What should be paid attention to when using waterproof switching power supply

The application scale of waterproof switching power supply in the field of public lighting is increasingly extensive. In practical applications, this new waterproof switching power supply not only has the advantages of constant current drive and cold light lighting, but also has very high safety. It has become the S choice of domestic public lighting equipment. So, what problems do you need to pay attention to in the actual use of this waterproof switching power supply?

In the process of using waterproof switching power supply, D needs engineers to pay attention to the problem of self temperature rise of switching power supply. Generally, the temperature rise of power devices with good power supply description will be kept at about 25-30 ℃, while the temperature rise with poor description will be greater than 35 ℃. The switching power supply used in public lighting and outdoor lighting places needs to be waterproof, and the sealed shell should be selected. In order to advance the protection level, manufacturers need to inject glue. Different colloidal materials have different prices, costs and heat conduction functions. Cheap glue has poor heat conduction, and needs to be baked at high temperature, which often leads to different degrees of hidden damage and tight tension of components, leaving dangers.

The temperature rise of the lamp itself is also a big problem that needs to be paid attention to when waterproof switching power supply is used in public lighting. Because many heat generated depends on the shell itself to dissipate heat, it is reasonable to describe the lamp, and its shell temperature is about 20 ℃ - 25 ℃. That is to say, it is normal that the temperature of the lamp shell is about 45 ℃ - 50 ℃ under the operating condition of 25 ℃ room temperature. If this indicator scale is exceeded, it will clarify that the product has defects in temperature rise.

One problem to be noted here is that the life of the electrolytic capacitor of the switching power supply will be halved every time the temperature of the capacitor rises by 10 ℃, which will directly affect its service life. At present, there are also relevant domestic technicians who have proposed whether ceramic or solid capacitors can be used in the lighting field, but with the capacitor technology at that time, neither of these two capacitors can be made into high-voltage and large capacity, which is a pity. However, the use of long-lived capacitors may not ensure the life of the power supply. To increase the life of the power supply, it is necessary to improve it in many ways, such as using capacitors with a higher life, advancing power supply, optimizing the heat dissipation profile of the power supply or lamps.