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Modelling of fault detection in electrical wiring

机译：电线故障检测建模

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摘要

Electrical wiring and cables, in many cases buried deep, in many systems and environments suffer damage. In some cases the damage only affects wire insulation and is not usually detected under normal operating conditions. This study discusses computer modelling of electrical wires, based on time-domain reflectometry using trains of successive pulses which were used in order to develop techniques and test procedures that would lead to identification of these types of faults. This study shows detailed simulations of defects in insulation of electrical wires and in cable shields, using dedicated electromagnetic modelling computation software. The results of simulations were compared with those obtained in experimental measurement for wires and cables of several metres in length. Comparison of the analysed measurement results for this novel technique shows clear indication of its relevance to flaw detection in electrical wires, guided through simulation.
机译：在许多系统和环境中，许多情况下深埋的电线和电缆会遭受损坏。在某些情况下，损坏仅影响导线绝缘，通常在正常操作条件下不会检测到。这项研究讨论了基于时域反射测量法的电线的计算机建模，该时域反射法使用了一系列连续脉冲，这些脉冲用于开发可以识别这些类型故障的技术和测试程序。这项研究使用专用的电磁建模计算软件显示了电线绝缘和电缆屏蔽层中缺陷的详细模拟。将模拟结果与长度为几米的电线和电缆的实验测量结果进行了比较。通过对这种新颖技术的分析测量结果进行比较，可以清楚地表明其与电线中探伤的相关性。

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