1、 50571.4.432012/( 60364-4-43:2008)o 4-43 . IEC 60364-4-43:2008Low-voltage electrical installations Part 4-43 Protection for safety Protection against overcurrent(IDT) 1 , 42 3373 15 2012 . 865-4 60364-4-43:2008 - . 4-43. . (IEC 60364-4-43:2008 Low-voltage electrical installations Part 4-43 Protectio
2、n for safety Protection against overcurrent). - 1.5 ( 3.5) 50571. - 5 50571.594 ( 364-4-4377), 50571.994 ( 364-4-47377) 1.02012 ( 8). ( 1 ) , -.() - . , - (gost.ru) , 2014 , - - II 50571.4.432012/ 60364-4-43:2008430.1 .1430.2 .1430.3 2431 2431.1 2431.2 .3431.3 .3432 4432.1 , - .4432.2 , .4432.3 , .4
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4、y. Protection against overcurrent 20140101430.1 , ( 433) ( 434), , 436 ,- 433.3 ( ) 434.3( ). (. 435). 1 , 433, - , , . 2 . 3 , . 4 (), , - . 5 .430.2 , - , ( ): 60269-2 . 2: , ( , - ). JIEC 60269-2 Low-voltage fuses Part 2: Supplementary requirements for fuses for use by authorizedpersons (fuses ma
5、inly for industrial application) Examples of standardized systems of fuses A to J 60269-3 . 3: , ( , ). - F IEC 60269-3 Low-voltage fuses Part 3: Supplementary requirements for fuses for use by1 50571.4.432012/ 60364-4-43:2008 unskilledpersons(fusesmainlyforhouseholdorsimilarapplications) Examplesof
6、standardizedsystemsoffusesAtoF 60269-4 . 4. (IEC 60269-4 Low-voltage fuses Part 4:Supplementaryrequirementsforfuse-linksfortheprotectionofsemiconductordevices)60364-4-41 .4-41.-. (IEC 60364-4-41 Low-voltage electrical installations Part 4-41:ProtectionforsafetyProtectionagainstelectricshock) 60364-5
7、-52:2001 . 5-52. -. (IEC 60364-5-52 Electrical installation of buildings. Part 5-52. Selectionanderectionofelectricalequipment.Wiringsystems)60439-2 . 2. () IEC 60439-2 Low-voltageswitchgear and controlgear assemblies Part 2: Particular requirements for busbar trunking systems(busways)60724 -1(Um =
8、1,2)3(Um = 3,6kV)IEC60724 Short-circuittemperaturelimitsofelectriccableswithratedvoltagesof1kV(Um = 1,2kV)and3kV(Um = 3,6kV)60898() - . IEC 60898 (all parts) Circuit-breakers for overcurrentprotection forhouseholdandsimilarinstallations60947-2 . 2. (IEC 60947-2 Low-voltage switchgear and controlgear
9、 Part 2: Circuit-breakers)60947-3 . 3. , , - (IEC 60947-3 Low-voltage switchgear and controlgear Part 3: Switches, disconnectors, switch-disconnectorsandfuse-combinationunits) 60947-6-2 -. 6-2. . ( ) (CPS) IEC 60947-6-2 Low-voltage switchgear and controlgear. Part 6-2: Multiplefunctionequipment.Cont
10、rolandprotectiveswitchingdevices(orequipment)(CPS)61009() ,-(RCBOs)IEC 61009 (all parts) Residual current operated circuit-breakers with integral overcurrent protection forhouseholdandsimilaruses(RCBOs)61534() IEC61534(allparts)Powertracksystems430.3 -, - , ,.431 431.1 431.1.1 ,431.1.2.,.,-,.2 50571.4.432012/ 60364-4-43:2008431.1.2 TT TN, , - , - , , :a) , ;b) a), - .431.2 431.2.1 TT TN , , . , - . , . . -. . , 431.2.3. , PEN -.431.2.2 IT- . , . , :- , a , , - , , 0,2 - . , . . IT- .431.2.3 , , . , . , 431.3. 60364-5-52.431.3 , , - , .3 50571.4.432012/ 603
