查询词典 lightning stroke

The technical problems, about shortage of separation distance, the feasibility of high-rise polymerization factory building, the fire separation and explosion-proof design of polymerization factory building, the selecting and arrangement of water spraying extinguishing system nozzle, the establishment of deluge system valve, and the essentiality of water spraying extinguishing system which is to be established to protect the VCM gasholder, the positioning of water curtain settled under the space which connect the PVC pack house and pack department and how long the system continue operate? The selecting and the quantity of fire extinguishing agent about gas extinguishing system, which will be used in the new 35KV switch station and some rooms including cabinet room, primary control room, UPS room, voltage changer room, belong to new polymerization power panel and UPS station. Designing the model of power supply and distribution for fire-fighting and designing the hardware organization, software, model of data transmission and fire gang control logic programmer about automatic fire alarm system. Making certain the grade of release source point in the fire or explosive atmosphere and delimiting different grade explosion-proof space. Selecting correct explosion-proof construction of electrical apparatus and delimiting the class of building lightning protection, putting forth the concert steps to deal with thunder stroke and electrostatic discharge and so on, have been deeply researched in the process of designing and then the concert steps to deal with them have been putted forth.

针对设计中遇到的防火间距不足、聚合厂房可否采用高层厂房、聚合厂房的防火分隔和防爆设计、水喷雾灭火系统的喷头选型和布置、雨淋阀组设置、VCM气柜是否需要设置水喷雾灭火系统、PVC仓库与包装车间相通处水幕带的布置和系统工作时间的确定、新建35kV开关站和聚合配电及DCS机柜间内的机柜间、主控室、UPS间、变压器室等处设置的气体灭火系统选型和灭火剂用量确定、消防供配电方式、火灾自动报警系统的硬件结构、软件设计、数据传输方式及联动控制设计中的逻辑编程、爆炸和火灾危险环境危险释放源等级确定和防爆区域等级范围的划分、爆炸危险区域电气设备的防爆结构选型、建、构筑物的防雷类别划分及采取的防雷、防静电措施等具体工程技术问题在深入分析研究后，提出了相应的解决措施。

It can reduce the numbers of lightning accidents after sing of the overhead insulating conductor, but the accident of overhead insulating conductor broken by lightning stroke still happens from time to time.

采用架空绝缘导线后，可以大大降低雷害事故发生次数，但是在实际运行中架空绝缘导线雷击断线的事故却时有发生。

Lightning strokes easily strike the steel weighing platform, causing damage to the sensor and the instrument. The concrete weighing platform is effective on lightning stroke resistance as it is of nonconductor.

钢构秤台易出现雷击现象，造成传感器和仪表损坏，给客户构成极大损失；而混凝土秤台则是非导电体，能有效防止雷击。

While for the two lightning flashes with multi-striking-points return stroke in the Inland Plateau of China, the branch root of discharge channel is found to be beneath the thundercloud.

南方的多接地点回击的闪电为多次回击，回击后的K变化相对较弱；内陆高原多接地点回击的闪电为单次回击，在回击过程后跟随有长时间的云内放电过程，期间有活跃的K变化。

Based on the knowledge of physical process of downward lightning stroke and the rule of shielding failure dispersity of transmission line, Lightning stroke process simulation model is built up.

根据对下行雷闪选择击中点的物理过程和输电线路绕击规律的认识，建立了新的雷击过程仿真模型。

In order to prevent and avoid the damage of lightning stroke on electronic systems and equipment,the lighting designs are investigated,including direct lightning stroke,lightning invasion,elevatory antenna protection,ground network configuration,etc.

为了预防和避免雷电对电子系统设备造成破坏，研究了电子系统的避雷设计，包括直击雷防护、感应雷防护、架高天线防护、地网设置等方面，并用实例进行了验证。

That is plain; for his sword lay beside him, twisted and untempered as if by lightning-stroke.

这是很明显的，因为他的剑就在他身边，像是被闪电击中了，扭曲变形。

In recent years, lightning stroke is one of the important causes of the accidents that occur on transmission lines. With the increase of voltage grade of transmission line, the proportion of outages because of shielding failure also increases. Therefore, exactly evaluating lightning-withstanding level and shielding failure flashover rate of transmission line, is especially important for system service and stable operation.

雷击是引起线路故障的重要原因之一，随着电压等级的升高，由于绕击而引起的线路跳闸事故所占的比例也越来越大，因此准确评价线路的绕击耐雷性能对于电力系统的安全稳定运行有着重要的意义。

The operation experiences of power transmission lines show that lightning stroke is the principal cause of transmission line trip outs.

国内外运行经验表明，雷击是造成输电线路跳闸的主要原因。

The study indicates that:install MOA at line side is the most effectiveness method to protect banked switch,keep up the tower dielectric level will increase the probability of lightning stroke, but it can reduce the amplitude of lightning intrusive waves, this is advantage to the protection of the substation ,and lightning protective effect of this mode is the best.

研究表明：在开关前安装MOA是保护热备用开关的最有效措施，即使在最严重的情况下，热备用开关的绝缘裕度也超过10%，可以保护开关的正常使用；不增加进线保护段杆塔的绝缘水平会增加进线保护段的雷击概率，但是此措施可以降低入侵波的幅值，对变电所防雷有利，这种防护方式的防雷效果最好。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。