What factors affect the service life of terminal blocks

With the rapid development of terminal industry, the service life of terminal blocks has always been the focus of attention! What are the factors affecting the service life of terminal blocks?
What are the factors that affect the service life of terminal blocks?
Generally speaking, the factors affecting the service life of terminal blocks include: terminal manufacturing, transportation, storage, installation and maintenance, etc., as follows:
1. Terminal manufacturing
At present, most terminals in the market are composed of insulating parts, conductive parts and fasteners, and the material, process, structure, electroplating and other aspects of terminal production and manufacturing will affect the life of terminals!
In terms of terminal materials: the insulation material is PA or PBT, and the conductive material is pure copper, copper alloy or aluminum (pure copper has low resistance and good conductivity);
In terms of wiring terminal structure: the terminal design should be suitable for the use requirements of the wiring environment, with clear marking position, convenient and intuitive wiring, and convenient use of fasteners (shrapnel is the most advantageous within the allowable range of current);
In terms of terminal electroplating: electroplating is also the main economic factor that can directly affect the terminal life. The cost and service life of gold plating and silver plating are also different;
2. Use environment of terminal blocks
With the same quality, the worse the installation environment, the shorter the service life of the terminal. For example, desert wind power generation and residential electricity meter box, the service life of terminals will also be affected by different ambient temperature and humidity.
Terminal blocks are also affected by voltage and current during use. For example, in the circuit, the terminals working at high voltage, high current and high power are undoubtedly under pressure, and the damage is likely to be great.
3. Terminal transportation and storage
In addition, some terminals will know that the terminal quality will be damaged during violent loading and unloading during transportation! Moreover, some terminals have been stored in the warehouse since the production, and the performance and service life of the terminals will be shortened over time!