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Key Considerations for Installation of Outdoor Steel Structure LED Cabinets

5 views admin 2025-11-21

The installation of outdoor steel structure LED cabinets requires comprehensive consideration of various factors, including structural safety, waterproofing and moisture protection, ventilation, and heat dissipation. Below are the key considerations:

1. **Steel Structure Design and Construction Specifications**

- Steel structure design must comply with the *Code for Design of Steel Structures* and the *Code for Construction and Acceptance of Steel Structures*. Factors such as wind load, foundation bearing capacity, and the surrounding environment should be fully considered to ensure structural stability. Design drawings must be reviewed and approved by relevant government authorities.

- **Material Selection**: Prioritize the use of high-strength, corrosion-resistant steel materials such as square tubes, channel steel, and H-beams to ensure structural reliability.

- **Construction Precision**: Welding errors should be controlled within 4mm. Component dimensions must be calibrated before processing, and preheating techniques should be applied during welding to minimize deformation.

2. **Waterproofing and Moisture Protection Measures**

- **Cabinet Sealing**: Use EPDM rubber sealing strips at cabinet joints. Ensure adhesive layers are continuous and uniform during application, with a thickness of ≥3mm. Drainage holes should be reserved at the bottom of the cabinet to prevent water accumulation.

- **Joint Treatment**: Use neutral silicone sealant to seal joints between cabinets and cable interfaces. Power and signal cable interfaces should be equipped with waterproof connectors rated IP67 or higher.

- **Overall Protection**: Install a rain shield at the top of the display panel and elevate the bottom by at least 30cm to prevent water backflow.

3. **Ventilation and Heat Dissipation Design**

- **Heat Dissipation Equipment**: Install axial fans at the upper rear of the display panel. The number of fans should be reasonably configured based on the display area to ensure the internal temperature remains within -10°C to 40°C.

- **Ventilation Channels**: Reserve adequate ventilation space inside the cabinet to prevent circuit malfunctions caused by poor heat dissipation.

4. **Lightning Protection and Grounding**

- **Grounding Resistance**: The main body and外壳 of the display must be properly grounded, with a grounding resistance of less than 3 ohms.

- For standalone installations, grounding resistance should be ≤4 ohms; for installations attached to buildings, it should be ≤1 ohm.

- **Lightning Protection Devices**: Install lightning rods or lightning belts to ensure timely discharge of lightning current.

5. **Installation Process Details**

- **Cabinet Flatness**: Check the flatness of the cabinet before installation. Use a leveling tool during installation to adjust, and place 0.1–0.3mm thick paper or metal shims at the bottom to ensure levelness.

- **Module Installation**: Pay attention to process gaps during module installation to avoid virtual soldering of LED beads caused by excessive pressure. Use combination screws for fixation, apply moderate torque, and start by tightening the middle screws for positioning.

- **Connector Selection**: Avoid using connectors such as dove-tail nails that may damage the waterproof structure. Prioritize standard installation accessories.

6. **Safety and Maintenance**

- **Construction Safety**: Wear safety helmets and harnesses during. Scaffolding must be set up in compliance with regulations.

- **Regular Maintenance**: After installation, regularly inspect the steel structure for rust and the effectiveness of waterproof seals. Promptly repaint with anti-rust paint and repair damaged sealant.

more articles：sunriseleddisplay.com/analysis-causes-insufficient-brightness-led-displays/

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