The connection between terminal and thread head is firm, can reduce touch resistance. When a wire has a threaded end with multiple cores, it is necessary to tighten the wire end before connecting it to the terminal. Terminals and flexible wires shall not have loose, broken or exposed multi-strand cores. When connecting large section aluminum wire and copper head, choose copper-aluminum transition joint. When connecting the wire, the phase of the terminal and the phase sequence of the wire must be clearly distinguished before connecting. The conductor of special materials such as aluminum core and aluminum terminal shall remove the oxide layer, and the terminal and the conductor insulation layer shall be kept at a certain distance.

The winding terminal wraps the wire directly around the winding column of the angular touch piece. When wrapping, wrap the wire under controlled tension, press in and fix it at the corner of the touching part around the column to form air-tight touch. The winding wire has several requirements: the nominal diameter of the wire should be within 0.25 mm ~1.0 mm; When the diameter of the wire is no more than 0.5 mm, the copyright of the control engineering network belongs to it, and the elongation of the wire material is not less than 15%; When the conductor diameter is greater than 0.5 mm, the copyright of the control engineering network belongs to it, and the elongation of the conductor material is not less than 20%. The wraparound tool includes a wraparound gun and a fixed winding machine. The wiring terminals are connected by screws, and the connecting electrical cleaning reminds you to pay attention to the maximum and minimum cross sections of the connecting wires and the tightening torque allowed by screws of different standards.

The terminal shall be of considerable stability for safe transmission of the control resistor. The contact value between the terminal and the resistor is directly related to the terminal's service life. If the resistance is too large, the terminal itself will change color, and the heat and voltage will cause the protective film outside the terminal to burn out, resulting in serious internal damage. The use range of terminal is more and more wide, and the variety is more and more. At present, in addition to the printed circuit board terminal, there are hardware terminal, nut terminal, tension spring terminal. In the power industry, there are special junction boards, junction boxes, they are terminals, single, double, current, voltage, etc.

The terminal is actually a piece of metal encapsulated in an insulating plastic, with holes at each end for piercing the wire and screws for fastening or loosening. For example, sometimes two wires need to be connected or disconnected. At this point, the terminals can be used to connect them and can be disconnected at any time without having to weld or wrap them together. Lugs can be added to both ends of the terminal socket to protect the lugs from bad placement. At the same time, this type of socket design can ensure that the socket can be correctly inserted into the matrix. The socket can also have mounting and fixing buckles. The mounting buckle can be more firmly fixed to the printed circuit board, and after the installation is complete, the confirming buckle can determine the parent body and socket. The various socket designs can be matched with different stab methods of the matrix, for example, horizontal, straight or skewed printed circuit boards. Be able to choose different methods according to customer requirements.