In thunderstorm weather, if the lightning strikes the signal light, it will cause its failure. In this case, there are usually signs of burning. The high temperature in summer will also cause damage to the signal lights and cause malfunctions. In addition, the aging of signal light line facilities, insufficient wire load capacity, and man-made damage may also cause signal light failure.
Since LED traffic signal lights are mainly used outdoors, they are sometimes damaged by lightning strikes. So how should we prevent the LED traffic signal light circuit from being damaged by lightning?
An important accessory that causes LED traffic signal lights to be exposed to lightning hazards is the signal control machine that controls LED traffic signal lights. Then the culprit that caused the problem of the signal control machine that controls the LED traffic signal lights is the weather! During the thunderstorm season, it rains for a long time every day, accompanied by thunder and lightning. So, how can we prevent this from happening? Experienced construction workers generally weld a two-meter-long steel bar on the flange at the bottom of the light pole after installing the traffic signal light pole, and bury it in the ground. Play the role of lightning rod, can effectively reduce the harm of lightning strikes.
Another method is to combine external lightning protection with internal lightning protection. The external lightning protection system refers to the conductive material on the outside of the traffic signal light. It is equivalent to a lightning rod itself, and at the same time, it is also designed to install a down conductor and a ground grid. The internal lightning protection system refers to the protection of the equipment inside the road traffic signal lamp by grounding and setting voltage protection. The two are complementary and complementary to each other, so as to achieve the effect of effective lightning protection.
In hot weather, LED traffic signal lights also have certain problems. High temperature tends to age the light source of the signal light, which may cause the light to turn yellow or lose brightness, making it difficult for drivers to see the signal light. In addition, the high temperature may also cause damage to the circuit system of the signal lamp, which may cause the signal lamp to fail. In order to ensure the normal operation of traffic lights at high temperatures, protective measures need to be taken, such as installing sun visors, ventilation facilities, etc. At the same time, it is necessary to keep the lights clean and replace light sources that are suitable for high temperatures.
Precautions:
Do not rely on pillars, walls, doors and windows, or stand directly under electric lights during lightning, thunder, and wind and rain to avoid accidents caused by induced electricity during thunderstorms. Don’t take shelter near the electric pole under the big tree, and don’t walk or stand in the open field. Hide in low-lying places as soon as possible, or find a dry cave to hide as much as possible. If you see a high-voltage line being broken by a lightning strike outdoors, you should be vigilant at this time, because there is a step voltage near the breakpoint of the high-voltage line, people in the vicinity must not run at this time, but should put their feet together and jump away from the scene.
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Post time: Aug-04-2023
