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The Need For Lightning Protection Of LED Street Light
- Sep 22, 2017 -

Street lamps are the main customers of government units, rather than ordinary consumers, and thus is a more special, relatively closed industry. Street lights from the initial sodium lamp, mercury lamp to the current LED lights, after a long process of development, at the same time, in the development process encountered some technical problems.

Today, LED lights in the country has been about 10 years, including power supply, power supply, cooling technology, optical technology and other new breakthroughs every year, and some basic technology in the country has not been resolved, LED lights Lightning protection is one of the problems to be solved.

The Need for Lightning Protection of LED Street Light

Lightning is an electrostatic discharge phenomenon, usually carrying millions of volts of voltage from the clouds to the ground or another cloud. During the transmission, the lightning will generate an electromagnetic field in the air, inducing the kilovolt voltage (ie surge) to the power line and generating an induced current to a few miles away. These indirect attacks usually occur in outdoor exposed wires such as street lamps , Traffic lights, base stations and other equipment to launch surge. Surge protection module is directly facing the front of the circuit from the power line surge interference. It will surge energy transfer or absorption, to minimize the threat of other working circuits, such as LED lighting in the AC / DC power supply unit and other equipment.

For LED lights, lightning generated in the power line induction surge, the surge of energy in the wire will produce a surge, that is, the surge wave, the surge is through such a way to carry out the sensor, the outside world to a surge Wave, it will be in the 220V transmission line in the sine wave to produce a tip, the tip into the street, it will damage the LED street lamp circuit.

Street lights have been there for many years, why now put the street lights need to mine this thing? In fact, in the past the use of high pressure sodium lamp and the traditional mercury lamp is designed with high pressure bulb, which itself has the effect of lightning protection. In recent years, LED lights gradually popular, LED lights need to supply voltage is small, usually using the power supply to convert AC power to DC drive, which makes the LED street light itself is not mine, and therefore need to design for the street Lightning protection module.

The importance of lightning protection is determined by the concept of investment payback period. As the LED lights than the traditional street lights about twice the price, the government at the beginning of the purchase of a larger amount of investment, so the need to save money in the operation of the process to gradually cost to earn back, therefore, LED lamp life is very important. If the LED lights have not earned back the cost of the investment recovery period is broken, but also need to spend money to repair, repair the cost of labor to pay more than double when installed. Thus, in the LED era, to achieve LED power, save money, you need to ensure that its life can meet your expectations, that is, product shelf life is long. To achieve cost savings, to ensure that the investment recovery period is not damaged, you need to pull the reliability. This requires the LED lights with lightning protection module, in order to achieve economic maximization.