Effective Projected Area: Estimating Wind Loads For Camera Installations
Effective Projected Area: Estimating Wind Loads For Camera Installations
8 PagesEffective projected area, or EPA, is used to estimate wind-induced loads on outdoor camera installations, including the camera and its mount. The paper explains that wind load depends on wind speed, air density, frontal area, and drag coefficient, with wind speed having a major impact because it is squared in the drag force equation. Axis calculates EPA values using worst-case assumptions, setting the drag coefficient to 1 and using the largest cross section of the camera or mount. These values help installers choose suitable poles, mounts, bolts, and structures, especially for zoom cameras that may be sensitive to vibration in windy conditions. Source:
