The lighting column with assembled extension arm, luminaire or other equipment during exploitation is loaded by its own weight and from wind pressure. As a result of these loads, the column is subjected to the following:
• resultant force from wind pressure, which is hooked at a certain height, closer to the top of the column (F),
• bending moment, which is the largest in the plane of the column base-plate (BM),
• the torque that occurs for a column equipped with an asymmetrical extension arm (T)
These loads must be taken over by the concrete footing embedded in the ground.