LWY: If SPDs are to be installed at more than one location in a building, what issues must be considered in coordinating the SPDs at building entrance and others connected to the same line?

• 如果在一幢大厦里不只一处安装SPD，大厦入口处的SPD和其他连接在同一条线上的SPD进行协调配合时，必须考虑什么因素？