A, wire joint connection
Power cord connectors are divided into "X" connection, "-"connection, "D" connection and so on. The joint shall be tightly wrapped, smooth and free of thorns. Before the thread end is disconnected, gently press it with wire cutters, then wrap it around your mouth and swing it from side to side. The thread end will be disconnected at the joint very closely. If the joint is in a dry place, first wrap two layers with insulating black cloth, then two layers with plastic tape (also called PVC tape), then two or three layers with J- 10 insulating self-adhesive tape, and finally two layers with plastic tape. Because direct use of plastic tape has many disadvantages: plastic tape is easy to be misplaced over time; When the electrical load is large, the joint is hot, and the plastic belt is easy to melt and shrink; The power connectors are pressed against each other in the junction box. When the connector has burrs, it is easy to puncture the plastic belt. These hidden dangers directly endanger personal safety, resulting in moderate wiring and fire. However, when using insulating black tape, the above situation will not occur. It has certain strength and flexibility, can tightly wrap the joint for a long time, is dry and fixed under the influence of time and temperature, will not fall off, and is flame retardant. Furthermore, wrapping with insulating black tape and then wrapping with tape can prevent moisture and rust. Of course, the insulating self-adhesive tape also has defects. Although waterproof, it is easy to break. So finally, two layers of plastic tape should be wrapped as a protective layer, and the insulating self-adhesive tapes of the joint do not stick to each other, so the performance is better.
Second, how to waterproof the wire connector?
High-pressure waterproof tape, like ordinary plastic insulating tape, can be wound. This kind of adhesive tape looks like rubber, just like the black, soft and thick car tires. After wrapping and pinching, it becomes a whole, completely sealed and not afraid of water. You can buy electrical materials everywhere.
Three. Introduction of wire joint bushing
Bushing with higher quality and hardness is generally used outside the power cord, which has better fire resistance and waterproof performance.
Casing is usually used in the basement of buildings to protect pipelines or facilitate the installation of pipelines.
Classification of casing: rigid casing, flexible waterproof casing, steel casing, iron casing, etc.
From the perspective of users and consumers, and assuming that not everyone can clearly understand the professional basic knowledge of wire connectors, this paper mainly analyzes the connection method of wire connectors and the specific waterproof treatment steps and operation methods. In addition, considering the problems that many people will encounter in other aspects, we also present the contents of the wire joint sleeve, so it is not difficult to understand that it can play a protective role, which is crucial.