住宅建筑底层集中表箱表后共用PE干线方案探究  

Discussion on the Scheme of Sharing PE Trunk Line behind Centralized Meter Box at the Bottom of Residential Building

作　　者：李金林 Li Jinlin(Guangdong Boyi Architectural Design Institute Co.,Ltd.,Foshan 528311,China)

机构地区：[1]广东博意建筑设计院有限公司,佛山528311

出　　处：《智能建筑电气技术》2021年第2期67-70,74,共5页Electrical Technology of Intelligent Buildings

摘　　要：针对高层住宅建筑,当供电部门要求住户表箱在底部集中设置时,通过对表后入户线改用共用PE干线的优化方案探析,论述改进设计的可行性及良好的经济效益。并对方案可能存在的PE线的可靠连接、住户的电压质量、相保阻抗、系统故障防护的灵敏度等问题,提出可供设计选择的应对措施。In view of the high-rise residential buildings,when the power supply department requires the household meter box to be set centrally at the bottom,this paper discusses the feasibility and good economic benefits of the improvement scheme by analyzing the optimization scheme of changing the user line behind the meter box to the shared PE trunk line.In addition,the possible problems such as the reliable connection of PE line,the voltage quality of users,phase protective impedance,the sensitivity of system fault protection and so on are discussed.Put forward solutions for design selection.

关 键 词：共用PE干线 电压质量 阻抗 故障防护 灵敏度 

分 类 号：TU855[建筑科学]