22M high metal chimney needs to be added with lightning rod
Metal ladders for chimneys and chimneys can be used as leads, but all of their components should be connected to an electrical circuit.
Of course, to the underground, so that must be linked to the structure of steel, otherwise how to import electricity to the ground? And what you want to mention is that the structure of a building is good if it's a frame. Otherwise, it's just a decoration.
A chimney with a height of not more than 40 meters may be provided with a leading off line, and a chimney over 40 meters shall have two leads. When the chimney is provided with metal components such as an aerial obstruction lamp, it shall be connected with the lead out lineReinforced concrete shall be reinforced with lead off Necklace
