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表9 227IEC02（RV）型450/750V
一般用途单芯软导体无护套电缆 |
| |
导体标
称截面
mm2 |
导电线芯 |
绝缘厚度规定值
mm |
平均外径上限
mm |
20℃时导体电阻最大值
Ω/km |
70℃时绝缘电阻最小值
MΩ·km |
执行标准 |
| 根数/单线标称直径mm |
铜芯 |
镀锡铜芯 |
| 1.5 |
48/0.20 |
0.7 |
3.5 |
13.30 |
13.70 |
0.010 |
GB5023.3-1997 |
| 2.5 |
77/0.20 |
0.8 |
4.2 |
7.98 |
8.21 |
0.009 |
GB5023.3-1997 |
| 4 |
77/0.26 |
0.8 |
4.8 |
4.95 |
5.09 |
0.007 |
GB5023.3-1997 |
| 6 |
84/0.30 |
0.8 |
6.3 |
3.30 |
3.39 |
0.006 |
GB5023.3-1997 |
| 10 |
84/0.40 |
1.0 |
7.6 |
1.91 |
1.95 |
0.0056 |
GB5023.3-1997 |
| 16 |
126/0.40 |
1.0 |
8.8 |
1.21 |
1.24 |
0.0046 |
GB5023.3-1997 |
| 25 |
196/0.40 |
1.2 |
11.0 |
0.780 |
0.795 |
0.0044 |
GB5023.3-1997 |
| 35 |
276/0.40 |
1.2 |
12.5 |
0.554 |
0.565 |
0.0038 |
GB5023.3-1997 |
| 50 |
396/0.40 |
1.4 |
14.5 |
0.386 |
0.393 |
0.0037 |
GB5023.3-1997 |
| 70 |
360/0.50 |
1.4 |
17.0 |
0.272 |
0.277 |
0.0032 |
GB5023.3-1997 |
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