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1供电线路架设不规范低压架空线过低,对地高度或与建筑物的安全距离不符合规程要求;低压电杆拉线固定部位不合理,工艺不良,又无隔离绝缘子;用破股线、废铝线或铁丝作电线;接头不合格;用绝缘层破损或老化的电线作进户线或电器引线;电话线、广播线、电视线与电力线安装跨越、交叉或间隔距离不符合要求造成强弱电混乱、交叉或搭连;低压架空线路下面的树木不及时修剪。
1 power supply lines set up an irregular low-voltage overhead lines is too low, the height of the ground or with the building’s safety distance does not meet the requirements of the program; low-voltage electric pole cable fixed parts unreasonable, poor process, without isolation insulators; Aluminum wire or wire for the wire; joint failure; insulation with broken or aging wires for household lines or electrical leads; telephone lines, radio, television and power lines across the installation, cross or distance does not meet the requirements of the strength of the distance Electric chaos, cross or link; under the overhead lines under the trees do not trim in time.