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首页> 外文会议>International Conference on Intelligent Energy and Power Systems >Influence of Direct Lightning Strikes and Lightning Strikes Near Power Lines with Protected and Non-Insulated Wires
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Influence of Direct Lightning Strikes and Lightning Strikes Near Power Lines with Protected and Non-Insulated Wires

机译：受保护的和非绝缘的电线的直接雷击和雷击对电源线的影响

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Many years of experience in the construction and operation of 6 - 35 kV overhead power lines with bare wires showed insufficient reliability of such lines and their increased danger. One of the main causes of accidents and violations are thunderous overcharging on overhead lines, causing impulse overlap and destruction of insulators and leading to arc closures, with collateral damage to equipment, line outages. Emergency outages of 6 -35 kV overhead lines due to lightning overvoltages account for up to 40% of the total number of their trips. Due to low impulse strength, insulation of distribution networks is subject to overlapping both from over voltages in direct lightning discharges and from induced overvoltages in the case of lightning near the line. The latter are the main cause of thunderstorm outages and damage to the equipment of 6 -35 kV lines, amounting to 90% in some cases, and when the overhead lines highway passes through the forest and up to 100% of their total number. Thus, reliability of power supply to consumers largely depends on the effectiveness of lightning protection measures.
机译：在具有裸线的6-35 kV架空电力线的建设和操作方面的多年经验表明，此类电线的可靠性不足，危险性也随之增加。造成事故和违规的主要原因之一是架空线路上雷鸣般的过度充电，导致脉冲重叠和绝缘子损坏，并导致电弧闭合，从而间接损坏设备和线路中断。雷电过电压导致的6 -35 kV架空线路紧急中断占跳闸总数的40％。由于较低的脉冲强度，配电网的绝缘层会受到直接雷电放电中的过电压和线路附近雷电引起的感应过电压的重叠。后者是雷暴中断和6 -35 kV线路设备损坏的主要原因，在某些情况下，占架空线路的90％，并且当架空线路穿过森林时，其总数高达100％。因此，向消费者供电的可靠性在很大程度上取决于防雷措施的有效性。

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