What are the materials used for the lightning rod?
The lightning rod adopts garden steel or steel pipe, the length of the needle is 1m or less, the diameter of the round steel is 12mm, the steel pipe is 20mm, and the pipe wall thickness is greater than 3mm. The length of the needle is 1~2m: round steel is 16mm, steel tube is 25mm, pipe wall is larger than 4mm
The basic requirement is that the conductive resistance is small, not easy to rust, easy to process and fixed, in addition to beautiful economy. Stainless steel is recommended.
