For the lightning protection of surveillance cameras, induction lightning is generally considered, after all, there are not many opportunities to be hit by direct lightning.
Induction lightning should be installed according to whether there is 485 control line and the distance between transformer and camera.
For direct lightning, the lightning rod should not be installed on the vertical pole of the camera itself, so if direct lightning strikes, it will often damage the arrester and equipment at the same time because of the powerful energy of direct lightning.
Therefore, if direct lightning protection is to be considered, a lightning rod should be installed independently at a certain distance from the camera, and the grounding net of the lightning rod should be insulated from the vertical pole of the camera. The camera should be protected by lightning rod.