YJOV 8.7/15kV 240 mm² 同轴接地电缆，厂有现货

价格：面议

广州华粤电缆有限公司

联系人：杨永华

电话：+8613044224548

地址：广州市天河区燕岭路89号499室E87号

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关 键 词：10kvYJOV电缆,接地接地YJOV电缆

行 业：能源 输电设备/材料 电缆 

发布时间：2021-12-16

电缆安装时的轴向允许牵引力T(不考虑转弯处的径向侧压力)

Maximum allowable axial traction for cable installation, T(radial side pressure at bend not being considered导体:TK×导体截面(

Conductor: T=K x Conductor section (kg)

式中系数K值为,铜导体K=7kg/m2,铝导体K=4kg/m

Where, the coefficient K= 7kg/mm for copper conductor and 4kg/mm for aluminum conductor●电缆弯曲时的允许侧压力 P Maximum allowable side pressure when cable is bent. PP=T/R≤500(kg/m),式中T为轴向牵引力,R为弯曲半径

P=T/R<500(kg/m), where T is axial traction, and R is bending radius电缆额定电压的表示方法 Expression method for rated voltage of cable电缆的额定电压用UU(U)表示,均为有效值,单位为kV.如;Uuu(U)=127220(252)The rated voltage of cable is expressed with Uo/U(U), and it is an effective value wirh a unit of kV For example. UA/U(U-)a127/220(252)Uo- The rated power frequency voltage between the conductor and the shield or the metal armor, used for cable designU—电缆设计用的导体与屏蔽或金属套之间的额定工频电压