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Third-Rail Insulator Failure Causes and Mitigating Practices: A Comparative Study of Multiple Case Studies in the U.S.
Urban Rail Transit ( IF 1.7 ) Pub Date : 2020-10-12 , DOI: 10.1007/s40864-020-00134-3
Behzad Rouhanizadeh , Sharareh Kermanshachi

Rail transit systems are one of the most important and popular types of transit systems used daily in metropolitan areas all around the world. The third rail is one of the providers of traction power in electrified rail systems, but it faces several issues, such as insulator failures. The purpose of this study is to investigate the causes of insulator failures, which have not been comprehensively studied and presented in the literature. To accomplish this objective, eight transit systems with third rails were selected to (1) investigate the characteristics of third-rail systems, (2) determine the causes of insulator failures, (3) analyze the costs associated with insulator failures, and (4) determine mitigating practices to reduce the number and cost of insulator failures. After a thorough literature review, details of eight case studies were collected from different transit agencies, and their subject matter experts were asked to complete a survey and provide input. The results revealed that a build-up of dirt was the major cause of the 17 identified causes of insulator failures; carbon dust and dirt were identified as the most present particles in third-rail systems. It was noted that transit agencies often implement multiple mitigating practices such as cleaning the insulator, performing visual inspections, and conducting regular maintenance to reduce the number and cost of insulator failures. The findings of this study will help decision-makers for transit systems make timely decisions to prevent third-rail insulator failures and adopt appropriate practices that best fit their transit system.



中文翻译:

第三轨绝缘子故障的原因和缓解措施:美国多个案例研究的比较研究

铁路运输系统是世界各地都会区每天使用的最重要和最受欢迎的运输系统之一。第三条轨道是电气化轨道系统中的牵引力提供者之一,但它面临着一些问题,例如绝缘子故障。这项研究的目的是调查绝缘子故障的原因,这些原因尚未得到全面的研究和介绍。为了实现此目标,选择了八个带有第三条导轨的运输系统,以(1)研究第三条导轨系统的特性,(2)确定绝缘子故障的原因,(3)分析与绝缘子故障相关的成本,以及(4) )确定缓解措施,以减少绝缘子故障的数量和成本。经过全面的文献审查后,从不同的运输机构收集了八个案例研究的详细信息,并请其主题专家完成调查并提供意见。结果表明,积尘是导致绝缘子故障的17个原因中的主要原因。碳粉尘和污垢被确定为第三轨系统中最常见的颗粒。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。要求他们的主题专家完成调查并提供意见。结果表明,积尘是导致绝缘子故障的17个原因中的主要原因。碳粉尘和污垢被确定为第三轨系统中最常见的颗粒。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。要求他们的主题专家完成调查并提供意见。结果表明,积尘是导致绝缘子故障的17个原因中的主要原因。碳粉尘和污垢被确定为第三轨系统中最常见的颗粒。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。结果表明,积尘是导致绝缘子故障的17个原因中的主要原因。碳粉尘和污垢被确定为第三轨系统中最常见的颗粒。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。结果表明,积尘是导致绝缘子故障的17个原因中的主要原因。碳粉尘和污垢被确定为第三轨系统中最常见的颗粒。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。需要注意的是,运输机构通常采取多种缓解措施,例如清洁绝缘子,进行目视检查以及进行定期维护,以减少绝缘子故障的数量和成本。这项研究的结果将有助于公交系统的决策者及时做出决策,以防止三轨绝缘子发生故障,并采取最适合其公交系统的适当做法。

更新日期:2020-10-12
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