简析室外道路照明电缆截面积的选择  

Brief Analysis of Selection of Cross-sectional Area for OutdoorI Road Lighting Cables

作　　者：赵安 ZHAO An(China Aviation Planning and Design Institute(Group)Co.,Ltd.,Beijing 100120,China)

机构地区：[1]中国航空规划设计研究总院有限公司,北京市100120

出　　处：《建筑电气》2024年第5期57-61,共5页Building Electricity

摘　　要：结合实际案例,阐述选择室外道路照明电缆截面积时,除考虑电缆载流量及线路电压损失外,还应考虑断路器的保护灵敏性,通过分析影响断路器保护灵敏性的因素,提出室外道路照明电缆截面积的选择建议。Based on practical cases,the paper elaborates that it is required to consider not only the current-carrying capacity and line voltage drop on cables but also the protective sensitivity of circuit breakers when the cross-sectional area is selected for outdoor road lighting cables.By analyzing the factors affecting the protection sensitivity of circuit breakers,it has proposed suggestions for selecting the cross-sectional areas of outdoor road lighting cables.

关 键 词：室外道路照明 电缆截面积 线路电压损失 供电距离 相线与中性线短路故障 保护灵敏性 RCD 泄漏电流 

分 类 号：TU852[建筑科学]