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直流线路电压降及安全截面快速计算方法

来源于: 发表时间:2020-12-31 18:12 编辑:fzy

   林承过(厦门合立道工程设计集团股份有限公司,福建省厦门市 361004

直流线路电压降及安全截面快速计算方法(林承过)

Quick Calculation Method for Voltage Drop and Safety Section of DC Lines

LIN ChengguoXiamen Hordor Architecture & Engineering Design Group

Co.,Ltd.,Xiamen 361004,Fujian ProvinceChina

 

 

    AbstractThe data in relevant tables of national standard atlas 19DX101 - 1 Common Data of Building Electricity are converted and analyzed to deduce the quick calculation formula for the voltage drop and safety section of the DC conductor. Meanwhile,two engineering cases of automatic fire alarm system and DC emergency lighting system are introduced for the reference of the designers. Finally,the correction coefficient of the formula is derived for different conductor materials and different ambient temperatures,so that the formula can be conveniently promoted and applied.

    Key wordsDC line;percentage of voltage loss; load moment;current moment;safety section;case study;quick calculation formula;correction coefficient

 

  摘 要:通过对国标图集19DX101 - 1《建筑电气常用数据》相关表格数据进行转换、分析,推导出直流线路导线电压降及安全截面的快速计算公式。同时介绍火灾自动报警系统及直流应急照明系统两个工程案例,供设计人员参考。最后推导出不同导体材料、不同环境温度时公式的修正系数,便于公式的推广运用。

  关键词:直流线路;电压损失百分数;负荷矩;电流矩;安全截面;案例分析;快速计算公式;修正系数

  中图分类号:TU852           文献标识码:A

     doi10.3969 / j. issn.1003 8493.2020.12.003

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