In recent years, due to the popularity of the advertising industry, the number of LED light boxes has doubled, but the quality of the light boxes is uneven, and the incidents of light box fires continue to occur, which has caused widespread concern among light box advertising practitioners. According to the engineer's investigation and analysis, the specific reasons for the fire of the light box are as follows: the wire is too thin, the line is overloaded, the wire is aging, and the line is short-circuited. The following reasons will be analyzed in detail.

Analysis of several reasons for the fire of LED light box

1. The wire is too thin and the line is overloaded

Every square wire has a safe current carrying capacity that it can carry. If the current passing through the wire exceeds its safe current carrying capacity, it will cause the wire to generate a lot of heat instantly, which will cause the wire to catch fire, such as the LED light box roller blinds currently on the market. Most of the power cords used by the lights are 0.75mm? 6W to 20W range. If the 0.75mm?2; line is used, the main line needs to be connected frequently. Once the main line is not connected, the circuit is overloaded, and the wire has a large current passing through it for a long time, which will easily cause the rolling shutter lamp to burn and catch fire. The use of LED light box is not understood, the main line adopts 0.75mm? 2; line, resulting in a great safety hazard in the later use of the LED light box.

2. Fire caused by line short circuit

The short circuit of the line is also the main reason for the fire of the LED light box roller shutter lamp. The short circuit of the line is mainly because the transmission line is used for a long time, the insulation layer is aging, cracked, and the insulation effect is lost, causing the two lines to collide; Mechanically damage the "jacket" of the wire, causing a short circuit. If the wires used are relatively thin and the main wires are frequently connected, the wires are entangled during the wiring process, which may cause a short circuit for a long time. Therefore, in the wiring, we must pay attention not to randomly pull, connect, or add electrical devices indiscriminately, and increase the power load of the entire line of the LED light box.

3. The use of inferior wire, the quality is not up to standard

The cross-sectional area of the national standard wire produced by regular enterprises is sufficient, while the cross-sectional area of the national standard wire produced by those informal enterprises is often insufficient, and the LED light box uses these low-quality wires that cut corners (pull the wires very thin, use inferior second-hand wires) Copper) will cause the insulator to break, which will cause short circuit, line blown, and even cause serious consequences such as LED light box fire.

The above is a simple analysis of the reasons that affect the fire of LED light boxes. If you need more detailed product information of LED light strips, please consult Shenzhen SUNLITE Optoelectronics Co., Ltd. Shenzhen SUNLITE Optoelectronics Co., Ltd. is a company dedicated to LED light box lighting, logo A high-tech enterprise engaged in the research and development, production, sales and service of lighting and decorative lighting products. Our website is http://en.sunlite-led.com, welcome to consult.