Based on the aviation warning function of obstruction lights, the following outlines a general installation process compliant with current civil aviation standards, suitable for common tall structures such as chimneys, high-rise buildings, and towers:
Preliminary Preparation
Compliance Verification: Select light fixtures with the appropriate intensity based on the structure's height: low-intensity red lights for structures under 45 meters; medium-intensity Type B flashing red lights for 45–105 meters; and medium- or high-intensity models for structures over 105 meters (upgrading as per regulations). The vertical spacing between light levels must not exceed 45 meters.
Material and Equipment Check: Prepare obstruction lights of the required intensity, hot-dip galvanized stainless steel brackets, flame-retardant cables, and grounding flat steel. Also, prepare specialized tools such as aerial work platforms, torque wrenches, and earth resistance testers.
Safety Prerequisites: Personnel performing work at heights must hold both an aerial work permit and an electrician's certificate. Construction is prohibited during thunderstorms or high winds (Force 5 or above). Rigid safety barriers must be set up below the work area, and a dedicated safety monitor must be assigned.
Step-by-Step Installation
Positioning and Layout: Use instruments to mark the installation elevation for lights at each level on the structure's body. Distribute lights evenly around the level, ensuring they extend at least 0.5 meters outward from the exterior wall and avoid obstructions such as access ladders or lightning protection strips.
Bracket Mounting: For new structures, prioritize welding the brackets to embedded steel plates. For existing structures, use certified chemical anchor bolts for post-installation. Equip all bolts with anti-loosening washers and apply anti-corrosion/anti-rust treatment to all welds.
Wiring and Commissioning:Connect power and synchronization signal lines according to standards, ensuring waterproof connections. Upon completion, test the light-sensing automatic on/off function and the synchronized flashing capability, ensuring there are no 360-degree lighting blind spots.
Lightning Protection and Grounding: Reliably ground all metal brackets and housings. The grounding resistance must be ≤10Ω, complying with the GB50057 lightning protection standard.