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序号芯数×标称截面㎜2绝缘厚度规定值㎜平均外经上限㎜20°C时导体电阻最大值Ω/km70°C时导体电阻最小值MΩ/km11.50.73.312.10.01121.50.73.412.10.00932.50.83.97.410.00742.50.84.27.410.00654.00.84.44.610.005664.00.84.84.610.004676.00.84.93.080.004486.00.85.43.080.0038910.01.06.41.830.00371016.01.06.81.150.00321125.01.280.7270.00291235.01.29.80.5240.00321350.01.4110.3870.00321470.01.4130.2680.00321595.01.6150.1930.003216120.01.6170.1530.002917150.01.8190.1240.002918185.02.0210.09910.002919240.02.023.50.07540.0028
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