With the rapid development of information technology such as the Internet, the propaganda effect of advertising media has received more and more attention from the society. LED display screens are widely used in squares, transportation, commercials due to their high brightness, long life and low power consumption. Waiting for public occasions. LED display development From the past to today, fire incidents occur frequently, such as the third-level fire in Hong Kong Haiyi Junyi Hotel on April 21, 2012; at 9:00 on October 27, 2013, Guangzhou Baiyun Airport Terminal Hall Suddenly on fire; at about 7:00 am on June 10, 2015, the LED display and billboards on the post office building of the Hubin North Depot of Sanmenxia Yellow River Road caught fire, causing a large fire in the entire building... Now the weather is getting hotter The temperature is also getting higher and higher. We have to learn from the past and learn more about outdoor large-screen fire prevention to prevent the accident from happening again.
First of all, whether the display is installed or not is particularly important for the safety of the display. If there is no ventilation and heat dissipation during the installation process, it may catch fire due to overheating. In addition, if there is no lightning protection device during the installation, the lightning will be caused. The large current caused cannot be released in time and may cause a fire. At the same time, during the use process, the use process is not strictly observed, and the display is not regularly maintained, and regular maintenance may cause fires caused by the display. Therefore, in order to prevent fires caused by unreasonable installation and use of the display screen, the installation should be guided by the manufacturer at all times, and the professional should be regularly inspected.
Secondly, the material composition of the display is also an important reason for the safety of the display. In order to reduce the procurement cost of raw materials, many manufacturers do not follow the standards for the selection of materials. There are also many raw materials that do not meet the requirements of the regulations. For example, the kit materials do not pass the fire retardant requirements of the "UL94V0" standard; the potting glue does not pass the fire retardant requirements of the "ULE325549V0" standard; the wire does not use the national standard wire, the wire wrapping material does not Passing the fireproof and flame retardant requirements of the "IEC60332" standard... This series of factors are the important reasons for the fire on the display. Therefore, the display manufacturers must strictly control the selection of materials, putting the quality and safety of the products in the first place. .
Finally, technical flaws can also cause the display to catch fire. If the cabinet wiring does not meet the wiring principle, the power supply distribution of the module is unbalanced. Therefore, in the hot summer, in order to prevent the outdoor large-screen fire should strictly follow the screen installation specifications, manufacturers strictly select materials, select the quality of raw materials passed through the verification, while avoiding technical flaws, so that the display of the fire "prevent the problem Burning."
Editor: Yingzi
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