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What is the cause of the fire of the led display?
by：Demo
2021-07-13
On the evening of April 8, 2017, an external LED display in a hotel in Jinzhou City caught fire.
At about 9 o'clock on October 27, 2013, a store in the Guangzhou Baiyun Airport terminal suddenly caught fire. The scene was filled with ashes and the fire continued to spread. The security checkpoint in Zone B was blocked, and the late baggage check-in area near Zone B was closed and unavailable. . According to Baiyun Airport, at 9:13 am on October 27, a fire broke out on the outside of a shop in the departure hall of Baiyun Airport. It was initially determined that a short-circuited LED display wire in the departure hall caught fire.
On December 16, 2011, a fire broke out in the Xizhimen shopping mall in Beijing. It was caused by improper construction of the LED display. At the end of the same month, the LED display of the Traffic Building in Yueqing City, Zhejiang Province also caught fire. Fortunately, no people were caused in the two accidents. casualties.
So what caused the fire accidents of so many led display screens? Let’s take a look at the following points:
1. The wire rods on the market can be said to be of uneven quality. Many of the low-quality wire rods are made of copper clad aluminum. The appearance looks like copper wire, but in fact, it is mainly aluminum alloy. This kind of wire can only be used as a temporary wire. There is no way to use it on regular products.
3. The material of the led pcb board is inferior, the design is unreasonable, and the craftsmanship is poor, resulting in burrs on the copper wire, which eventually causes a short circuit, which is the main cause of fire.
At about 9 o'clock on October 27, 2013, a store in the Guangzhou Baiyun Airport terminal suddenly caught fire. The scene was filled with ashes and the fire continued to spread. The security checkpoint in Zone B was blocked, and the late baggage check-in area near Zone B was closed and unavailable. . According to Baiyun Airport, at 9:13 am on October 27, a fire broke out on the outside of a shop in the departure hall of Baiyun Airport. It was initially determined that a short-circuited LED display wire in the departure hall caught fire.
On December 16, 2011, a fire broke out in the Xizhimen shopping mall in Beijing. It was caused by improper construction of the LED display. At the end of the same month, the LED display of the Traffic Building in Yueqing City, Zhejiang Province also caught fire. Fortunately, no people were caused in the two accidents. casualties.
So what caused the fire accidents of so many led display screens? Let’s take a look at the following points:
1. The wire rods on the market can be said to be of uneven quality. Many of the low-quality wire rods are made of copper clad aluminum. The appearance looks like copper wire, but in fact, it is mainly aluminum alloy. This kind of wire can only be used as a temporary wire. There is no way to use it on regular products.
2. Use low-quality power supply, or low power, or long-term overload operation of the power supply.
3. The material of the led pcb board is inferior, the design is unreasonable, and the craftsmanship is poor, resulting in burrs on the copper wire, which eventually causes a short circuit, which is the main cause of fire.
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