各类OPGW综合性能分析和比较

来源 :信息与电脑(理论版) | 被引量 : 1次 | 上传用户:leon_xu23
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
目前的架空电力线主要有铜绞线、铝绞线、钢绞线、铝合金绞线、铝包钢绞线、铜包钢绞线及不同材料构成的复合绞线。而目前广泛使用的光纤复合架空地线(OPGW)的材料构成主要有铝合金绞线、铝包钢绞线、钢芯铝合金绞线和铝包钢芯铝合金绞线等。本文对其进行了深入分析和研究。
其他文献
An earthquake measuring 5.1 on the Richter scale struck Wenan county,Hebei Province on July 4,2006. No casualties have been reported,with only slight damage. The disaster level of this event is the sl
期刊
研究了不同浓度NaCl胁迫下,香根草(Vetiveria zizanioides)根、叶中的游离态、结合态、束缚态多胺(PAs)[包括腐胺(Put),尸胺(Cad),亚精胺(Spd)和精胺(Spm)]含量的变化。在中度盐胁迫(100,200mmolL-1NaCl)9天时,香根草基本能够正常生长,但在重度盐胁迫(300mmolL-1NaCl)下,其生长受到严重抑制。在上述3个不同浓度的NaCl胁迫下
期刊
The authors would like to inform the readers that in the above mentioned paper,the word"Loosestrife"on p.533, the ninth line of the left-hand column should be replaced by"Desmodium motorium".In additi
期刊
Pitchers of the carnivorous plant Nepenthes have evolved specialized organs serving the purpose of attracting,capturing,retaining and digesting small animals,mostly insects.They consist of several wel
期刊
The fast developing remote sensing techniques play an increasingly important role in earthquake emergency response, disaster survey and loss estimation. As there is a lack of quantitative studies on s
期刊
Leaves are organs sensitive to environmental changes in the process of evolution and may exhibit phenotypic plasticity as a response to abiotic stress.However,affirmation of leaf morphological plastic
期刊
The M_S8.0 Wenchuan earthquake in Sichuan caused heavy casualties and serious economic loss because of damage to engineering structures in high earthquake intensity regions. Earthquake intensity, espe
期刊
The paper introduces the tectonic background,focal mechanism and distribution of aftershock of the Wenchuan earthquake on May 12,2008. The earthquake is considered to be the result of long-term intera
期刊
紫外辐射(UV-B)对人类健康、水域和陆地生态系统都存在不同程度的影响。综合论述了近年来有关陆地植物对UV-B辐射响应的研究成果及进展,包括植被外部形态、光合作用和光合色素以及UV-B吸收物质等胁迫响应特征变化。另外,对植被在生态系统尺度上对UV-B辐射增强的响应以及UV-B与其它环境与生物因子间的交互效应也进行了阐述。文献分析表明,约2/3的陆地植被对UV-B辐射增强的响应表现显著,虽然存在种间
期刊
对豌豆幼苗5天生长期内紫外线-B(UV-B)辐射对豌豆茎伸长生长和一氧化氮(NO)释放率的影响进行了研究.实验结果表明,UV-B辐射促进了豌豆茎中的NO释放,同时抑制豌豆茎伸长生长;外源NO供体根际处理豌豆幼苗,与UV-B辐射的上述效应相似;而用NO清除剂(PTIO)处理豌豆幼苗会产生和UV-B辐射相反的效应,即增加了茎的伸长.由此可推测,NO也许作为信号参与调节UV-B辐射诱导的生长抑制.
期刊