Full-color LED display screen fire prevention knowledge Published：2018-09-04
Full color LED display, its structure includes external display, internal wiring, plastic kit, external protection and so on. Because of the complexity of its structure, the display still has a lot of work to do in terms of fire prevention. Let me introduce you here.
First, wire quality: In most LED display applications, the larger the unit area of the display, the greater the power consumption, the higher the requirements for wire power stability. Among the many wire products, the wire that meets the national standard can guarantee its safety and stability. There are three requirements: the wire core is a copper wire conductive carrier, the wire core cross-sectional area tolerance is within the standard range value, and the rubber core of the wrapped wire core is insulated. The properties and flame retardancy reach the standard. Compared with the general copper-clad aluminum wire core, the wire core cross-sectional area is small, and the insulation rubber grade is not enough, the electric current performance is more stable, and the short circuit condition is not easy to occur.
Second, the power quality: UL certified power supply products are the best choice for the purchase of full-color LED display power supply, its effective conversion rate can ensure the safety and stability of the power supply load, can also work normally under the external environment temperature .
Third, full-color LED display external protective structure material: LED display products with high fire-proof grade on the market are mostly made of fire-resistant aluminum-plastic board, which has excellent fire resistance, fire retardant and strong flame retardant, and oxygen-based aging of core material. The performance is also very strong, melting point temperature 135 ° C, decomposition temperature ≥ 300 ° C, environmental performance, low smoke and halogen free, in line with SGS flame retardant B-S1, d0, t0, reference standard UL94, GB/8624-2006. The aluminum-plastic panel of the general outdoor LED display ages faster with the high temperature and rain and cold heat, so that in the relatively humid climate season, the rain dew easily penetrates into the screen body and causes short circuit of the electronic component to cause fire.
Fourth, plastic kit: full color LED display video panels plastic kit is mainly used for the unit module mask bottom shell. The main raw material used is PC+ glass fiber material with flame retardant function. It not only has flame retardant function, but also can be deformed at high and low temperature and long-term use without cracking and cracking, and combined with good sealing glue. It can effectively block the rainwater from the external environment from penetrating into the interior and causing a short circuit to cause a fire.