摘要
详细分析SPD基于"防反击"和基于"防雷区"的级配架构,并探讨分析在多种特定条件下装设SPD的必要性。最后给出结论:在低压配电系统内安装SPD的必要性是"共地"建筑内重要敏感设备的电涌防护必须也只需"防反击+附加保护"两级SPD;只有经风险评估或以"特有规范规定"替代风险评估时,才有必要也只要安装三级SPD。
The gradation structure based on“anti-counterattack”and“lightning protection area”of SPD is analyzed in detail,and the necessity for installation of SPD under various specific conditions is discussed.Finally,it is concluded that the necessity for installation of SPD in low-voltage distribution system is that the surge protection of important sensitive equipment in“common ground”building must and only need two-stage SPD of“anti-counterattack+additional protection”;and it is only necessary to install a three-level SPD if the risk is assessed or the risk assessment is replaced by a“specific regulation.”
作者
洪友白
HONG Youbai(Xiamen Hordor Architecture&Engineering Design Group Co.,Ltd.,Xiamen 361006,Fujian Province,China)
出处
《建筑电气》
2018年第11期26-33,共8页
Building Electricity
关键词
电源SPD
级配
防反击
防雷区
敏感设备
附加保护
协同配合
安装必要性
SPD of power supply
gradation
anti-counterattack
lightning protection area
sensitive equipment
additional protection
synergistic collaboration
necessity of installation
