1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60268 7 7: KS C IEC 60268 7:2011 2011 12 30 http:/www.kats.go.krKS C IEC 60268 7:2011 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2003 2 14 :2011 12 30 2011-0702 : : ( 02-509-7262) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60268 7:2011 i . ii 1 1
2、2 1 3 .2 4 , , 4 5 .6 6 .6 7 7 7.1 7 7.2 .7 7.3 .8 7.4 8 7.5 9 7.6 .10 8 .10 8.1 10 8.2 10 8.3 11 8.4 14 8.5 ( ).15 8.6 16 8.7 20 8.8 ( )22 8.9 22 8.10 23 8.11 23 8.12 .24 8.13 ( ).24 8.14 , .24 9 .24 A( ) .26 B( ) 35 C( ) .36 D( ) .37 E( ) 38 39 KS C IEC 60268 7:2011 ii 2010 3 IEC 60268 7, Sound sy
3、stem equipment Part 7: Headphones and earphones , . KS C IEC 60268 7:2011 7: Sound system equipment Part 7: Headphones and earphones 1 , . , . . a) KS C IEC 60065 b) KS C IEC 60268 4 c) KS C IEC 60118 0 d) e) . , . 2 . . ( ) . KS A ISO 4869 1, 1: KS C IEC 60050 801: 2011, 801: KS C IEC 60068 1, 1: K
4、S C IEC 60086 1, KS C IEC 60268 1, 1: KS C IEC 60268 2, 2: KS C IEC 60268 12, 12: KS C IEC 60711, KS C IEC 60959, KS C IEC 61672 1, ( ) 1: KS C IEC 60268 7:2011 2 KS I ISO 3741, KS I ISO 4869 3, 3: KS M ISO 7619 1, 1: ( ) IEC 60038, IEC standard voltages IEC Guide 106, Guide for specifying environme
5、ntal conditions for equipment performance rating IEC 60263, Scales and sizes for plotting frequency characteristics and polar diagrams IEC 60268 11, Sound system equipment Part 11: Applications of connectors for the interconnection of sound system components 3 , KS C IEC 60050 801(IEV) . 3.1 3.15 .
6、3.1 IEV 801 27 18 3.2 ( , ) 3.3 3.4 IEC . 3.5 IEV 801 27 22, 3.6 KS C IEC 60268 7:2011 3 KS C IEC 60050 801 , . 3.7 , IEV 801 27 23, 3.8 3.9 IEV 801 27 24 3.10 KS C IEC 60914 3.11 . . 3.12 3.13 3.14 3.15 3.16 KS C IEC 60268 1 KS C IEC 60268 7:2011 4 “ ” . 4 , , . 60268 7 KS C IEC XXXX NNRN N 60268 7
7、 KS C IEC : X( ) : D : ( ) E : ( ) F : ( ) M : ( ) P : ( ) S : ( ) X( ) : ( 1 ) C : E : H : I : M : S : T : X( ): L : S : X( ) : C : (3.14 ) O : (3.15 ) 3.12 3.15 , 2 . NNRN( ): “ ” ( 8 : “08R0”, 32 : “32R0”, 600 : “06R2”) N( ): . KS C IEC 60268 7:2011 5 ( ) ( ) . ( ) . 1 / KS C IEC 60268 7:2011 6 (
8、 .) ( .) ( ) ( ) 1 2 . 2 : , 5 , KS C IEC 60268 1 , KS C IEC 60268 2 . , “ ”, “ ” . , “ ” “ ” . 6 . (IEC 60268 11 ) ( ) ( ) ( ) (4. ) , . “ , . , , . , , .” KS C IEC 60268 7:2011 7 , . / ( ) 7 7.1 “ ” “ ” KS C IEC 60268 2 . ( , 8.4 ) ( 8.4 ) ( ) ( ) ( ) ( ) ( , , ) , . . , KS C IEC 60268 1 , IEC 600
9、68 IEC Guide 106 . . , , IEC 61938 , 120 . 120 , . 7.2 . a) . b) . 94 dB( 20 Pa) . KS C IEC 60268 7:2011 8 , 500 Hz . . . , 1 mW . , , , . , , , ( ) . ( ) . c) , . , . “ ” . . . d) , . 7.3 . , , . IEC 60318 1, IEC 60318 2, IEC 60318 3, IEC 60318 5, KS C IEC 60711, ITU-T Recommendation P.57 4.3 KS C
10、IEC 60959 HATS . HATS , KS C IEC 60959 . ITU P.58 . . KS M ISO 7619 1(2011) A . , , , , . 7.4 7.2 KS C IEC 60268 1 . . KS C IEC 61672 1 , KS C IEC 60959 3 . KS C IEC 60268 7:2011 9 . KS C IEC 61672 1 / KS C IEC 60969 1/3- (power summation) . 3 7.5 7.5.1 . , , . 7.5.2 . a) , . , . b) . , . C . 7.5.3
11、. a) , . , KS C IEC 60268 7:2011 10 . b) , KS I ISO 3741 , . , . D . , . 7.6 (7.5.2) (7.5.3), . B , 4 mm , . E . 8 8.1 , . ( ) , (IEC 60038 ), / (KS C IEC 60086 1 ). (7.1 ). . . 8.2 8.2.1 ( : 7.1 ) a) b) 80 % . 0 20 kHz , . 8.2.2 / 8.2.2.1 KS C IEC 60268 7:2011 11 8.2.2.2 . a) . b) , . c) 20 Hz 20 k
12、Hz . d) . . 8.2.3 ( ) 1 . 2 7.1 8.3 8.3.1 ( ) 1 . , , ( ) 2 IEC 61938 , 5 V . 6. 7.1 . 3 . 1015 dB (8.3.3 ) . 8.3.4.2 2 . 8.3.2 8.3.2.1 . a) ( ) , (KS C IEC 60268 1 ) , 120 60 10 , . b) ( ) , (KS C IEC 60268 1 ) , 100 , . 8.3.2.2 KS C IEC 60268 7:2011 12 1 , . , . . a) . . , b) KS C IEC 60268 1 , 1.8 2.2 . 10 % , 2 . c) , , 120 60 10 . 4 . d) , , 100 . 24 . e) , , . 2 , , . 8.3.3 8.3.3.1 500 Hz 94 dB( 20 Pa) . 500 Hz , . 8.3.3.2 . a) . b) 500 Hz KS C IEC 60268 7:2011 13 94 dB( 20 Pa) . c) . 8.3.4 8.3.4.1 94 dB ( 20 Pa) . KS C IEC 60268 1 8.3.4.2 . a) 7.4 . b) KS C IEC 60268 1