Is the lightning rod insulated from the building it wants to protect? Why? The protected building is made of pure steel!
It is not insulated, but instead it is Unicom. It requires earthing. The lightning absorbed by the 4 ohm lightning rod is introduced into the earth through column steel or vertical steel structure. As far as steel bar and steel structure are concerned, concrete is protected by concrete
It is not insulated and must not be insulated. It should take advantage of the building's own release passage and ground.
No, because the lightning rod is grounded through the main steel bar.
