道路工程照明电缆选型分析
Analysis of Lighting Cable Selection for Road Engineering
谢晓凡1
作者信息
- 1. 福建省水利水电勘测设计研究院有限公司,福建 福州 350001
- 折叠
摘要
小区道路照明具有配电线路长、灯具分布广等特点,在选择电缆时,需细致考虑导体材料、绝缘水平和芯数,同时,电缆截面的选择也至关重要.这不仅要基于保护性配合、敷设方式及环境修正等多方面因素,还需精确计算配电线路的电压损失和短路电流.此外,为确保系统稳定运行,必须对配电线路短路保护动作的灵敏度和过负荷保护进行严格的校验.为此,文中专门绘制了B型、C型微型断路器与不同截面铜导线最大保护长度的配合表,旨在为设计人员提供全面、精准的参考依据.
Abstract
The lighting of community roads has the characteristics of long distribution lines and widely distributed lamps.When selecting ca-bles,it is necessary to carefully consider conductor material,insulation level,and number of cores.At the same time,the selection of the ca-ble cross-section is also crucial.This not only needs to be based on multiple factors such as protective coordination installation method,and environmental correction,but also requires precise calculation of the voltage drop and short circuit current of the distribution line.In addition,in order to ensure stable operation of the system,it is necessary to strictly verify the sensitivity of the short circuit protection and overload pro-tection of the distribution line.For this purpose,we specially drawn up a coordination table for the maximum protection length of B-type and C-type miniature circuit breakers with different cross-sectional copper conductors,aiming to provide with comprehensive and accurate refer-ence basis.
关键词
电缆型号/过负荷保护/载流量Key words
Cable model/Overload protection/Current carrying capacity引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据