防雷的

In addition the roof of the building also played a lightning ground, air alert

另外楼顶还起到大楼的防雷接地、航空警示

In order to study the function of line surge arrester at line lightning protection equivalent circuit of line surge operation had been built considering conditions of straight lightning strike on tower top and round strike to conductor .

为了研究线路避雷器在防雷中的作用，根据雷电直击杆塔顶部及绕击导线两种情况，建立线路避雷器动作时的等值电路，推导出考虑残压影响的线路避雷器对雷电流的分流计算公式。

The status of lightning protection and problems, especially low insulation level of lines, lack of direct lightning protection measures, misemploy of lightning arrester and imperfect earth are discussed. Associative action of lightning overvoltage may be considered as the main ...

在此基础上提出了综合防雷措施(包括规范避雷器的安装维护、改善避雷器和杆塔接地、使用塔顶避雷针、使用自动消弧装置降低配电网建弧率、限制雷电流过后的弧光接地过电压和铁磁谐振过电压等)，以提高配电网耐雷水平和供电可靠性。

For reducing the LEMP lighting electromagnetic pulse radiation, the electrical source uses the Box-type power supply arrester, the power supply arrester and the modular power supply arrester as the third SPD surge protection device. The Low-voltage surge arrester or spark gap is laid between the compute net and equipotential grounding grids for avoiding signal interference and counterattack of ground voltage. The parameter and model of the signal lighting-protector of lines of communication are chosen according to the transfer rate, work level and characteristic impedance.

对控制房和DCS柜采用避雷针、独立针的直接雷防护；系统电源分别采用箱式电源避雷器、电源避雷器、模块式电源避雷器作为三级电源保护，减少LEMP雷电电磁脉冲辐射；计算机网络与等电位地网间设置低压避雷器或火花隙防止信号干扰和避免地电压反击；根据传输速率、工作电平、特性阻抗等，选择通信线路的信号防雷保护器的参数和型号。

In order to solve these problems, the measures and methods are discussed to ensure the safety of the tank farm and gas statio

分析当前销售企业油库、加油站防雷防静电方面存在的常见问题，探讨解决这些问题的措施和办法，保证油库、加油站的安全。

With the demonstration of 35kV line of Qinan substation, it built a numeral value calculation model of on-line data of each pole with EMTP program. Find out some factors of causing lines to outage frequently and the measures how to improve lightning withstand level of lines and decrease the lightning tripping outage of transmission line.

通过对线路基本电气参数的现场实测数据和波过程理论建立了与实际情况极为相符的雷击线路电磁暂态数值计算模型，在此模型基础上分析研究了影响线路耐雷水平的诸多因素，并重点研究了采用线路型避雷器来提高线路防雷性能的机理及影响因素。

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The lightning rod leads thunder and the strong thunder and lightning effect is very big to the threat of equipments safe movement,Lightning rod, lead the design of logging out, connecting a ground of pole with arrange direct ...

避雷针引雷，强大的雷电效应对设备安全运行的威胁很大，避雷针、引下线、接地极的设计和布置直接影响设备运行质量。本文以ZQZ-AZ型自动气象站为例，讨论原防雷结构的不足，提出改进的办法。

Firstly, the protection of direct lighting about traction substation is discussed. Secondly the excessive voltage made by wave of lighting is analyzed and some advices is given for it .Then a actual traction substation is computed and analyzed about it's excessive voltage, some problem should be considered in-depth are put out. At last , dependability of the measure of protection against lighting in this paper is analyzed.

首先研究了牵引变电所的直击雷保护，接着对雷电侵入波过电压进行了分析，并提出了雷电侵入波保护措施，然后以一个实际的牵引变电所为例对雷电侵入波过电压进行了计算和分析，并进一步指出了计算中应进一步考虑的若干问题，最后对本文提到的防雷措施的可靠性进行了综合的分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。