各对绞屏蔽之间以及绞屏蔽与总屏蔽之间应不断路。
（6）计算机电缆结构尺寸及重量：① DJYVP DJYVP2 DJYVP3型结构尺寸标称截面（mm2）线径结构根数/线径（mm）*大外径（mm）近似重量（kg/km）DJYVPDJYVP2DJYVP3DJYVPDJYVP2DJYVP31×2×0.51×2×0.751×2×1.01×2×1.5 7.68.28.89.5 7.37.88.59.29.67241×2×2.52×2×0.52×2×0.752×2×.5.2.312.513.214.681098410612962×2×1.52×2×2.53×2×0.53×2×0.753×2×8.0.7.8.724427012431053×2×1.53×2×2.54×2×0.54×2×0.750.8.7.2851992424×2×1.04×2×1.54×2×2.55×2×0.51/1/.0.49310462082335×2×0.755×2×1.05×2×1.55×2×2.51/0.971/1/1.7814.0.5.0728838456421225034496277×2×0.757×2×0.757×2×1.07×2×1/13.8.3.8233334482×2×2.58×2×0.58×2×0.758×2×1.01/1.781.1322.7.2.08277367455×2×1.58×2×2.510×2×0.510×2×0.750.80.0.820.222.520770343053810×2×1.010×2×1.510×2×2.512×2×0.51/1/24.728.8.3.221.05797521810003606408×2×0.7512×2×1.012×2×1.512×2×2.51/0.971/1/1.7820.023.525.430.720.223.026.030.022.825.827.632.85456528506510136714×2×0.514×2×0.7514×2×1.014×2×1.519.5202723.726.829.04756227368314×2×2.516×2×0.516×2×0.7516×2×1.01/1.781.1332.52020.522.525.535.023.025.028.423381916×2×1.516×2×2.519×2×0.519×2×0.750.8022.423.728.034.022.023.23719010102099×2×1.019×2×1.519×2×2.524×2×0.51/1/29.636.025.526.529.2.038.527.7854863105624×2×0.7524×2×1.024×2×1.524×2×2.51/0.971/1/1.7828.232.535.242.527.832.034.742.030.734.837.645.011005940112555② DJYPVP DJYP2VP2 DJYP3VP3型结构尺寸标称截面（mm2）线径结构根数/线径（mm）*大外径（mm）近似重量（kg/km）DJYPVPDJYP2VP2DJYP3VP3DJYPVPDJYP2VP2DJYP3VP31×2×0.51×2×0.751×2×1.01×2×1.58.08.69.09.87.48.28.69.4.875889813961081291×2×2.52×2×0.52×2×0.752×2×1.01/1.781.1310.8.4.817.318.019.40142×2×1.52×2×2.53×2×0.53×2×0.750.80.8.8292463053×2×1.03×2×1.53×2×2.54×2×0.51/1/23.722.825.56722328543623114×2×0.754×2×1.04×2×1.54×2×2.51/0.971/1/1.7819.62420.222.324.720.822.425.675×2×0.55×2×0.755×2×1.05×2×1.520.8.8.622.624.627.06×2×2.57×2×0.57×2×0.757×2×1.01/1.781.1328.822.623.625.827.0.2242983894568×2×1.57×2×2.5.83133.85×2×0.58×2×0.758×2×1.08×2×1.524.025.527.730.422.023.525.928.925.0362075326995×2×2.510×2×0.510×2×0.7510×2×0.228.430.733.032.326.428.43734.0974555856894310×2×1.510×2×2.512×2×0.512×2×0.750.8029.430.834.238.426.829.2.8189907128652274190912×2×1.012×2×1.512×2×2.514×2×0.51/1/38.042.0.4.331.51042784103814×2×0.7514×2×1.014×2×1.514×2×2.51/0.971/1/1.7831.835.438.6.34544.91021125789411226×2×0.516×2×0.7516×2×1.016×2×1.531.733.437.240.030.23234.938.641.59081673102012671×2×2.519×2×0.519×2×0.7519×2×1.01/1.781.1346.333.335.239.244.63734.836.640.62442105157731004114651684③ DJYPVRP DJYP2VRP2 DJYP3VRP3型结构尺寸标称截面（mm2）线径结构根数/线径（mm）*大外径（mm）近似重量（kg/km）DJYPVRPDJYP2VRP2DJYP3VRP3DJYPVRPDJYP2VRP2DJYP3VRP31×2×0.51×2×0.751×2×1.01×2×.2032/0.2030/0.258.28.89.5.8.4759098031141421×2×2.52×2×0.52×2×0.752×2×.2024/0.2032/0.20.0.0.61182×2×1.52×2×2.53×2×0.53×2×0.7530/0.2549/0.2520.623.0.0.5212653373×2×1.03×2×1.53×2×2.54×2×0.532/0.2030/0.2549/0.25824.9.5.320.22329043753264×2×0.754×2×1.04×2×1.54×2×2.524/0.2032/0.2030/0.2549/0.2520.22620.222.925.722.023.326.028.5334373552245×2×0.55×2×0.755×2×1.05×2×.2032/0.2030/0.2520.82420.422.424.822.423.325.327.9323230035707185×2×2.57×2×0.57×2×0.757×2×.2024/0.2032/0.2029.822.623.626.628.32324.225.227.882242994004569×2×1.57×2×2.530/0.2549/0.2529.333.429.333.430.534.67971240使用特性和运行敷设条件：（1）产品额定电压（U0/U）：300/500v;（2）长期工作温度为70℃；（3）敷设时环境温度不低于：固定敷设温度-40℃，非固定敷设-15℃；（4）*小弯曲半径：无铠装层应不小于电缆外径的6倍，带铠装层的电缆应不小于电缆外径的12倍。
.产品简介：本产品适用于额定电压500V及以下对于防干扰性要求较高的电子计算机和自动化设备连接用电缆。
电缆地线芯绝缘采用具有抗氧老化性能的K型B类低密度聚乙烯。
聚乙烯的绝缘电阻高，耐电压好，介电系数和介质损耗受温度和频率的影响小，能满足传输性能的要求，还能确保电缆的使用寿命。
为了减少回路间的相互串扰和外部干扰，电缆采用了屏蔽结构，电缆的屏蔽要求是，根据不同使用场合分别采用：对绞组合屏蔽，对绞组成电缆的总屏蔽、对绞组合屏蔽后总屏蔽等方法。
屏蔽材料有铜丝、铜带、铝箔/塑料复合带三种。
屏蔽对与屏蔽对具有较好的绝缘性能，电缆在使用中若屏蔽对与屏蔽对之间出现电位差时，不会影响信号的传输效果。