What Are The Common Methods For Testing The Quality Of Terminal Blocks?

For the terminal block, it is very important to do a good job of quality inspection. So what are the commonly used inspection methods when conducting the quality inspection of the terminal block?

The voltage drop experiment can be used to determine the resistance of the junction. When the connection terminal is connected, it will reflect the quality of the clamping point when it is used under the conditions of vibration, temperature cycling and corrosion. The temperature rise experiment is also a kind of reaction of the connection resistance. It allows the entire set of terminals to be inspected under standard current, high current and short circuit conditions. When working for a long time, especially when the temperature changes, the pressure drop of the contact will change greatly. Heating and cooling make each contact piece expand and contract, thereby changing the contact pressure and deforming the wire. If this is not compensated (ie, tighten the screws), an increased voltage drop will occur at the contact, which will obstruct the signal or cause an arc. In order to prevent the terminals from being deformed in these environments, the contact materials in the terminals and connectors must have a built-in anti-corrosion function.

Therefore, it is very important to do a good job in the quality inspection of the terminal blocks to ensure their outstanding functions and meet the needs of people's production and application.