The uninterruptible power supply is because it works in a suitable environment, which not only makes the machine run stably, but also prolongs the service life of the machine. Therefore, it is very important for UPS power supply to perform routine maintenance. The working environment of the UPS must be the same as that of the computer, the temperature must be controlled above 5°C and below 22°C, the relative humidity must be controlled below 50%, and the amplitude of fluctuation should not exceed 10%. Of course, just as important as these factors, the UPS room must be kept clean and free from dust, pollution and harmful gases, as these factors also affect the life of the UPS and may lead to failure. In daily UPS maintenance work, engineers have to carry out daily routine inspections. An important goal is to gain experience with the operation of UPS power supplies and to detect signs of failure over time. Therefore, daily routine checks should be considered.

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