特高压输电线路绝缘子串较长，电压分布很不均匀。
The insulator strings of UHV AC transmission lines are very long, and the voltage distribution along them is non-uniform.
线路绝缘子发生覆冰闪络故障，对线路安全运行造成威胁。
The ice flashover accident of transmission line insulator is harmful for transmission line safe operation.
线路绝缘子发生覆冰闪络故障，对线路安全运行造成威胁。
The ice flashover accident of transmission line insulator is harmful for transmission line safe operation. The cause of insulator ice flashover is the ice bridge.
线路绝缘子发生覆冰闪络故障，对线路安全运行造成了威胁。
The menace of transmission line safe operation is the ice flashover accident of transmission line insulator.
按用途一般可分为线路绝缘子、变电站支持绝缘子子和套管三大类。
According to the usage, the insulators can generally be divided into three broad categories: line insulator, substation post insulator and bushings.
我国地形地貌复杂，覆冰面广，输电线路绝缘子冰闪事故时有发生。
Due to the varied topography and large icing area in China, the flashover accidents of ice-covered insulators happen with high frequency.
1998年底阳泉地区发生线路绝缘子覆冰闪络故障，对线路安全运行造成了威胁。
The running safety of line was threatened by insulator sleet covering flashover derault of line at the late of 1998.
本文总结和分析了影响输电线路绝缘子雷电闪络特性的重要因素，得到了一些有价值的结论。
Major influencing factors of lightning properties of insulators are analyzed and summarized as well as some valuable conclusions are presented in the thesis.
线路绝缘子污闪问题日益突出，表现为污闪次数的增加、面积的扩大，与雷害并列为造成停电事故的主要原因。
The problem of insulator pollution flashover in power lines is increasingly serious, because of increasing times and extending areas of flashover.
线路避雷器仅能保护安装了线路避雷器的杆塔自身的线路绝缘子（串）不发生雷击闪络，无外延的雷击保护范围。
The line arresters can only protect the line insulators on the tower equipped with the line arresters from lightning flash and they have no extended protective range.
架空线路用绝缘子和配件。金属配件。镀锌方管(TG)。
Insulators and fittings for overhead lines. Metal fittings. Galvanized square tubes (TG).
架空线路用绝缘子和配件。金属配件。密封臂(BS)。
Insulators and fittings for overhead lines. Metal fittings. Sealing arm (BS).
架空线路用绝缘子和配件。金属配件。双制动导线配置(ad)。
Insulators and fittings for overhead lines. Metal fittings. Double-stop conductor arrangement (AD).
架空线路用绝缘子和器材。金具。双联杆和横杆(TG)。
Insulators and fittings for overhead lines. Metal fittings. Twining and bracing rods (TG).
输电线路覆冰可引起导线舞动、杆塔倾斜、倒塌、断线及绝缘子闪络等问题。
Transmission line regelation may cause conductor galloping, pole leaning or collapse, conductor breaking or insulator flashover etc.
冰的电气特性影响输电线路覆冰绝缘子闪络电压。
The flashover voltage of iced insulators of transmission lines is affected by the electrical characteristic of ice.
本文研究结果认为，红外成像法和电场分布测量法是可用于实际输电线路的劣化绝缘子检测。
This study concludes that the infrared imaging method and the electric field distribution measurement method could be used for detecting faulty insulators of the transmission line.
最后，利用该样机，完成了一系列线路实测和实验室试验，为进一步研究绝缘子泄漏脉冲电流的规律提供数据支持。
Finally, a series of field and laboratory tests have been carried out with this sample machine, which provides data support for further study on the rule of insulator leakage pulse current.
概述了玻璃绝缘子在线路上运行过程中自动破碎（简称自破）的现象，并对其规律进行了综合分析。
The phenomena of self shattering of glass insulators during service in system is described and its regularity is analyzed.
绝缘子的好坏对线路的安全运行是十分重要的。
It is very important that the insulator is good or bad for the safe operation of the lines.
复合绝缘子以其重量轻、防污闪性能好等优点在我国电力线路中已得到越来越广泛的应用。
The composite insulator is light, and has low voltage of pollution flashover, so it's widely used in the power system in China.
因此，对盘形悬式绝缘子直流覆冰试验方法进行研究，对直流覆冰输电线路外绝缘特性的研究具有重大的意义。
Therefore, it has great significance to research DC icing test methods on disk-shaped suspension insulator for study of DC transmission line characteristics of external insulation.
脉冲电流法检测不良绝缘子的分辨率与输电线路电压等级有关。
The experiment results from our laboratory indicate the factors which influence the detecting resolution of pulse current method for identifying faulty of insulators.
研究成果为输电线路的绝缘子改造以及外绝缘设计提供参考。
It offers some help for insulator modification and external insulation design of transmission lines.
输电线路可靠性运行的关键是悬式绝缘子的质量。
The key to safe operation of electrical transmission line is the quality of suspension insulator.
大量研究结果表明，输电线路上的零值绝缘子可以通过流经杆塔接地线的绝缘子电晕脉冲信号检测出来。
Based on some research results, insulator corona pulses through the ground line of the tower could be used to identify faulty insulators on transmission lines.
输电线路常用瓷、玻璃和合成绝缘子。
The porcelain, glass and compound insulators are normally used in transmission lines.
为保证线路安全运行，研制安装了保护绝缘子串的引弧间隙，并先后在锚塔和高塔上安装了避雷器。
To ensure operation of transmission line safely, the arcing gap of insulator was developed and installed, and arrester was installed one after another on anchor tower and high tower.
输电线路的绝缘配合主要是选择绝缘子型式、绝缘子串的片数和空气间隙。
Selection of insulator type, number of insulator string and air space is the main basis of transmission line insulation coordination.
在2008年初的电网冰灾事故中，导地线金具和绝缘子覆冰掉串是输电线路事故中常见的情况。
In the ice calamity accident of power grid on beginning of 2008, the common condition in the accident of transmission line was the ice loading on earth wire fittings and insulators.
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