When the lightning rod is set at a height of 36 meters, what is the protection radius of the lightning rod at the height of 9 meters?
Calculation of protective radius of lightning rod at 9m height:Protection radius = (1.5 lightning rod height, -2 calculation height) X height influence coefficient = (1.5X36-2X9) X0.9166=33 (meters)
When the lightning rod height more than 30 meters, the height of the influence coefficient of P=5.5/ h=5.5/ (36) =0.9166 tick tick
