家用电器的安装位置应尽量离开外墙或柱子远一点。还要注意经常定期检查家用电器所共同使用的接地线，大多数的家用电器的外壳几乎都与这条接地线相连，其主要目的是对人身安全起保护作用。当安装避雷器时，所有避雷器的接地都是与这条接地线相连的，如果这条接地线松脱或断开，家用电器的外壳就可能带电，避雷也无法正常工作。
Household appliances should be installed as far away as possible from the outside walls or pillars. Attention should also be paid to regularly check the common grounding wires used by household appliances. Most household appliances are almost connected with the grounding wires, whose main purpose is to protect personal safety. When a lightning arrester is installed, the grounding of all lightning arresters is connected with the grounding wire. If the grounding wire is loose or disconnected, the household electrical appliances may be charged and the lightning arrester can not work properly.