KS C 0280-1997 Classification of environmental conditions Part 3 Classification of groups of environmenta1 parameters and their severities Introduction《环境条件分级 环境参数分类及其严酷程度分级通则》.pdf

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2、l conditions Part 3:Classification of groups of environmenta1 parameters and their severities Introduction 1. , , () . ( , , ) . ( ) . . 2. . . . , . . . 3. IEC 721-3-1:() 721-3-2: 721-3-3: 721-3-4: 721-3-5: 721-3-6: 721-3-7: - (1-,2-, 3- ) - (K- , B- , C- , S- , M- ). . - . . C 0280 - 1997 H() L()

3、. L . 2K3 2= K= 3= , . . . 4. . KS C 0278( ) . KS C 0278 IEC 721-1 1990(Classifi cation of environmental conditions Part l :Classificatio- n of environmental parameters and their severities) ( ) , ( ) . . 1 . 1 , 0 P( 0) . P( 1) 0.01 2 C 0280 - 1997 . . , . . T . P( 1, y y 1) = P ( 1) P (y y 1) P (

4、1) =P (y y 1) P( 1, y y 1) =0.0001 . 0.01 . (0.01 ). 5. 5.1 , . . , , . . ( ) , . . , . . , 0 . . , . 5.2 . . , , , . . , 3 C 0280 - 1997 . , . . . , - - - , . , . , 5.3 5.2 , . . , , . . . - - - , . . KS C 0200 , ( ) . . . KS C 0200 IEC 68(Environmental testing) . , , . ( ) . . .( ) . , , . . 4 C 0

5、280 - 1997 . . . , . 6 6.1 , . , . . ( . ) ( ) . . . , 6.2 6.2.1 1 . 6.2.2 2 y 3 , . . . - , - , , , , - , . 2 3 1 A . 6.2.3 A . . 5 C 0280 - 1997 6 C 0280 - 1997 A . A1. 1 , :2K4/2B2/2C3/2S2/2M3 :1 :1 / :1/ :10/ A2. 2 :3K3/3Z1/3B1/3C2/3S2/3M2 :10 :1/ :8 :1/24 A3. 3 :7K4/7Z2/7Z6/7Z10/7B2/7C3/7S3/7M3

6、 :5 (,) :2 / :0.5 /24 :1/ :2/ K , Z , B , C , S , M . - - 7 C 0280 - 1997 (IEC 721-3-0 - 1984) . IEC 721 , . . IEC 106 (IEC Guide l06: Guide for specifyin g environmental conditions for equipment performance rating, 19895 ) . 721-3-0 721-3 . 721-3 . IEC 721 . 721-1: 721-2: 2-1: 2-2: 2-3: 2-4: 2-5:,

7、2-6: 2-7: 2-8: 721-3: 3-0: 3-1: 3-2: 3-3: 3-4: 3-5: 3-6: 3-7: 3-8: IEC IEC TC75( ) 1993 721-3 . “ “ , . IEC 8 C 0280 - 1997 KS . 5.3 . . . IEC TC75 TC50( ) . - - 9 135513 7017 (02)60094567 (02)6009 4887 8 http:/ KS C 0280:1997 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Classification of environmental conditions Part 3:Classification of groups of environmenta1 parameters and their severities Introduction ICS 19.040 Korean Agency for Technology and Standards http:/www.kats.go.kr