The insulation and conductivity of the terminals are determined separately. Any malfunction of the wiring terminals will lead to the failure of the entire system engineering. The painful lesson that exists both domestically and internationally is that the plastic insulation material and conductive components of the terminals are directly related to the quality of the terminals.
Preventing faults is more important than analyzing them. Preventive analysis is the foundation for ensuring the quality and reliability of wiring terminals, and has greater practical significance. In a sense
The expected function is that, from a usage perspective, the contact area must be conductive, and the wiring terminals must be conductive. Reliable connections. The non-conductive parts in the insulation layer must be reliably insulated. There are three rare fatal faults in the wiring terminals:

1. Poor contact
The voltage from external wires or cables, as well as the metal conductors inside the terminal block, are the core components of the terminal block. The current or signal is transmitted to the corresponding contact of the corresponding connector. Therefore, the contact components must have a good structure, stable and reliable contact resistance, and good conductivity.
Any malfunction of the wiring terminals will result in the failure of the entire system engineering
Due to unreasonable structural design of contact parts, incorrect data selection, unstable molds, large machining dimensions, rough appearance, improper surface treatment processes such as heat treatment and electroplating, improper assembly, harsh storage and use environments, and improper operation, it may lead to poor contact and mating parts of contact parts.

2. Poor insulation
The function of insulators between contact components is to maintain the correct placement of the contact components. Insulate the contact parts from the casing. Therefore, insulation components must have excellent electrical, mechanical, and process forming performance.
Especially with the widespread use of high-density and miniaturized wiring boards, the effective wall thickness of insulators is becoming thinner and thinner. This imposes stricter requirements on insulation materials, injection molding accuracy, and molding processes.
Any malfunction of the wiring terminals will result in the failure of the entire system engineering
Due to the presence of metal residues on the surface or inside of insulators, contamination and moisture from external dust, flux, organic material precipitates, as well as the fusion of harmful gas adsorption films and external water films to form ion conductive channels, moisture absorption, mold growth, insulation material aging, and other reasons, insulation defects such as short circuits, leaks, breakdown, and low insulation resistance may occur.

Poor fixation
Usually, it also provides precise neutralization protection for extended contacts, and the insulator not only serves as insulation. At the same time, it also has the function of installation positioning and locking fixed on the device. Poor fixation may affect the reliability of the contacts, leading to instantaneous power outages. The most serious problem is product disassembly.
Dismantling refers to the situation where the structure is unreliable due to data, design, process, and other reasons when the wiring terminals are in the inserted state, resulting in abnormal separation between plugs and sockets, as well as between pins and sockets, leading to serious consequences such as power transmission and signal control interruption in the control system.
Due to unreliable design, incorrect material selection, improper molding process selection, poor quality of processes such as heat treatment, molds, assembly, and fusion, as well as inadequate assembly and poor fixation, this situation may be caused.