1、 1 (IE/TR 61912-1:2007, IDT) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC) IEC/TR61912-12013, 1.092 . 1.22009 . , - . , , -, 1 - ( ) - , 52 ()3 , (- 5 2013 . 61-) : ( 3166) 00497 ( 3166) 00497 AMBYKGMDRUTJUZ -4 21 2014 . 218- IE/TR 61912-12013 - 1 2016 .5 IE/TR 61912-1
2、:2007 Low-voltageswitchgear and controlgear Overcurrent protective devices Part 1: Application of short-circuit ratings( . -. 1. ). (en). - . - . (IDT)6 -, - . () . , - - , 2014 -, II IEC/TR 61912-120131 12 13 24 35 (, . .) . 36 46.1 .46.2 () . . 46.3 57 .67.1 .67.2 67.3 77.4 77.5 ( ), IEC 60898-1,
3、(), IEC 61009-1 8 () ( ) 13 () .14 16III IEC/TR 61912-12013 IEC 60947 - IEC 60439 , - - - . , , , - , . -, ,- ( ) , .IV IEC/TR 61912-12013 1 Low-voltage switchgear and controlgear. Overcurrent protective devices. Part 1. Application of short-circuit ratings 201601011 -, , - , . .2 , ., , - . ,.IEC 6
4、0255 ( ) Measuring relays and protection equipment ( )IEC 60269-1 Low-voltage fuses Part 1: General requirements ( -. 1. )IEC 60364 (all part) Electrical installations of buildings ( )IEC 60439-1 Low-voltage switchgear and controlgear assemblies Part 1: General rules ( . 1. )IEC 60439-2 Low-voltage
5、switchgear and controlgear assemblies Part 2: Particular requirements forbusbar trunking systems (busways) ( -. 2. )IEC 60898-1 Electrical accessories Circuit-breakers for overcurrent protection for household andsimilarinstallations Part1:Circuit-breakersfora.c.operation(. . 1. )IEC 60947-1 Low-volt
6、age switchgear and controlgear Part 1: General rules ( - . 1. )IEC 60947-2 Low-voltage switchgear and controlgear Part 2: Circuit-breakers ( - . 2. )IEC 60947-3 Low-voltage switchgear and controlgear Part 3: Switches, disconnectors,switch-disconnectors and fuse-combination units ( -1 IEC/TR 61912-12
7、013 . 3. , , - )IEC 60947-4-1 Low-voltage switchgear and controlgear Part 4-1: Contactors and motor-starters-Electromechanical contactors and motor-starters ( - . 4-1. . )IEC 60947-6-2 Low-voltage switchgear and controlgear Part 6-2: Multiple function equipment Control and protective switching devic
8、es (or equipment) (CPS) ( . 6-2. . - ( ) ()IEC 61009-1 Residual current operated circuit-breakers with integral overcurrent protection forhousehold and similar uses (RCBOs) Part 1: General rules ( () () - . 1. )3 IEC 60947-2 6.2 b) ii) IEC 60898-1 6.2 b) ii)A IEC 61009-1 6.2 b) ii) IEC 60947-4-1 6.2
9、 b) iii) I2t 6.3.2 I2t 6.3.1 () 6.2 b) iv) IEC 60947-3 6.2 b) i) Icw( ) 5 Ipk( ) 5 Icc( ) 5 Icm6.3.2 Icu6.3.2 Icw6.3.2 Ics6.3.2 Ics 6.3.3 Icn 6.3.4 Iq 7.4.2 Icn 7.5 () Icp4 ( ) 4 6.3.1 Ip4 6.3.12 IEC/TR 61912-12013 Ib4, 6.3.2 Ik4 () 44 - - . . , :- () Icp(prospective (available) short-circuitcurrent
10、): , , .- Ip(peak short-circuit current): - .- Ib(symmetrical short-circuit breakingcurrent): () - .- Ik(steady-state short-circuit current): - , :- ;- (). :- () (short-circuit protective device(SCPD): , - .- ( ) (conditional short-circuitrating (back-up protection): , - ( ) , .5 (, . .) (), - , . - () . - , ( , - , , . .). - IEC 60439. IEC 60439:- Icw( ) (rated short-time withstandcurrent (of a circuit of an assembly): ,3 IEC/TR 61912-12013 ,
