When the special terminal block is in poor contact, it will affect the overall work. Is there any way to prevent the phenomenon of poor contact? Let's take a look at the prevention methods for the bad phenomenon of the terminal block by Kenbo Xiaobian.

Method 1: Conduction detection

For the general manufacturer, there is no acceptance test. When the user needs to conduct the conduction test after installation, it is necessary to increase the conduction test for the more important equipment.

Method 2: Instantaneous detection

Generally used in the dynamic detection environment, if it is only used to check whether the static contact resistance is qualified, it is not guaranteed to be reliable in the dynamic environment. If you want to know whether the contact resistance is qualified, you need the equipment to vibrate and impact. Perform a momentary test.

Method 3: Single hole separation force detection

The separation force of the state of the device from the stationary belt is used to characterize the pin and the jack is in contact. It is effective to check the contact reliability by measuring the separation force of the single hole. Check that the single hole separation force is too poor, the measured contact resistance is still qualified.

The above is the prevention method of contact failure at the terminal block. I hope this article can help you.

What factors can cause the high temperature of the cold-pressed terminals? There are two reasons for the high temperature phenomenon of the cold-pressed terminals. One is because the terminals are loose, and the other is that the overheated terminals are not loose, causing the loop to eventually cause current heating for some unknown reason. Xiaobian specifically for you to talk about what causes it;

First, the voltage is too high: the socket can also be assembled with the buckle and the locking buckle. The assembly buckle can fix the PCB board more firmly. The locking buckle locks the mother body and the socket after the installation is completed. No matter what kind of socket can be used with different Mother.

Second, the wiring fault: check from the transformer and then check the grounding of the distribution box, you can use the insulation meter or the shake table to measure when the power is off, need to measure in sections, try to segment the cable, wire, circuit breaker , switch and other power supply and distribution lines.

The above is the cause of the high temperature phenomenon in the cold-pressed terminals. I hope this article can help you.