How to determine the expiration or damage of the life of lightning protection products?
For example, this type of product has an indicator light. When the indicator light goes out, it means that the product has to be replaced.
Like the following figure, with LCD screen, how to judge whether it is good or bad? Is there an LCD screen?
The LCD screen is usually without any display, under normal circumstances, through the LCD window to see the inside is green, if one day sees become red, indicating that the product to be replaced.
The commonly used lightning arresters are divided into two major categories: First, the power supply lightning protector, also known as the power supply lightning protection module, the surge protector, the power supply arrester, etc. The second is: the signal lightning protector, including the video lightning protection, Network lightning protection, 485 data lightning protection, monitoring lightning protection, etc. However, these products, how to distinguish whether it works?
Take the signal lightning protector as an example: The signal lightning protection is generally divided into various signal lightning protection modules according to the function of the protected object. Commonly there are video BNC lightning protection, network RJ45 lightning protection, 485 control signal lightning protection, and monitoring three. One lightning protection, monitoring of lightning protection, and so on.
The signal lightning protection device is generally also equipped with an indicator light. The normal operation is a green light, which means that if the light goes out, it will turn into a red light. It means that the product needs to be replaced. The remote alarm function can also be installed. The signal lightning protector is relatively easy to judge with respect to the power supply lightning protector. The power supply is generally installed in parallel. Even if it is broken, it does not affect the work of the power supply line, and the signal protection Thunder is generally installed in series. If it is broken, the signal will not work, affecting the normal operation of subsequent equipment. For example, the network will not work, the video will not see the image, the elevator will not be controlled, and so on. This is a series of problems caused by signal lightning damage. Replace it well.
Lightning protection is generally divided into three-phase lightning protection module and single-phase lightning protection module, which is 380V lightning protection products, 220V lightning protection products, as well as DC type, DC lightning protection module. Many products, mainly installed in front of power distribution cabinets and other facilities.
Above the lightning protection module of the power supply, there is usually an indication window. If the window is green or colorless under normal working conditions, only when the window is displayed in red, it indicates that the product is aging and needs to be replaced. Of course, if the product with remote signaling is installed and the product fails, an alarm will be provided.
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