KS C 6111-6-2009 Measurement method for the DC critical current of superconducting power cables《超导电力电缆的直流临界电流测量方法》.pdf

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2、4 6 .4 6.1 4 6.2 5 6.3 ( A.6 ).5 7 .5 7.1 5 7.2 5 7.3 .5 7.4 .6 8 6 8.1 .6 8.2 .6 8.3 .6 9 7 9.1 .7 9.2 8 9.3 n 9 10 .9 10.1 .9 10.2 I c .9 10.3 .9 A() 1. 9. 10 B() 18 C() 22 KS C 61116:2009 .23 KS C 61116:2009 ii 1987 1990 , . , . 3 5 1 2 , . , , . , , , . . . , , , (uncertainty) . KS C 61116:2009

3、Measurement method for the DC critical current of superconducting power cables 1 . 10 000 A , 7 n . . , . 2 . . ( ) . KS C IEC 60050815, 815： KS C IEC 617881, 1： Cu/Nb-Ti KS C IEC 617883, Bi-2212 Bi-2223 KS C IEC 60949, KS C IEC 601412, OF , 2：275 kV GUM(Guide to the Expression of Uncertainty in Mea

4、surement), 3 KS C IEC 60050815 . . 3.1 (critical current) I c (E c ) (V c ) . KS C 61116:2009 2 3.2 (superconducting power cables) ( A.1 ) 1 2 3.2.1 (former) (bypass) . KS C IEC 60949 . (bending) . 3.2.2 (superconducting conducting layer) (線) . (相) . 3.2.3 (insulation layer) . 3.2.4 (superconducting

5、 shielding layer) (靜電) , . a) b) c) 3.2.5 (stabilizing layer) KS C 61116:2009 3 3.3 (current leads) 1 , , , . 2 . 3.4 n (n-value) V I n n , n . 4 (V) . 0 I-V . , 0 Tesla, 3 % . (twist pitch) 2 . . . . . , . . 5 5.1 . , KS C 61116:2009 4 . ( A.2 ). , 200 mm 3 . 5.2 , (soldering) . . , . . 2 . . . 100

6、 mm ( A.3 ). 5.3 . , . . 6 6.1 (soldering) . . (solder) , ( ) . , , KS C 61116:2009 5 . . . ( A.4, A.5 ). 6.2 . . 6.3 ( A.6 ) . ( ) ( ). ( ) . . . 7 7.1 4. , ( A.7 ). KS C IEC 60949 . 7.2 . . 2 . . . 7.3 - . 0 KS C 61116:2009 6 . (1), (2) . sec) / A ( 10 (1) (sec) 100 (2) (1), (2) . 0.1 0.2 . - 0 ()

7、 () . , . 0.9 /100 . 0.5 % . 7.4 . KS C IEC 601412 , , . 8 8.1 I-V . 0.5 % . , , I-V . 0.5 % , 0.5 % . 8.2 . 0.1 K . . 8.3 (ISO, IEC, BIPM ) GUM(Guide to the Expression of Uncertainty in Measurement) ( B ). KS C 61116:2009 7 9 9.1 . 70 % ( 1 ). I-V I-V ( 2, 3 ). (3) . dt dI L R I V V cl s ) ( (3) V

8、： V s： R cl： L ： I ： 1 I-V ( ) V s 0 KS C 61116:2009 8 2 I-V 3 I-V 9.2 I c E c ( 4 ). 1 V/cm . (4) I-V I c . c c E D V (4) V c： ( V) D ： (cm) E c： ( V/cm) I c . V s I(R cl )L(dI/dt) 0 V s l(R cl ) 0 KS C 61116:2009 9 4 9.3 n n I c log V log I . n . 10 10.1 . a) b) c) d) ( ) 10.2 I c I c n . 10.3 . a

9、) ( ) b) I c c) I c d) e) 0 I c V c D E cVD E cV cKS C 61116:2009 10 A () 1. 9. A.1 . A.2 . , . . . , 1 % . . 2 . A.3 - I-V . . . V c - . 0.1 - . , , , . I-V . I-V . V c . A.4 I-V (A.1) . n I I V V 0 0 (A.1) V ： ( V) V 0： ( V) KS C 61116:2009 11 I ： (A) I 0： (A) n ：I-V I c E c 1 V/cm , log V log I n . 1 V/cm 0.1 V/cm. n . A.5 A.5.1 ( A.4 ). 2 . . . . . , . . . . . . . . . . . . . . A.5.2