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Relationship between pipeline source impedance and touch voltage hazards induced by power lines

机译：电力线管道源阻抗与触控电压危险的关系

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摘要

Touch voltage rather than prospective touch voltage is a critical measure in assessing earthing safety particularly for third party assets such as pipelines. The touch (or `loaded') voltage is an expression of the actual hazard across a subject. It is a significant leveller because it is a consistent measure of hazard irrespective of soil resistivity, existence of surface impedances and other series impedances. A key component of the touch voltage circuit, and one largely ignored or misunderstood by the inexperienced, is the source impedance of a prospective touch voltage, which is discussed in detail herein. This paper analyses the importance of the touch voltage for electrical hazards on insulated metallic pipelines. It paves the way for further research in consideration of the change from Dalziel's fixed body resistance to Biegelmeier's voltage dependent body resistance distribution. It has important implications for design and safety verification of pipe earthing systems.
机译：触摸电压而不是预期触摸电压是评估接地安全性的关键措施，特别是对于诸如管道等第三方资产的接地安全性。触摸（或“装载”）电压是对象的实际危险的表达。它是一个重要的平均值，因为它是一种持续的危险量，而不管土壤电阻率，表面阻抗都存​​在于其他系列阻抗。触摸电压电路的关键部件，并且通过缺乏忽略或误解的一个是一个主要忽略或误解的是预期触摸电压的源阻抗，其在本文中详细讨论。本文分析了触摸电压对绝缘金属管道电气灾害的重要性。考虑到从Dalziel的固定体抵抗到Biegelmeier的电压依赖性车身阻力分布的变化，它为进一步研究提供了进一步研究的方式。它对管道接地系统的设计和安全验证具有重要意义。

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