Since the current overvoltage manufacturers in the market are mixed, good and bad, so you must be particularly careful when choosing. I will give you a few suggestions:
1. First, you must understand the scale of the factory. , such as registered capital, etc. Most manufacturers are leather bag companies. When choosing a manufacturer, it is best to have a registered capital of 2000W yuan; the company's personnel, especially technical R&D personnel and after-sales personnel, must reach at least 150, so that it can have technical energy and After-sales energy meets the market's early technical support and later after-sales work.
2. There must be a large amount of operating performance in surrounding related industries. After all, performance is the last word (you say your home is good, someone must use it to prove that your home is good). For example: Overvoltage protector at least It must have 10,000 units and more than three years of operating experience. The most important thing is its flow rate (at least 600A/2MS). The absolute flow rate is the zinc oxide valve used inside (at least a diameter of 52MM). ), the current three-phase four-column structure is prone to explosions, rapid aging, and inability to monitor online due to neutral point problems and gap problems.
3. As you said, At least there must be quality system certification, 3C certification, classification society certification, reports from the Western High-Tech Institute, the Wuhan High-Tech Institute, the National Electronic Products Inspection Center, etc.
4. Such as intelligent temperature and humidity controllers and harmonic eliminators (It must have full-frequency harmonic elimination capability of 0-300Hz). The minimum electronic anti-interference ability of the switch cabinet operating display device must reach level 4 or above
You can check out the rest yourself. I will provide it first. That's it... I know good manufacturers: Anhui Yitian Electrical Technology Co., Ltd., Shanghai Hekai Electric, Zhuhai Yiduo Electric. For specific details, you can refer to my suggestions above and choose carefully. I wish you can choose a satisfactory manufacturer! ! !