Method for setting roof lightning protection grid
The height of the lightning rod, the length and width of the building, and the surrounding environment. If you know the formula of the radius of the ball, you can calculate it. Both the lightning rod and the lightning rod are mine. Used for lightning, the role of lightning current is rapidly discharged into the earth. Therefore, the choice of lightning belts, lightning rod is not a problem. Attention: the metal of the prominent roof, such as solar energy, water tank and irrigation column, is well grounded. Equipotential bonding is performed. You may be very troublesome if you want to do it yourself. Specific practice, I can tell you, the specific construction depends on you.
If the line is drawn separately, the 10 round bar (national standard is 8) or 40*4 hot plated flat iron can be used. If the lightning conductor is grounded alone, the ground resistance must be less than or equal to 10 ohms. If the spire is a lightning belt, it can be used as a lightning rod on the roof of the platform or on the ground.
Lightning (lightning, lightning, lightning line with obstacle) choice, generally chosen according to the characteristics of the building, such as building roof steel structure is flat, can be used to choose Phi 10 hot dip round steel as lightning belt along the parapet around incidentally enough, if lightning grid, civil building lightning protection grid interval 20*20m or 16*24. The lead wire can be connected with the main steel bar, and the earthing resistance of the earthing joint must be less than or equal to 1 ohms.
