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随着铁路信号设备的发展,计算机等电子设备的大量使用,铁路运输日趋繁忙,雷电所带来的危害也越来越严重,对雷电的防护也已成为保证铁路安全运输的重要问题。 相似文献
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《中国新技术新产品》2016,(1)
雷电感应高电压以及雷电电磁脉冲给相关工作、人民的生命财产和经济建设带来的安全隐患、事故与经济损失是不可估量的。本文从雷电和浪涌的产生及其危害进行了阐述,探析了雷电和浪涌防护的措施。 相似文献
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太阳能热水器已经广泛运用于千家万户,但是对于广东这样的雷暴多发省份来讲,若对太阳能热水器雷电灾害隐患视而不见或防雷的设计不完善,就会出现太阳能设备遭到雷电损坏,甚至导致人员伤亡的情况。本文以翁源县气候因素为例,通过相关雷电灾害事故的统计、分析太阳能热水器的基本组成、安装简易防雷防雷装置存在的隐患以及如何完善防雷措施等多方面因素进行探讨,给出太阳能热水器雷电防护方面更完善的设计。 相似文献
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本文分析了高明区10kV配电线路及设备的耐雷水平和比较无间隙金属氧化物避雷器和过电压保护器利弊,提出将过电压保护器作为线路和设备防雷害过电压的第一道保护(作为无间隙金属氧化物避雷器的"前置保护")的应用方法。同时通过事实验证了过电压保护器防雷害过电压的效果,并对过电压保护器的选点安装进行优化并指引,既为企业节省了大量成本,同时又规范了现场安装,减少后期维护工作量,取得良好的经济效益 相似文献
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本文利用物联网技术,设计了防雷装置在线检测系统,可实现对防雷装置接地电阻及雷击峰值电流的自动检测,对保障建筑物及人身安全具有重要意义。 相似文献
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Zhang Ping 《中国标准化(英文版)》2004,2(2)
The introduction of IEC/TC81
Thunderstorms are natural weather phenomena and there are no devices or methods capable of preventing lightning discharges. Lightning flashes striking structures or services entering the structures, or striking earth nearby are hazardous to people, to the structures themselves, their contents and installations, as well as to services.Hence lightning protection is very important for national economic development. The international trade in lightning protection measures integrat ed in plants or buildings is of increasing importance:more than 500 million USD, world wide are estimated today; consequent loss, where protection measures are not provided, is some order of magnitude higher.The number of countries where lightning protection is required either by law or by insurance companies is growing. Some countries have conflicting national rules and many developing countries do not have the relevant international standards, making the need for such standards all the more urgent. 相似文献
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现代先进战斗机大量采用各种先进的航空电子系统,传统的检测手段一般采用人工方法直接测试将故障定位到电路板级,操作复杂,所需时间长,不能满足现代化战争的快速要求,而且操作人员的劳动量大,不利于连续作战。所以,应用现代化的检测手段检测和确定故障备受关注。本文总结了现役战斗机测试系统的现状,存在的问题,并阐述了测试设备的发展趋势。 相似文献
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Zhang Ping 《中国标准化(英文版)》2004,5(5)
Seminar for National Lightning Protection and Standardization was held in Chengdu of Sichuan province in China on July 30-31. It was sponsored by the Chinese National Technical Committee for Lightning Protection Standardization and was organized by ZhongGuang High-tech Industrial Development Co.,Ltd. About 70 participants engaged in R&D, management and education of lightning protection technology and in design, manufacturing, test of lightning protection products from different industries, such as railway, telecommunication, meteorology, traffic, construction etc, attended the seminar. Prof. LuChonghui, Mr. Wang Deyan and Prof. He Jinliang presided it respectively, who are the chairman and vice chairmen of the committee. Mr. Ma Lincong,secretary-general of China Association for Standardization, made the opening address. 相似文献
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《中国标准化(英文版)》2011,(5):36-38
Lightning Protective Devices Testing Center affiliated to Shanghai Lightning Protection Center (hereinafter referred to as “Testing Center”) is a third-party technical institution specialized in the testing of lightning protection equipment,which has passed the qualification certification and metrology accreditation of Certification and Accreditation Administratin of the People's Republic of China and is approved by China National Accreditation Service for Conformity Assessment Meanwhile,it is also a lightning products quality inspection institution authorized by Shanghai Municipal Bureau of Quality and Technical Superwsion and the only lightning products testing laboratory authorized by China Quality Certification Center.The Center has always attached great importance to the standardization work,and accumulated rich successful experiences in enhancing the testing capability and technical service level by means of standardization. 相似文献
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为了保证实验室检定、检测、校准数据准确可靠,应配备满足规程、规范、规则所要求的仪器设备和标准物质,并对所使用的仪器设备和标准物质实施有效的控制。 相似文献
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如何科学的建立实验室是很多科研单位或检测机构不断追求的课题,其中设备配备是建立实验室的关键。实验室建立者首先要明确实验室功能以及设备对环境的要求,做好基础设施建设;其次人员配备和基础配套设备要跟上,为实验室正常运转提供保障;最后主要设备的配备要有适用性和前瞻性,才能确保实验室发挥最大功效。科学的实验室必须达到人、设备、环境高度协调。 相似文献
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目前在高层建筑电梯工程中一些工程商及业主往往忽视防雷接地,给工程遗留下安全隐患;本文较深入地探讨了高层建筑电梯工程防雷接地措施和检测,供相关工程商及技术人员参考,以起抛砖引玉之效 相似文献