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Efficacy of a mitigation method to reduce raptor electrocution at an electricity distribution line in Mongolia

机译：缓解方法在蒙古的配电线路上减少猛禽电死的功效

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We conducted a trial of a mitigation technique aimed at reducing avian electrocution rates at a 15kV electricity distribution line in the Mongolian steppe. Electrocution resulted from birds contacting live conductor cables either when perched at the top of the grounded steel-reinforced concrete pole or when perched on the steel crossarm. Mitigation focused on line poles and involved creating a barrier between the live conductors and perch sites at randomly selected poles. This involved attaching the pin insulator at the top of the pole with a new mount, so that it was repositioned centrally to discourage birds from perching on top of the pole, while additional unconnected pin insulators were affixed adjacent to those supporting the conductor cables on the crossarm to provide a barrier to birds touching the live cables. Electrocution rates were significantly lower at mitigated poles compared to control poles, with an average reduction of 85%. This mitigation technique is relatively inexpensive to implement (approximately US$12/pole for materials), with no additional maintenance requirement and a life expectancy similar to that of the base pole design. While not eliminating electrocution risk, this mitigation technique may be useful in circumstances where the cost of implementation and sustained maintenance largely determines whether or not any form of mitigation is undertaken.
机译：我们进行了一项缓解技术的试验，旨在降低蒙古草原15kV配电线路的禽电死率。鸟栖息在接地的钢筋混凝土杆的顶部或栖息在钢制横臂上时，由于鸟类接触带电的导体电缆而导致触电死亡。缓解措施的重点是电线杆，并在带电导体和随机选择的电线杆上的栖息点之间建立屏障。这涉及用新的支架将针形绝缘子固定在杆的顶部，以便将其重新放置在中心位置，以防止鸟儿栖息在针形顶部，同时在与支撑导线上的导体相邻的位置附近附加其他未连接的针形绝缘子。横臂为鸟类接触带电电缆提供了屏障。与控制极相比，缓和极的电死率要低得多，平均降低85％。这种缓解技术的实施成本相对较低（材料每极约12美元），并且没有额外的维护要求，并且使用寿命与基极设计相似。在不消除触电危险的同时，这种缓解技术在实施和持续维护成本很大程度上决定是否采取任何形式的缓解措施的情况下可能很有用。

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