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2、ical resistivity and conductivity of non-ferrous metals 1 , (strip), , , . . 2 . . ( ) . KS M 0602, 3 . 3.1 20 , cm . 3.2 20 , . . 20 , , . 3.2.1 1 mm 2 , 1 m 1/58 0.017 241 3.2.2 1 cm 3 8.89 g KS D 0240:2010 2 3.2.3 1 0.000 017 3.2.4 1 0.003 93 1 , (IEC) . 2 1.7241 cm. 4 , , , , . 4.1 350 mm 10 . .
3、 4.1.1 3 mm , 1.2 % . 4.1.2 . , . 4.2 0.15 % . 4.3 0.05 % . 4.4 KS M 0602 3 . 4.5 KS D 0240:2010 3 0.05 % . 4.6 4.6.1 (double bridge) (potentiometer) . , 1 (wheatstone bridge) . 4.6.2 300 mm , 0.05 % . 4.6.3 1525 . 4.6.4 . 4.6.5 0.2 % . 4.7 . 100 ) 20 ( 1 20 t 1 t R l a ( ) 100 ) 20 ( 1 20 t 2 1 t S
4、 R l l m ( ) 100 ) 20 ( 1 20 1 t t l a R A ( ) 100 ) 20 ( 1 20 2 1 t t l l m R C ( ) : ( cm) :(%) R t:t ( ) m : (g) l 1: (m) l 2: (m) t : () : (mm 2 ) S : A, 20 C . A :0.017 241 20 :20 ( 1 ). , . KS D 0240:2010 4 C :0.153 28( , 8.89 ) 0.046 55( , 2.70 ) , S C . CAS 5 (metergram) 20 1 . 6 0.4 %. 1 %
5、(20) 20 K 20 55 56 57 58 59 60 61 62 0.084 64 0.083 13 0.081 67 0.080 26 0.078 90 0.077 58 0.076 31 0.075 08 0.003 63 0.003 70 0.003 77 0.003 84 0.003 90 0.003 96 0.004 03 0.004 09 275.5 270.3 265.3 260.4 256.4 252.5 248.1 244.5 93 94 95 96 97 97.5 98 99 100 0.164 81 0.163 06 0.161 34 0.159 66 0.158
6、 02 0.157 21 0.156 40 0.154 82 0.153 28 0.003 65 0.003 69 0.003 73 0.003 77 0.003 81 0.003 83 0.003 85 0.003 89 0.003 93 273.9 271.0 268.1 265.3 262.5 261.1 259.7 257.1 254.5 . R t R 20 1 20 (t20) 20 20 t 20 1 K t R R R t:t R 20:20 20:20 ( 1 ) K 20:1/ 20 ( 1 ) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS D 0240 :2010 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Measuring methods for electrical resistivity and conductivity of non-ferrous metals ICS 77.120.01 Korean Agency for Technology and Standards http:/www.kats.go.kr