摘要
以国家现行技术规范和IEC标准为依据,从电涌保护器(SPD)安装处的预期雷击电流、设备可耐受冲击电压、SPD有效保护电压等方面出发,对建筑物低压配电系统SPD的选型及应用进行了探讨,并对设计应用中SPD的后备保护、级间配合、Ⅱ级试验SPD与Ⅰ级试验SPD的替换关系等易错问题进行了分析,同时对智能SPD与SPD监控系统进行了论述。
Based on the current national technical specifications and IEC standards. This paper starts from the expected lightning stroke current at the SPD installation place, the impact voltage that the equipment can withstand, and the effective protection voltage of SPD. This paper discusses the selection and application of SPD in low-voltage distribution system of buildings, and for the design of the SPD backup protection, inter-stage cooperation, Ⅱ test SPD and Ⅰ test SPD replacement relationship and other issues are analyzed, the intelligent SPD and SPD monitoring system are discussed.
作者
李蔚
李光曦
Li Wei;Li Guangxi(CITIC General Instituteof Architectural Design and Research Co.,Ltd,Wuhan 430014,China)
出处
《智能建筑电气技术》
2022年第5期5-12,共8页
Electrical Technology of Intelligent Buildings
关键词
电涌保护器
冲击电流
标称放电电流
电压保护水平
智能SPD
SPD监控系统
surge protection device
impulse current
nominal discharge current
voltage protection level
intelligent SPD
SPD monitoring system
