The secret of copper terminals: why it is the core accessory that electricians cannot do without

Walk into a house being renovated or a factory site under intense construction, and you'll find rows of neatly arranged metal joints in the toolbox. They may not be as conspicuous as switch sockets, nor as thick and strong as cables, but once missing, it will directly affect the operating efficiency of the entire system and even cause safety hazards. This is the protagonist we want to talk about today-copper terminals, which contain extraordinary value behind the seemingly ordinary.

The so-called copper terminal, as the name implies, is a conductive connector made of high-purity electrolytic copper, which is usually used for crimping the ends of bare twisted cords of various specifications and models in order to achieve a more solid and reliable electrical contact effect. Compared with the traditional winding binding method, it not only improves the convenience of operation, but also greatly enhances the safety factor of the node area, so it is widely used in home appliance manufacturing, automotive electronics and building strong and weak current systems.

The reason why it is really recognized by the industry is its excellent physical and chemical properties. First of all, thanks to the good conduction performance given by high-quality copper raw materials, the signal loss is reduced to the lowest level, and the risk of failure caused by resistance heating is also reduced. Secondly, after the surface is treated by a special anti-oxidation process, it can keep its original appearance without rust peeling for a long time even in the face of humid salt spray environment, which is especially important for harsh conditions such as coastal areas or chemical plants.

Common types on the market include open C- ring terminals, closed circular terminal caps, double-hole parallel insert pieces, and many other styles to choose from. According to different usage scenarios (such as the docking of the main line of power supply entering the household and the fixing of the zero live wire of lamps), it is necessary to reasonably select products of appropriate size and shape and carry out pressing operation with special hydraulic tongs to achieve the best results. For example, in the daily maintenance of the family is more suitable for the AWG14-AWG18 diameter of the standard cylindrical end, and in heavy machinery may need to use a larger load-bearing level of customized non-standard parts.

an old electrician with 20 years of working experience once told us such an experience: when participating in the rectification task of lighting circuit of commercial complex, it was found that the original circuit was seriously loose, resulting in frequent tripping and power failure. After investigation and confirmation that it was caused by virtual connection caused by human error, it was immediately decided to replace all the old interface devices and replace them with a new batch of tinned protective layer and thickened copper terminals to re-lay the network architecture. Finally, the stable power supply state was successfully restored and highly praised by customers. "Sometimes success or failure lies in these tiny little parts." He smiled and said, "It's as critical as the human nerve endings!"

In addition to the professional field, more and more friends who are keen on DIY production have begun to attach importance to the importance of such basic consumables. They will consult relevant materials on the internet to learn the correct installation method, and specially purchase brand products with excellent quality and put them into personal project practice, such as self-made smart home control system or assembly of portable energy storage equipment for outdoor camping, etc. This also reflects the current trend of the overall quality of consumers to continuously improve the pursuit of higher quality of life.

All in all, although the appearance is simple and unpretentious, it is an indispensable part of the source of strength to maintain the normal operation of modern society. The next time you turn on the light bulb and press the button to start the appliance, think about the small copper terminals that work quietly at the junction of the cables! It is because of them that we enjoy such a convenient and comfortable life experience, isn't it? Prepare some spare stocks for yourself just in case ~