2017 has entered November, the weather is slowly getting colder, and winter is getting closer and closer to us. In winter, the air is dry, which is a season for fires. With the rapid economic development, LED display screens have been widely used in our lives. So, do you know how to fire LED display screens in the winter when fires are high? Today, the editor will explain to you some tips on the fire prevention of LED displays in winter.  

 

The fire performance of the LED display is mainly related to the two aspects of the display fireproof raw materials and the quality of the cabinet. Therefore, when we are doing the fireproof work of the LED display, we should start from the raw materials of the LED display and the quality of the cabinet. Only by starting with quality and starting from the source can the occurrence of fires be prevented. The following factors affect the quality of fireproof raw materials for LED display screens.  

 

1. PCB circuit board factors: PCB circuit boards are classified according to the flame retardant characteristics. The UL-certified PCB circuit boards can ensure the transmission of signals and the safety and stability of the power load. Only when the supplier provides unqualified products, the PCB circuit board cannot carry the loadable current of the actual product, and it may also cause the problem of overheating and burning after long-term operation. Therefore, when purchasing LED displays, try to choose regular LED display manufacturers.

 

2. Plastic kit factors: The plastic kit is an important part of the fireproof raw materials for the LED display. Since it is mainly the material used for the bottom shell of the unit board module mask, the PC+glass fiber material with flame retardant function is used. . It not only has a flame retardant function, but also can be deformed, become brittle and cracked under high and low temperature and long-term use. At the same time, it uses glue with better sealing properties, which can effectively prevent rainwater from the external environment from penetrating into the interior, thereby avoiding fires caused by short circuits.

 

3. Wire factors: The larger the unit area of the LED display is, the greater the amount of electricity it uses, and the higher the requirements for the stability of the wire. Among many wire products, only wires that meet the requirements of the national standard can be used to ensure their safety and stability. These requirements must be met when selecting: First, the core must be a copper wire conductive carrier. Secondly, the core cross-sectional area tolerance is within the standard range value. Finally, the insulation and flame retardancy of the core rubber sheath must meet the standard.

 

4. Power factor: When choosing a power product, only a power product certified by UL is the best choice. Because its effective conversion rate can ensure the safety and stability of the power load, it can work normally even when the external environment temperature is hot.

 

5. The external protective structure material factors: it is particularly important to choose the external protective structure material of the LED display. Due to the low fire rating of the aluminum-plastic panel of general outdoor LED display products, it ages quickly with the impact of high temperature, rain, cold and heat, so that in the relatively humid weather season, rain and dew will easily penetrate into the inside of the screen, which is easy to cause Electronic components are short-circuited, causing a fire. Therefore, we have to choose aluminum-plastic panels with a higher fire rating on the market, so that the fire resistance is excellent, the fire and flame retardancy is strong, and the oxygen aging performance of the core material special material is also strong, in order to avoid the occurrence of fire.

 

6. Power terminal factors: Most of the LED displays are distributed from Guangdong and Fujian to all parts of the country. After long-distance bumps, the terminals of the LED display modules have gradually become loose. During installation, if the engineer does not pay attention to checking or tightening the crimping terminal, resistance will be generated due to its poor contact, which will cause the terminal to heat up and be conducted to the wire, which will first cause the wire to scorch and burn. Therefore, it is a very important job to install the LED display certification check terminal.

 

In summary, when purchasing an LED display, the quality of the raw materials must be placed on the core assessment indicators. The quality of the raw materials is excellent to effectively prevent the risk of fire during the operation of the LED display.