Internal overvoltage is called switching overvoltage or resonance overvoltage, and it threatens the safe operation of electrical equipment and the personal security of operating personnel.
内部过电压又称操作过电压或谐振过电压，对电气设备的安全运行和操作人员的人身安全构成严重威胁。
Coal substation is the joint of the electrical network which has many kinds of loads, and high request of security condition.
煤矿变电站作为负荷种类多，安全条件要求高的电力网络连接点，其自动化水平显得尤其重要。
For fliers, the holidays often present lengthy airport security lines, fast-food temptations and mass scrambles for open electrical outlets.
对旅行者来说，假期意味着在机场排长队等安检，各种快餐诱惑，一群人争夺公用插座。
It has electrical fittings and includes provisions for data, communication, and security camera systems.
它含有电气设备，同时能够为数据、通信和安全摄像机系统提供支持。
Electrical operation devices which has the two function of power cut emergency and fault emergency must indeed meet the "security norms".
真正满足《安全规范》的紧急电动运行的电气操作装置必须严格具有停电应急和故障应急两种功能。
The safety distribution system for a residential district was presented, which includes technologies of shock proof, fire prevention, surge protection, electrical inspection and public security.
电气安全最受人们的重视和关注，包括防人身电击技术、防电气火灾技术、电涌防护技术、电气检修安全技术和保安技术等。
The application of personnel: managers, security prosecutors, ventilation management, mechanical and electrical maintenance personnel and the underground movement of workers.
适用人员：管理干部、安全检察人员、通风管理人员、机电维修人员及井下流动作业人员。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
此类继电器能够增加系统安全性，并对三相交流接地电阻或接地配电系统进行可靠的低级接地故障检测。
It features a stucco facade and a standing seam roof and comes complete with electrical power and provisions for data, communication, and security camera systems.
它的特点是有灰泥正面和直立顶板，同时连同电源和数据，通信，安防监视系统一起。
Anixter, comes from USA. She is a leading global supplier of communications and security products, electrical and electronic wire and cable, fasteners and other small components.
艾利·斯特来自美国，是专业提供通讯及安防设备、电子及电器缆线、紧固件及其他小型配件的全球领先的供应商。
The electrical design of hospital buildings shall not only consider energy - saving, but also emphasize security and convenience.
摘要医院建筑电气设计既要考虑节能，又要注重安全性和便利性。
In the category of Top Safety and Security Commodities for fiscal year 2009, electrical products moved from 5th to 2nd position just behind pharmaceuticals.
在2009财政年度最高安全和安全商品的类别中，电器产品已经从第五位升到第二位，仅次于医药产品的地位。
In the category of Top Safety and Security Commodities for fiscal year 2009, electrical products moved from 5th to 2nd position just behind pharmaceuticals.
在2009财政年度最高安全和安全商品的类别中，电器产品已经从第五位升到第二位，仅次于医药产品的地位。
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