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介绍了电气设备污闪的原因、特点、条件及闪络过程,针对日益严重的大面积污闪实施了防污闪措施,并总结了多年来的防污闪经验。 相似文献
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随着冶金工业生产规模的不断扩大,工业粉尘给供电系统带来了较多的危害。如何防止和杜绝这种危害已是当务之急,越来越引起人们的高度重视,介绍了防污闪技术在临钢110kV供电系统中的应用情况。 相似文献
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污闪事故的原因与预防措施 总被引:1,自引:0,他引:1
1 前言随着现代工业的快速发展 ,城市大气污染日趋严重。兰钢厂为 2 0世纪 50年代建立的钢铁企业 ,35kV降压变电所为户外型 ,原设计标准等级偏低 ,加之以前对防污工作认识不足 ,致使 1 993~ 1 994年变电所发生多起污闪事故 ,造成线路停电、设备损坏、影响正常生产 ,给企业造成了一定的经济损失。所以 ,必须采取有效措施 ,防止污闪事故的发生。2 几起污闪事故回顾( 1 ) 1 993年 2月 2 0日 1 1 :0 0 351 2丙刀闸 ,350 1甲刀闸支持瓷瓶污闪炸裂。( 2 ) 1 993年 2月 7日 2 1 :30 1 # 所用变 35kV跌落保险支持瓷瓶污闪炸裂。( 3) 1 99… 相似文献
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宏晟电热有限责任公司是酒钢(集团)公司的主要能源动力中心,也是嘉酒电网的最大主力电厂。宏晟电热有限责任公司老厂是七十年代投产的火电厂,投产至今已有三十多年,老厂设备不具有“五防”闭锬功能,运行三十多年来,运行人员由于误操作引发电厂事故的情况也发生过很多次。随着电力系统自动化程度的进一步提高,作为主力电厂,西北电力局也要求电厂新上设备必须具有闭锬功能,老厂设备也需进行更型改造,具有“五防”闭锬功能。鉴于此种原因和为适应电力系统高自动化程度要求。我们决定在原有的设备基础上和“五防”厂家充分结合,确定了最佳改造方案,对电厂老厂的电气柜进行“五防”改造。 相似文献
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从污闪形成的气象条件和四个阶段较详细地叙述了污闪的成因,提出了具体的防污闪措施,井指出只要措施与方法得当,管理到位,预防事故的发生是有可能的。 相似文献
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本文介绍了重钢股份公司百吨铁水罐巴罐及罐内壁受冲刷、侵蚀的原囚,通过采取相应技术管理措施后,效果显著。 相似文献
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1997年4月15~18日,国家电力调度通信中心和电力部安生司在广东东莞联合召开了“电网污闪事故情况汇报暨对策研究会”。会议讨论并通过了“加强电力系统防污闪工作的技术措施(试行)”。该“措施”除了重中必须严格执行部原能源办(1993)45号文规定的各项防污闪规定外,要求补充做好以下工作:1.修订、完善污区分布图。2.按照修订后的污区分布图,核实各区段的污秽等级与外绝缘爬距的配置是否相适应.3.做好清扫质量的管理工作.4.注重绝缘子的选择,新建或调爬采用的绝缘子,要根据各地运行经验兼顾其质量与造型… 相似文献
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莱钢冶金厂区电网外绝缘污闪的原因,是由于电网处于冶金厂区污秽较严重的生产区域。分析了电网外绝缘污闪的条件,提出了抑制污闪的措施。 相似文献
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以一起110kV距离保护误动作为例,分析了引起距离保护误动作原因,制定可行的整改措施.指出了距离保护的TV二次回路接线须正确且符合规范的重要性。 相似文献
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A representative sample of contributors (333) to the Journal of Consulting and Clinical Psychology was asked to report on their motivations for conducting studies that had been published in that journal. Results indicate that the primary motivation of these clinical researchers was to build on prior theory and research through the gathering and analysis of new data to answer socially significant applied-clinical questions. More immediate pragmatic considerations (e.g., tenure, funding, degree or job requirements, and availability of Ss) were reported to be of secondary, but nevertheless significant, importance. Most respondents described the training model in which they had received their doctoral education or oriented toward an integrated scientist-practitioner approach rather than one that focused primarily on research, therapy, or assessment training. It was also found that these clinical researchers rarely conducted investigations in the context of community service or consultation interventions or in order to replicate past research. Results are discussed in light of current controversies in clinical psychology concerning the optimal model for training and the relevance of clinical research. (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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介绍了露转坑工程的施工过程,对井下控制测量施工精度的控制,及露转坑工程的贯通测量的控制。 相似文献
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In recent decades, we have made significant progress in the area of the ethical conduct of research. However, it appears that parallel progress with respect to our ethical responsibilities in the teaching arena has not kept pace with that made in the research area. The focus of this article is on the use of self-disclosure as a mandatory component of psychology courses. Issues such as competence, perceived coercion, confidentiality, conflict of interest, and others are addressed. Our Canadian Code of Ethics for Psychologists is examined with a view to arriving at decisions on these issues that will be beneficial to most students and not endanger some other students. Viable alternatives to mandatory self-disclosure are presented. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献