According to a simple survey by technicians in the market, there are more and more unqualified industrial plugs in the market, but the appearance is more and more real. Generally speaking, we can't see what is simple scribble, not only the improper selection of materials, but also the lack of quality control procedures to ensure that the safety problems caused by quality problems gradually appear in future use. Industrial plugs are applicable to industry. They are generally divided into 3 cores, 4 cores, 5 cores, etc. the current is generally divided into 16a, 32a, 63A, 125A, 250A, 420a, etc. the protection grade can be divided into IP44 and IP67, which are relatively conventional. Generally, it is used together with industrial socket and industrial connector. A switch is arranged between the resistance of the weatherproof socket and the electromagnetic switch, the fuse and the electromagnetic switch are connected with the power line, the power line is provided with an electromagnetic switch normally open switch, and the electromagnetic switch normally open switch is connected with the socket. The power socket has one or more seats where circuit wiring can be inserted, through which various wiring can be inserted to facilitate connection with other circuits.

The internal copper bars of industrial plugs are very thin, and some thin copper bars are not even used. They are directly replaced by iron bars that are easy to rust. If the internal structure of the industrial plug is unreasonable, the copper wire of the power supply cable is thin and few. When the industrial plug needs to handle a large power load, the condition of the power supply cable will lead to the heating of the industrial plug and cause a fire. In case of fire, the shell of the industrial plug is made of recycled plastic with poor quality. Not only is there no good plastic flame retardant, but recycled plastic will even produce combustion effect, which is very unfavorable to the fire situation.

For the above phenomena, give you fulcrum skills so that you can quickly and easily determine the industrial plug in the market.

1. Brand recognition, when buying Chinese industrial plugs, is related to China's personal, property and safety, so we believe that some well-known brands are relatively stable and reliable. The development of well-known brands must go through layers of market analysis and screening. They must have many years of experience in the management of industrial plug industry. They have not been tested by many customers for many years.

2. Check the appearance quality. The industrial plug shell is made of high-quality engineering plastics, which is characterized by good flame retardancy and can reduce fire. High quality engineering plastics have the same flame retardant effect and combustion characteristics as low-quality recycled plastics. We can easily see the quality and there will be an obvious comparison.

When checking the appearance, we should also check the copper strip in the opening of the industrial plug. After all, the material and thickness of the copper strip will directly affect the safety performance of the socket. The high-quality copper sheet looks very thick, the outer coating is very bright, the conductivity is good, and it is not easy to heat, etc. We can tell the quality of copper from its thickness. We can also observe the appearance of copper. If the copper is round and thick, it may be a high-quality copper.

3。 The feeling of touch. The power cord of high-quality industrial plug is moderately soft and hard, and the industrial plug with poor quality will feel soft or hard when we pull the power cord. We feel that we can pull it down as soon as we pull it. Another technician told us that the material and thickness of copper wire inside the power line of industrial plug vary greatly. The cost of copper wire is high, so the quality of industrial plug power line is very thin copper wire, and the material is also very poor.

Knowing the above three points can very well distinguish the quality of industrial plugs in the market, hoping to help you stay away from the potential safety hazards caused by poor industrial plugs.