论工厂导线和电缆截面的选择

论工厂导线和电缆截面的选择

字数:8893,页数:26 附任务书,开题报告

摘要

导线和电缆的选择是供配电系统设计中的主要内容之一。由于导线和电缆是供配电系统中输送及分配电能的主要元件，且需大量有色金属，因此在选择是要求既要保证供电系统的安全、可靠，又要充分利用导线和电缆的负载能力，节约材料降低投资。目前提倡采用铜线，节约电能，而在易爆炸腐蚀严重的场所，以及用与移动设备和监测仪表等必须采用铜线。导线包括架空裸导线和绝缘导线。关键词：导线电缆;主要特点;选择性;节能;材料;载流;经济

Factory power supply design
DaXiang Cao
0501 Electrical automation

Abstract: The wire and electric cable's choice is one of for in electrical power distribution system design primary coverages. Because the wire and the electric cable are for the electrical power distribution system in the transportation and the assignment electrical energy key element, and needs the massive non-ferrous metals, therefore is the request both must assure power supply system's security in the choice, reliably, and must use the wire and electric cable's load capacity fully, saves the material to reduce the investment. At present advocates uses the copper wire, saves the electrical energy, but easy to be exploding corrodes the serious place, as well as with and so on must use the copper wire with the mobile equipment and the monitor measuring appliance. The wire including is built on stilts the uninsulated conductor and the insulated conductor
Key words: Wire electric cable; Main feature; Selectivity; Energy conservation Material; Carries the class; Economy

第1章概述……………………………………………………………3
第2章按允许截流量选择导体和电缆截面…………………………5
第2.1节导体的温升…………………………………………………5
第2.2节导体的允许温度与允许载流量……………………………5
第2.3节按允许载流量选择导体截面………………………………6
第3章按允许电压损失选择导体和电缆截面………………………8
第3.1节线路电压损失的计算………………………………………8
第3.2节按允许电压损失选择截面…………………………………11
第4章按经济电流密度选择导体和电缆截面………………………14
第4．1节济电流密度…………………………………………………14
第4.2节按经济电流密度选择截面…………………………………14
小结……………………………………………………………………16
附录表…………………………………………………………………17
致谢……………………………………………………………………21
参考文献………………………………………………………………22

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