1、 51321.52011( 60439-5:2006) 5 , ( )IE 60439-5:2006Low-voltage switchgear and controlgear assemblies Part 5: Particularrequirements for assemblies for power distribution in public networks(MOD) 27 2002 . 184- , 1.02004 . 1 , 42 331 , , 3 6 2011 . 698-4 - 60439-5:2006 . 5. , (IE 60439-5:2006 Low-volta
2、ge switchgear andcontrolgear assemblies Part 5: Particular requirements for assemblies for power distribution in publicnetworks). 18 , / . - , - 5 51321.599 ( 60439-598). - . - () . , , 2013 , - - II 51321.520111 .12 23 .44 45 , .46 .47 58 .7 () , 22 () , - .23 () - , 24 25III 51321.52011 60439-5:20
3、06 . 5. , - ( ). 51321.12007 ( 60439-12004) . 1. , - . . , 51321.1. , 51321.1. 51321.1 -, , , 101. - .IV 51321.52011 5 , ( )Low-voltage switchgear and controlgear assemblies. Part 5. Particular requirements for low-voltage assemblies forpower distribution in public networks (distribution cabinets an
4、d boards) 201301011 1.1 : - () (), - , 51321.1, , , . - , ( ). . (). , , - , . - , , . - , , .1 (, ), , - (. 7.6).2 , , . , -, . , . , , - .1 51321.52011( 60439-5:2006) 1.2 1.2 51321.1 : 12.4.0262001 . , - . . . 15.2012000 . - - . 50339.02003 ( 60269-1:1998) . 1. 504622009 ( 60446:2007) -, . 51321.1
5、2007 ( 60439-1:2004) - . 1. , . - 6023899 901259 . 1425496 , ( IP) 1515069 , . . , , 15543.189 . 1751672 . 2321678 . , , , . 2820789 ( 68-2-1181) . 2. . : 2821689 . 2. Db : , (12 + 12- ) - - , 1 - , , . (), - () . -, , , , .2 51321.1 :2.1.1.2 , ( ) (partially type-tested low-voltage switchgear and c
6、ontrolgear assembly (PTTA).2.1.101 () (cable distributioncabinet CDC): , () . , (. 101).2.1.101.1 (ground-mounted cable distribution cabinet): , . .2 51321.520112.1.101.2 , (pole-mounted cable distribution cabinet): , - . - .2.1.101.3 , (wall-mounted surface type cable distribution cabinet): , . .2.
7、1.101.4 , (wall-mounted recessed type cable distribution cabinet): , .1 , .2 .2.1.102 ()(substation cable distribution board SCDB): - , (, -, - . .), - (-, -, . .) , . , - .2.1.102.1 ( ) (SCDB indoor): , - , , .2.1.102.2 ( ) (SCDB outdoor cableconnected): , , .2.1.102.2.1 (SCDB-CCO ground mounted): , , .2.1.102.2.2 (SCDB-CCO pole mounted): , , .2.1.102.3 ( )(SCDB outdoor transformer mounted): , -, .2.1.102.3.1 (SCDB-TMO ground mounted): , - , .2.1.103.3.2 (SCDB-TMO pole mounted): , - , .2.2
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