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首页> 外文会议>2016 Down to Earth Conference >Relationship between pipeline source impedance and touch voltage hazards induced by power lines
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Relationship between pipeline source impedance and touch voltage hazards induced by power lines

机译：管线源阻抗与电源线引起的接触电压危险之间的关系

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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：接触电压而不是预期接触电压是评估接地安全性的一项关键措施，尤其是对于第三方资产（例如管道）而言。触摸（或“带载”）电压表示整个对象的实际危险。它是重要的找平器，因为它是对危害的一致测量，无论土壤电阻率，表面阻抗和其他串联阻抗的存在如何。触摸电压电路的关键组成部分是预期触摸电压的源阻抗，这在很大程度上被经验不足者所忽略或误解，这将在本文中详细讨论。本文分析了接触电压对于绝缘金属管道电气危险的重要性。考虑到从Dalziel的固定体电阻到Biegelmeier的电压依赖性体电阻分布的变化，这为进一步的研究铺平了道路。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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