How to connect aluminum alloy and copper strip for curtain wall lightning protection

1. Select materials according to the requirements of drawings, and adopt galvanized round steel with a diameter of Ф12mm and stainless steel lightning arrester with a thickness of1mm..

2. Galvanized round steel shall be overlapped with the lightning protection points reserved in the horizontal and vertical main structures, and the length of double-sided welding shall not be less than 80 mm ..

3, every three layers should be added with a circle of transverse closed lightning rod, and should overlap with each embedded part.

4. At the joint of each big corner and vertical lightning rod, galvanized round steel Ф12mm should be used for lap joint.

5. Set a circle of closed lightning rod at the parapet and tower top of each floor of the main building, overlapping with the vertical lightning rod of the curtain wall.

6. The vertical lightning rod on the first floor is overlapped with the grounding flat iron of the main structure, and the overlapping length is 80mm, which is welded on both sides.

7. Stainless steel lightning arrester is used to connect the joint of aluminum column and steel column and the telescopic part of vertical seam of each column.

8. When installing lightning arrester, use angle grinder to clean the coating on the surface of aluminum profile and galvanized steel, so as to ensure full contact of lightning arrester and achieve conductive effect. The contact surface should be smooth and fixed with four M5 * 20mm self-tapping nails.