<*n style="font-size: 14px"><*n style="font-family: 宋体; color: rgb（51,0,255）">电力电缆安装注意事项<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 1<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆与热力管道平行安装时应保持<*n style="font-family: tahoma; color: rgb（51,0,255）">2m<*n style="font-family: 宋体; color: rgb（51,0,255）">的距离、交叉时应保持<*n style="font-family: tahoma; color: rgb（51,0,255）">0.5m<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
2<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆与其它管道平行或交叉安装时要保持<*n style="font-family: tahoma; color: rgb（51,0,255）">0.5m<*n style="font-family: 宋体; color: rgb（51,0,255）">的距离<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 3<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆直埋安装时，<*n style="font-family: tahoma; color: rgb（51,0,255）">1-35kv<*n style="font-family: 宋体; color: rgb（51,0,255）">电缆直埋深度不小于<*n style="font-family: tahoma; color: rgb（51,0,255）">0.7m<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 4<*n style="font-family: 宋体; color: rgb（51,0,255）">）<*n style="font-family: tahoma; color: rgb（51,0,255）">10kv<*n style="font-family: 宋体; color: rgb（51,0,255）">及以下电缆平行安装时，相互净距不小于<*n style="font-family: tahoma; color: rgb（51,0,255）">0.1m<*n style="font-family: 宋体; color: rgb（51,0,255）">，<*n style="font-family: tahoma; color: rgb（51,0,255）">10-35kv<*n style="font-family: 宋体; color: rgb（51,0,255）">不小于<*n style="font-family: tahoma; color: rgb（51,0,255）">0.25m<*n style="font-family: tahoma; color: rgb（51,0,255）">;<*n style="font-family: 宋体; color: rgb（51,0,255）">交叉安装时距离不小于<*n style="font-family: tahoma; color: rgb（51,0,255）">0.5m<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 5<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆敷设温度不低于<*n style="font-family: tahoma; color: rgb（51,0,255）">0 0 C,<*n style="font-family: 宋体; color: rgb（51,0,255）">弯曲半径芯电缆＞＝<*n style="font-family: tahoma; color: rgb（51,0,255）">15<*n style="font-family: 宋体; color: rgb（51,0,255）">（<*n style="font-family: tahoma; color: rgb（51,0,255）">D+d<*n style="font-family: 宋体; color: rgb（51,0,255）">），单芯电缆＞＝<*n style="font-family: tahoma; color: rgb（51,0,255）">20<*n style="font-family: 宋体; color: rgb（51,0,255）">（<*n style="font-family: tahoma; color: rgb（51,0,255）">D+d<*n style="font-family: 宋体; color: rgb（51,0,255）">）（<*n style="font-family: tahoma; color: rgb（51,0,255）">D<*n style="font-family: 宋体; color: rgb（51,0,255）">为电缆外径，<*n style="font-family: tahoma; color: rgb（51,0,255）">d<*n style="font-family: 宋体; color: rgb（51,0,255）">为导体外径）<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 6<*n style="font-family: 宋体; color: rgb（51,0,255）">）<*n style="font-family: tahoma; color: rgb（51,0,255）">kv<*n style="font-family: 宋体; color: rgb（51,0,255）">及以上电缆接头<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [1]<*n style="font-family: 宋体; color: rgb（51,0,255）">安装电缆终端头时，必须剥除半导体电屏，操作时不得损伤绝缘，应避免刀痕及凹凸不平的情况，必要时用砂纸磨平屏蔽端部应平整，并要把石墨层（颗粒）清除干净。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [2]<*n style="font-family: 宋体; color: rgb（51,0,255）">塑料绝缘电缆端头铜带屏蔽和钢铠必须良好接地，对短线路也应遵循这项原则，避免三相不平衡运行钢铠端部产生感应电动势，甚至<*n style="font-family: tahoma; color: rgb（51,0,255）">“<*n style="font-family: 宋体; color: rgb（51,0,255）">打火<*n style="font-family: tahoma; color: rgb（51,0,255）">”<*n style="font-family: 宋体; color: rgb（51,0,255）">及燃烧护套等事故。接地引出线要采用镀锡编织铜线，和电缆铜带连接时应用铬铁锡焊，不宜用喷类封焊，以免烧绝缘。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [3]<*n style="font-family: 宋体; color: rgb（51,0,255）">三相铜带屏蔽应分别与地线相连，注意屏蔽接地线和钢铠接地线应分别引出，相互绝缘，焊接的线的位置应尽量靠下。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
7<*n style="font-family: 宋体; color: rgb（51,0,255）">）对电缆端头和中间接头的基本要求：<*n style="font-family: tahoma; color: rgb（51,0,255）">a.<*n style="font-family: 宋体; color: rgb（51,0,255）">导体连接良好<*n style="font-family: tahoma; color: rgb（51,0,255）">; b.<*n style="font-family: 宋体; color: rgb（51,0,255）">绝缘可靠，推荐采用辐照交联热收缩型胶绝缘材料<*n style="font-family: tahoma; color: rgb（51,0,255）">; c.<*n style="font-family: 宋体; color: rgb（51,0,255）">密封良好<*n style="font-family: tahoma; color: rgb（51,0,255）">; d.<*n style="font-family: 宋体; color: rgb（51,0,255）">跔的机械强度，能适应各种运行条件。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 8<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆端头必须****水及其它腐蚀性材料的侵蚀，以防因水树引起绝缘　层老化而导致击穿。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 9<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆的装卸必须使用吊车或叉车，禁止平运、平放，大型电缆安装时须使用放缆车，以免电缆受外力操作或因人工拖动而擦伤。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　<*n style="font-family: tahoma; color: rgb（51,0,255）"> 10<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆如因故不能及时敷设时，应将其放在干燥地方贮存，****日光曝晒端头进水等。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> <*n style="font-family: 宋体; color: rgb（51,0,255）">注意：电线电缆安装应由熟悉电线电缆性能的安装人员或专职技术人员担任，如仍有不清事项，请向相关技术部门或河南国网电缆有限公司技术咨询。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 

2.<*n style="font-family: 宋体; color: rgb（51,0,255）">　电缆的使用特性及运行敷设条件<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
1<*n style="font-family: 宋体; color: rgb（51,0,255）">）额定电压<*n style="font-family: tahoma; color: rgb（51,0,255）">0.6/1kv<*n style="font-family: 宋体; color: rgb（51,0,255）">聚*绝缘电力电缆<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [1]<*n style="font-family: 宋体; color: rgb（51,0,255）">电缆导体的长期允许工作温度：＜＝<*n style="font-family: tahoma; color: rgb（51,0,255）">70 0 C 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [2]<*n style="font-family: 宋体; color: rgb（51,0,255）">短路时（****长持续时间不超过<*n style="font-family: tahoma; color: rgb（51,0,255）">5s<*n style="font-family: 宋体; color: rgb（51,0,255）">）电缆的****高工作温度：<*n style="font-family: tahoma; color: rgb（51,0,255）">160 0 C 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [3]<*n style="font-family: 宋体; color: rgb（51,0,255）">电缆敷设后经受直流电压<*n style="font-family: tahoma; color: rgb（51,0,255）">3.5kv/15min <*n style="font-family: 宋体; color: rgb（51,0,255）">不击穿。<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> [4]<*n style="font-family: 宋体; color: rgb（51,0,255）">在空气中敷设<*n style="font-family: tahoma; color: rgb（51,0,255）"> 
a.<*n style="font-family: 宋体; color: rgb（51,0,255）">单芯电缆平行敷设时的中心距离：<*n style="font-family: tahoma; color: rgb（51,0,255）">185min 2 <*n style="font-family: 宋体; color: rgb（51,0,255）">及以下为　直径的<*n style="font-family: tahoma; color: rgb（51,0,255）">2<*n style="font-family: 宋体; color: rgb（51,0,255）">倍：<*n style="font-family: tahoma; color: rgb（51,0,255）">240min 2 <*n style="font-family: 宋体; color: rgb（51,0,255）">及以上为<*n style="font-family: tahoma; color: rgb（51,0,255）">90mm<*n style="font-family: tahoma; color: rgb（51,0,255）">; 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> b.<*n style="font-family: 宋体; color: rgb（51,0,255）">周围环境温度：<*n style="font-family: tahoma; color: rgb（51,0,255）">30 0 C; 
<*n style="font-family: 宋体; color: rgb（51,0,255）">　　<*n style="font-family: tahoma; color: rgb（51,0,255）"> c.<*n style="font-family: 宋体; color: rgb（51,0,255）">不同环境温度****流量的校正系数
洛阳电缆****河南国网电缆。