1、 . 3 IEC 61511-3:2003Functional safety Safety instrumented systems for the process industry sector Part 3: Guidelines for the determination of the required safety integrity levels(IDT) 61511-32011 27 2002 . 184- , 1.02004 . 1 , 42 3 18 2011 . 470-4 61511-3:2003 . , . 3. - (IEC 61511-3:2003 Functiona
2、lsafety Safety instrumented systems for the process industry sector Part 3: Guidelines for thedetermination of the required safety integrity levels). - 1.5 ( 3.5). - , 5 - , - . () . - , , 2012 , - - II 61511-320111 12 , 23 . 23.1 23.2 .23.3 33.4 33.5 .43.6 .63.7 63.8 .7 () , ( ALARP), 8 () 11 () .1
3、7 D () . . 21 () . . 28 F () 32 () .38 39 61511-32011III - . - , . , . . . -, , () () -(). , : . , -/ . - , . - . , 61508, - (. 61511-1, A). , . . - . - , . : , , , , , . - . :- , ;- , () ()() ;- , - ;- , , -. :- -, , , ;- , , - , . (, , , ) . , . (, , , , , ) - , , , . -, (). . - .IV 61511-32011 ,
4、61511-1. : ALARP. B . . D , - . E , - . F , (). 1 .V 61511-32011 1 . 3 Functional safety. Safety instrumented systems for the process industry sector.Part 3. Guidelines for the determination of the required safety integrity levels 201208011 :- - (. 3);- (. );- , () () (. B, C, D,EF). , :) , , -;b) ,
5、 , - ;c) , ;d) / , ;) , - ;f) . B, C, D, E F . , , . , , , , . 2 .1 61511-320112 , , , 61511-1 ( 3).3 . 3.1 . .3.2 ( 1), 2) , - ( ), . 2 61511-32011 2 , ( )1) . 61508-5 ( D ) , - , , .2), , , , . ( - ). ( ) - , , - . (. 3) , / . - , . :- ;- , -;- ;- , ;- , , -.3.3 , - , , , . , - , , y , . - . . , - . , - . .3.4 ,
