1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS A IEC 62308 KS A IEC 62308:2008 2008 9 4 http:/www.kats.go.krKS A IEC 62308:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2008 9 4 2008-0490 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS A IEC 62308:2008 i .1 1 2 2 2 3 .3 4 3 5 4 6 4 6.1 .4
2、 6.2 .5 7 .8 7.1 .8 7.2 .14 8 .15 8.1 15 8.2 .15 8.3 , .16 9 17 9.1 .17 9.2 18 9.3 20 9.4 .22 9.5 24 9.6 26 10 .26 11 .27 11.1 27 11.2 27 11.3 28 A( ) / .29 A.1 29 A.2 / 29 B( ) .40 B.1 40 B.2 40 B.3 45 KS A IEC 62308:2008 47 KS A IEC 62308:2008 Equipment Reliability Reliability assessment methods 2
3、006 1 IEC 62308, Equipment reliability Reliability assessment methods , . , / . . , FTA . , . “ ” . . , , . , . . / . IEC . / , , , . . , , . KS A IEC 62308:2008 2 , . 1 , . . ( ) . . 6. , 7. , 8. , , 9. . A B . , , . 2 . . ( ) . KS A IEC 60300 1: 2004, 1: KS A IEC 60300 3 2: 2005, 3: 2: KS A IEC 60
4、300 3 3: 2005, 3: 3: KS A IEC 60300 3 4: 2004, 3: 4: KS A IEC 60300 3 5: 2003, 3: 5: KS A IEC 60300 3 9: 2002, 3: 9: KS A IEC 60300 3 11: 2004, 3: 11: KS A IEC 60300 3 12: 2004, 3: 12: KS A IEC 60812: 2003, (FMEA) KS A IEC 61025: 2003, (FTA) KS A IEC 61078: 2002, (RBD) KS A IEC 61160: 2006, KS A IEC
5、 61165: 2004, KS A IEC 61649: 2003, , KS A IEC 61709: 2006, KS A IEC 61710: 2003, KS A IEC 62308:2008 3 KS A IEC 61713: 2006, KS A IEC 61882: 2006, (HAZOP) IEC 60050 191: 1990, International Electrotechnical Vocabulary Chapter 191: Dependability and quality of service IEC 61508(all parts), Functiona
6、l safety of electrical/electronic/programmable electronic safety-related systems IEC 62380, Reliability data handbook Universal model for reliability prediction of electronics components, PCBs and equipment 3 IEC 60050 191 . 3.1 , , , 3.2 3.3 4 ASIC BITE COTS FEA FFOP FITS 10 FMEA FMECA , FRACAS , F
7、TA HALT IC LCC LRU MCTF MTBF MTBUR MTTF KS A IEC 62308:2008 4 MTTR / MTTSC MTTSI MTTWC RBD RCM RET SRU 5 t f(t) F(t) R(t) T * 6 6.1 . 6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 ( : ) 6.1.6 ( : ) 6.1.7 . (call rate) MTTF MTBF , , , , KS A IEC 62308:2008 5 . . 6.2 6.2.1 . . (: , ) . “ 80 % X Y .” “ 0.963 0.995 ” .
8、 KS A IEC 61649 . . , . MTTF( ) ( , ) . 6.2.2 R(t) . =tdtttR )(exp)( (1) , (t) . ( ) . dttdFdttdRtf)()()( = (2) , f(t) . . )()()(tRtft = (3) MTTF , . =0)(MTTF dttR (4) (t) , . , . )exp()( ttR = (5) KS A IEC 62308:2008 6 )exp()( ttf = (6) =)(t (7) 1MTTF = ( .) (8) . T* . , 1 000 000 1 000 000 1 . , 1
9、0 6 . . , 1/ . ( ) , MTTF . 63 % 0 MTTF , 37 % MTTF . . , , 1/(t) . , MTTF . 1 000 000 MTTF , ( ) . , 1 000 000 1 000 000 1 . , 63 % 1 000 000 . , MTTF . KS A IEC 62308:2008 7 1 MTTF( ) /km MCTF ( ) ( km) . . / MTTR( / ) / . MTTR( ) . MTTSC( ) / . . MTTWC( ) . MTTSI( ) . . 1 . , 1 % 1.1 10 6 h 1, 1
10、100 FITs, 0.01 , 100 1.1 1 000 10 ( , 1 000 9.95 ). 6.2.3 MTTF . . KS A IEC 61649, KS A IEC 61710 KS A IEC 60300 3 5 Weibull , . , . KS A IEC 60300 3 5 . MTTF , MTBF . MTBF MTTR F(t) . , KS A IEC 62308:2008 8 MTTF , , MTBF . 6.2.4 . . , . , , . . , . , . . , . . . . , . . , . , . 7 7.1 7.1.1 . 1 . ,
11、 . KS A IEC 62308:2008 9 1 2 IEC . 2 IEC IEC FTA FMEA RBD R&M LCC Markov KS A IEC 60300 3 1 KS A IEC 61025 KS A IEC 60812 KS A IEC 61078 KS A IEC 60300 3 4 KS A IEC 61160 KS A IEC 61078 KS A IEC 60300 3 12 KS A IEC 60300 1 KS A IEC 60300 3 9 KS A IEC 60300 3 11 KS A IEC 61713 KS A IEC 60300 3 3 KS A IEC 61882 KS A IEC 61165 IEC 61508 IEC 62380 . 7.1.1.1 ( ) . Markov FTA RBD FMEA LCC RCM KS A IEC 62308:2008 10 7.1.1.2 . , . , (redundancy) . . . 7.1.1.3 . . 7.1.1.4 . . 7.1.1.5 7.1.1.6 , . , . ( , ) . , . (KS A IEC 61014 ) . . 7.1.2 , , , , , . . KS A IEC 62308:2008 11 , , .