF probability of failure ........................................................................................ 46 I I ,!, @ lS/lEC 61511-1:2003 12 Requirements for application software, including selection criteria for utility software ....47 12.1 Application software safety life-cycle requirements ............................................... 48 12.2 Application software safety requirements specification ..........................................54 123 Application software safety validation planning .....................................................56 12.4 Application software design and development ....................................................... 56 12.5 Integration of the application software with the S1S subsystem ............................. 61 . 12,6 FPL and LVL software modification procedures ....................................................62 12.7 Application software verification ............................................................................62 Factory acceptance testing (FAT) ...................... ........................................................... 63 * 13,1 objectives ........................................................................................................... 63 13.2 Recommendations ................................................................................................ 64 14 S1S installation and commissioning ............................ ...................................................65 . 14.1 Objectives ............................................................................................................ 65 14.2 Requirements ....................................................................................................... 65 15 S1S safety validation ...................................................................................................... 66 15.1 Objective .............................................................................................................. 66 15.2 Requirements ....................................................................................................... 66 16 S1S operation and maintenance ..................................................................................... 68 16.1 Objectives ............................................. .............................................................. 68 16.2 Requirements ....................................................................................................... 69 16.3 Proof testing and inspection .................................................................................. 70 17 S1S modificatio n ............................................................................................................. 71 17.1 Objective ... ... .... ............ ................................................................................... 71 17.2 Requirements ............................ .......................................................................... 71 18 SISdecommissioning .....................................................................................................72 18. ”1 Objectives ........................................................................................................... 72 18.2 Requirements ......................................................................................................
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