SPD保护距离与电压保护水平相互影响的分析探讨  

Analysis and Discussion on Interaction Between SPD Protection Distance and Voltage Protection Level

作　　者：李国会[1] 张晶 刘明 黄玥 LI Guohui;ZHANG Jing;LIU Ming;HUANG Yue(China Southwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]中国建筑西南设计研究院有限公司,四川成都610041

出　　处：《现代建筑电气》2021年第10期41-47,共7页Modern Architecture Electric

摘　　要：电涌保护器(SPD)是有保护距离要求的,并且与电压保护水平互相影响。梳理了常见的SPD品牌的电压保护水平,分析了保护距离与电压保护水平的理论关系,建立了民用建筑典型低压配电系统中SPD分析模型,通过分析I~Ⅲ类设备相对应的民用建筑内常见的弱电设备、家用电器、风机水泵和配电箱(柜)的不同特点,判断传统做法是否满足保护要求。分析结果发现,部分传统做法不满足规范要求,对于不满足要求的情况,通过计算和分析,给出合理设置的建议。Surge protection device(SPD)has the protection distance requirements and affects SPD setting with voltage protection level.This paper introduces the voltage protection level values of common SPD brands,and analyzes the theoretical relationship between protection distance and voltage protection level.The SPD analysis model of typical low voltage distribution system of civil buildings is established.By analyzing the different characteristics of common weak current equipment,household appliances,fan water pump and distribution box(cabinet)corresponding to class I~Ⅲequipment in civil buildings,it is judged whether the traditional method meets the protection requirements.The analysis results show that some traditional methods do not meet the requirements of the specification.For the cases that do not meet the requirements,the reasonable suggestions are given through calculation and analysis.

关 键 词：电涌保护器 振荡保护距离 感应保护距离 电压保护水平 设备绝缘耐冲击电压 经济性 

分 类 号：TU856[建筑科学]