每台报警显示箱可反映15～20条电网支路的单相对地绝缘状态。
Each alarm kit displays the phase to ground insulation through 15-20 branches of the network.
介绍了母线参数的测量方法，提出了一种简单、实用的测量母线对地绝缘电阻值的方法；
It has introduced the survey method for bus parameter, advances a simple and practical survey method of insulating resistor to the ground for DC bus;
该测量方法的提出彻底解决了传统绝缘参数间接测量法只能测量电网对地阻抗近似代替对地电容的缺陷。
This presented method thoroughly gets over a gap that foregone indirect methods can only measure insulation impedance to substitute distributing capacitance.
油纸电容式穿墙套管主要用于发电厂、变电站中引导高压或超高压导线穿过建筑物的墙板，作为导电载流和高压对地墙板的绝缘及机械固定用。
Oilpaper capacity type wall bushing is used for insulation and fixed HV or EHV conductor that crosses the wallboard of building in power plant and substation mainly.
表面电阻测试仪是一种测试物体表面电阻率和对地电阻的仪器，可进行简单可重复的导电性能、静电耗散、绝缘表面性能的测量。
This compact meter measures both surface resistivity and resistance to ground. It is giving simple repeatable measurement of conductive static dissipative and insulative surface.
提出一种仅用万用表和标准电阻就可以准确测量出直流母线和支路负荷正对地电阻、负对地电阻的新测量方法，这种方法能准确查找绝缘低故障支路；
This paper describes a new method by which the positive, negative resistance to ground of DC bus and branch could be tested precisely by mere use of universal instruments and standard resistors.
本文采用了一种常态下利用双不对称电桥实时监测直流系统绝缘的方法，解决了上述问题。目前广泛使用的低频信号注入法容易受到直流系统支路中存在的对地分布电容的影响。
A new method of monitoring real-timely for DC system insulation using double asymmetrical Bridges in normal mode is adopted in this paper, and the shortcomings of symmetrical bridge are overcome.
PVC是涂层导线的最普遍的塑料，因为它在费用是相对地低的，韧性，阻燃并且拥有好绝缘物产。
PVC is the most popular plastic for coating wires, as it is relatively low in cost, resilient, fire retardant and possesses good insulating properties.
PVC是涂层导线的最普遍的塑料，因为它在费用是相对地低的，韧性，阻燃并且拥有好绝缘物产。
PVC is the most popular plastic for coating wires, as it is relatively low in cost, resilient, fire retardant and possesses good insulating properties.
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