详细计算低压电缆填充材料的理论用量.pptx

详细计算低压电缆填充材料的理论用量

详细计算低压电缆填充材料的理论用量（导体：非紧压圆形或紧压圆形,总结出经验公式）YJV、YJV22低压电缆填充材料理论重量详细计算过程序电缆规格导体直径绝缘厚度绝缘外径d间隙面积mm2即填充面积S=1.58d2填充材料密度ρ=g/cm3成缆绞入系数λ填充理论重量W=S×ρ×L（L=1000m）行业工艺定额kg/km两者比率W1/W212×2.51.760.73.1615.780.61.029.477.1132.5%22×42.230.73.6320.820.61.0212.4914.387.5%32×62.750.74.1527.210.61.0216.3322.074.1%42×103.990.75.3945.900.61.0127.5443.663.1%52×165.070.76.4766.140.61.0139.6843.691.0%62×256.270.98.07102.900.61.0161.7465.494.3%72×357.470.99.27135.770.61.0181.4687.393.4%82×508.351.010.35169.250.61.003101.55108.393.8%92×7010.01.112.2235.170.61.003141.10140.4100.5%102×9511.61.113.8300.900.61.003180.54210.685.7%112×12013.21.215.6384.510.61.003230.71210.6109.5%122×15014.61.417.4478.360.61.003287.02280.8102.2%132×18516.41.619.6606.970.61.003364.18351.1103.7%142×24018.61.722.0764.720.61.003458.83421.3108.9%152×30020.81.824.4940.670.61.003564.40421.3133.9%◆2等芯圆形：中心填充面积0、侧面填充面积2×0.79d2故总的填充面积S=1.58d2PP填充绳的材料密度取值ρ=0.6g/cm3◆以2*2.5为例计算如下：W=15.78mm2×0.6g/cm3×1000m=15.78×0.6=9.47kg/km(注意计量单位的换算)

YJV、YJV22低压电缆填充材料理论重量详细计算过程序电缆规格导体直径绝缘厚度绝缘外径d间隙面积mm2即填充面积S=1.3d2填充材料密度ρ=g/cm3成缆绞入系数λ填充理论重量W=S×ρ×L（L=1000m）行业工艺定额kg/km两者比率W1/W213×2.51.760.73.1612.980.61.027.7914.323×42.230.73.6317.130.61.0210.2814.333×62.750.74.1522.390.61.0213.4314.343×103.990.75.3937.770.61.0122.6632.753×165.070.76.4754.420.61.0132.6532.763×256.270.98.0784.660.61.0150.8065.473×357.470.99.27111.710.61.0167.0365.483×508.351.010.35139.260.61.00383.5686.793×7010.01.112.2193.490.61.003116.10140.4103×9511.61.113.8247.570.61.003148.54175.5113×12013.21.215.6316.370.61.003189.82210.6123×15014.61.417.4393.590.61.003236.15245.7133×18516.41.619.6499.410.61.003299.64280.8143×24018.61.722.0629.200.61.003377.52315.9153×30020.81.824.4773.970.61.003464.38421.3◆3等芯圆形：中心填充面积0.04d2、侧面填充面积3×0.42d2故总的填充面积S=3×0.42＋0.04=1.3d2PP填充绳密度取值ρ=0.6g/cm3◆以3*2.5为例计算如下：W=12.98mm2×0.6g/cm3×1000m=7.79kg/km(注意计量单位的换算)

YJV、YJV22低压电缆填充材料理论重量详细计算过程序电缆规格导体直径绝缘厚度绝缘外径d间隙面积mm2即填充面积S=1.46d2填充材料密度ρ=g/cm3成缆绞入系数λ填充理论重量