On May 30, a large display screen in Malaysia caught fire during construction. The accident may have caused losses worth millions of yuan. It is understood that three of the nine technical personnel on the project were trapped. Most of the construction workers were from Indonesia. The personnel have been sent to the hospital with minor injuries. The specific cause of the fire is still unclear. Fires are fiercer than tigers. Every accident that occurs in the LED display screen should attract the attention of the industry. Whether it is a "natural disaster" or a "man-made disaster", we should strictly treat every product standard and every construction specification in order to do Take precautions before they happen! Before the screen lights up, the fire breaks out first. Who is responsible? Fire accidents caused by LED display screens occur almost every year. The LED itself generates a certain amount of heat when working. If the ambient temperature is too high and the heat dissipation is poor, the integrated circuit can easily become abnormal, causing a fire. However, the large screen that caught fire this time was different from previous accidents. The screen had not even been put into use. An accident occurred during the installation phase alone. Millions of dollars were wasted. The construction safety is worrying. This also reflects the LED The display industry is in urgent need of regulation. There are many possible reasons for this accident. First, the circuit design is unreasonable. During the use of the LED switching power supply, the power supply catches fire due to short circuit, or the power supply is damaged due to overloading. The second is due to improper operation by construction personnel. It is not yet clear whether the relevant construction personnel mentioned above are certified to work. Before installing and debugging the display screen, technicians should check whether the cables and wires are properly connected. If the operation is not standardized, especially the use of open flames or smoking, it is more likely to cause a fire on the spot. The third reason is the climate. Malaysia is located in the tropics, and the climate is hot all year round. More importantly, Malaysia has recently been experiencing a strong heat wave. The temperature continues to soar. In some areas, it has even reached over 35 degrees Celsius, and in some places it has exceeded 40 degrees Celsius. Therefore, there are many hidden dangers in construction in this kind of weather. It can be seen that this column-type screen has a large area, which should ensure enough space for air conditioners and fans. Moreover, in this extremely hot environment, the LED display screen is working continuously every day. The heat dissipated is huge. If air conditioning is not installed to save costs, there will be considerable hidden dangers in future use. The fourth is the use of substandard counterfeit and shoddy products, including power supplies, wires, and screen modules. As LED products exported overseas, they should be formal and comply with various standards. In terms of construction, some contractors reinstall used power supplies in new projects, increasing safety risks; some wire manufacturers cut corners and use copper-clad aluminum as fake copper wires, increasing fire risks; and in terms of screen materials , including PCB boards, unit module kits, etc., should be made of flame-retardant materials to avoid the threat of high temperature from the source. Choose a regular team to build a safe line of defense together The implementation and lighting of an LED display screen is a long-term project that requires the participation of many parties. Safety management is the core and focus of the entire project. Safety management is an important part of ensuring the quality of project construction, the health of workers, and maintaining social stability. important measures. LED display companies should choose qualified engineering contractors to cooperate. They must be open, transparent and strictly enforce the construction safety management system, project start-up safety work procedures, safety construction standards, safety construction specifications, etc. to ensure the effectiveness of safety management. sex. The installation of outdoor LED display screens is generally divided into four links: on-site survey, equipment construction, product installation, and product debugging. Safety and refined operations must meet the first requirements. Generally, outdoor LED displays have a large installation area, and are mostly installed in places with densely populated areas. The design of the steel structure must consider foundation, wind load, waterproofing, dustproof, moisture-proof, ambient temperature, lightning protection, surrounding population density, etc. factor. At the same time, the steel structure also needs to place power distribution cabinets, air conditioners, axial fans, lighting and other auxiliary equipment, as well as maintenance facilities such as horse paths and ladders. Therefore, during implementation, the entire outdoor screen steel structure should have design drawings that have been reviewed and approved by the competent government department to ensure the reliability and safety of the entire steel structure. Outdoor LED displays are installed outdoors, often exposed to the sun, rain, wind and dust, and the working environment is harsh. Therefore, the screen body and the joint between the screen body and the building must be strictly waterproof and leak-proof; the screen body must have good drainage measures. If water accumulation occurs, it can be drained smoothly; pay attention to waterproofing and moisture-proofing. Outdoor LED displays should be equipped with ventilation equipment to cool down, and lightning protection devices should be installed on the display and the building. Finally, for smooth delivery, subsequent inspection and maintenance are essential. Follow-up inspections include LED display waterproofing, heat dissipation layer, LED display waterproof coating, rain-proof area on the display screen, heat dissipation spaces on both sides, power supply lines, etc. These basic components and products constitute the entire LED display screen. Regular inspection and maintenance in the later period is also very important. These parts must be managed and maintained in a unified manner. When the product is rusty, unstable, or damaged, it needs to be replaced in time to ensure the safe use of the entire display. Only by nipping the above factors that can induce LED display fires in the cradle can we truly avoid and reduce the incidence of display fire accidents. At the same time, all participants in the LED display project must work together to build a security line of defense and protect people's lives and property.