序號 | 芯數(shù)×標(biāo)稱截面㎜2 | 導(dǎo)體結(jié)構(gòu)NO./mm | 絕緣厚度規(guī)定值㎜ | 平均外經(jīng)上限㎜ | 20°C時導(dǎo)體電阻值 Ω/km | 70°C時導(dǎo)體電阻最小值 MΩ/km |
1 | 1.5 | 30/0.25 | 0.7 | 3.5 | 13.3 | 0.01 |
2 | 2.5 | 49/0.25 | 0.8 | 4.2 | 7.98 | 0.009 |
3 | 4 | 56/0.30 | 0.8 | 4.8 | 4.95 | 0.007 |
4 | 6 | 84/0.30 | 0.8 | 6.3 | 3.3 | 0.006 |
5 | 10 | 80/0.40 | 1 | 7.6 | 1.91 | 0.0058 |
6 | 16 | 128/0.40 | 1 | 8.8 | 1.21 | 0.0046 |
7 | 25 | 199/0.40 | 1.2 | 11 | 0.78 | 0.0044 |