論工廠導線和電纜截面的選擇

字數:8893,頁數:26  附任務書,電子機電論文開題報告

目       錄

第1章 概述……………………………………………………………3
第2章 按允許截流量選擇導體和電纜截面…………………………5
第2.1節 導體的溫升…………………………………………………5
第2.2節 導體的允許溫度與允許載流量……………………………5
第2.3節 按允許載流量選擇導體截面………………………………6
第3章 按允許電壓損失選擇導體和電纜截面………………………8
第3.1節 線路電壓損失的計算………………………………………8
第3.2節 按允許電壓損失選擇截面…………………………………11
第4章 按經濟電流密度選擇導體和電纜截面………………………14
第4．1節 濟電流密度…………………………………………………14
第4.2節 按經濟電流密度選擇截面…………………………………14
小結……………………………………………………………………16
附錄表…………………………………………………………………17
致謝……………………………………………………………………21
參考文獻………………………………………………………………22

摘   要

     導線和電纜的選擇是供配電系統設計中的主要內容之一。由于導線和電纜是供配電系統中輸送及分配電能的主要元件，且需大量有色金屬，因此在選擇是要求既要保證供電系統的安全、可靠，又要充分利用導線和電纜的負載能力，節約材料降低投資。目前提倡采用銅線，節約電能，而在易爆炸腐蝕嚴重的場所，以及用與移動設備和監測儀表等必須采用銅線。導線包括架空裸導線和絕緣導線。關鍵詞：導線電纜;主要特點;選擇性;節能;材料;載流;經濟

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