Wiring of lightning protection network on the roof of a multi-story residential building

The wiring of multi-story residential roof lightning protection net (strip) is shown in Figure 20-28. Use dlOmm galvanized round steel as the lightning protection net,
150mm higher than the gutter and the back of the house; use 3mm×30mm galvanized flat steel as the lightning protection net support card. The distance between cards is Im;
+12mm galvanized round steel is used as the lightning protection down conductor, and a wall-hole disconnecting clip (test card) is set 0.5m above the ground.