Lightning Protection: Shielding Against Electromagnetic Assaults
Outdoor LED screens are vulnerable to the strong electrical and magnetic forces induced by lightning during thunderstorms. To mitigate this risk, it's essential to install lightning protection systems on both the LED screen and the associated structures. This includes ensuring that the LED screen's body and casing are well grounded with a resistance of less than 3 ohms to safely discharge any induced current from lightning strikes.
Thermal Management and Cold Temperature Operation: Keeping Cool and Operational
The large surface area and high power consumption of outdoor LED screens can lead to significant heat generation. Poor heat dissipation can cause malfunctions or even damage to integrated circuits. To combat this, it's crucial to install cooling systems such as air conditioning or fans to maintain the internal temperature within the range of -10°C to 40°C. Installing axial flow fans at the back of the screen can help expel heat.
To prevent issues during winter, it's important to use industrial-grade integrated circuit chips that can operate in temperatures ranging from -40°C to 80°C. Lecede, a company with over 13 years of experience in LED screen production, offers an outdoor LED display billboard designed for extreme weather conditions. It features an IP67 waterproof rating, supports front and back maintenance, and boasts a brightness of 8000-10000 nits. The high-brim design shields against strong light, extending the screen's lifespan. Available in P6 and P9 pixel pitches, with a P4 version in development, this product is energy-efficient, with an ROHS certificate, saving up to 40% on power consumption. The module size is 1 by 1 ft., and custom sizes are available. We also have high and low-temperature test reports and waterproof test reports, with the theoretical working temperature range of -40°C to 80°C. Additionally, we hold the industry-coveted UL and ETL certificates.
Waterproofing and Moisture Resistance: Staying Dry in the Deluge
When designing and installing outdoor LED screens, it's imperative to use waterproof modules, power supplies, and箱体. All connections and junctions between the screen and the building must be watertight. The screen should have effective drainage systems to prevent water accumulation. The minimum protection rating for outdoor LED screens should be IP65/IP54 for the front and back, respectively.
Wire Selection: Ensuring Reliable Power Delivery
The larger the outdoor LED screen, the greater the power demand, and the more critical the stability of the wiring. Only wires that meet national standards can ensure safety and stability. Key requirements include copper wire cores, wire core cross-sectional area within the standard range, and insulation and flame retardancy of the rubber covering the wire cores that meet national standards. It's essential to use high-quality wiring to avoid significant losses due to substandard materials.
Considering the long viewing distances, wide fields of view, broad audience reach, and varying environmental lighting, especially direct sunlight, it's crucial to use ultra-bright light-emitting diodes. The display medium should be encapsulated in silicone to prevent metalization during assembly, offering protection against direct sunlight, dust, water, high temperatures, and circuit short circuits—the "five-proof" characteristics.