An investigation of space charge profile on the flashover characteristics of fiberglass reinforced plastic (FRP) tools under DC conditions

带电线路检修，即在输电线路通电时进行检修，是保证电力系统可靠性的一种高效、经济的方法。然而，由于曼尼托巴水电公司的两起事故，曼尼托巴的带电线路工作暂停了10年，至今仍未恢复到所需的容量。在这项工作中，将调查与直流（DC）输电线路上带电工作相关的因素的影响，以及直流特性如何影响工业中带电工人使用的工具的性能。有人怀疑，直流电压的特性可能会导致比在更常见的交流电（AC）上工作时所经历的更危险的工作条件。目前，提供工人安全的行业标准没有考虑与直流工作相关的独特特性，而是基于交流测试结果。

Live line maintenance, i.e. performing maintenance while power transmission lines are energized, is an efficient, economical method to ensure the reliability of electric power systems. However, live line work in Manitoba was suspended for 10 years as a result of two accidents at Manitoba Hydro, and it still has not resumed at the required capacity. In this work, an investigation into the effects of the factors associated with live line work on Direct Current (DC) transmission lines will be carried out and how the DC characteristics affect the performance of the tools used by live line workers in industry. There is suspicion that the characteristics of DC voltage may result in more hazardous working conditions than those experienced when working on the more common Alternating Current (AC). Presently, industry standards for providing worker safety do not consider the unique characteristics associated with working on DC, and are based on AC test results.