Views: 57494 Author: Site Editor Publish Time: 2020-04-30 Origin: Site
Copper terminals are not very common in our daily life, because they are generally contacted by professionals, and their usage places are generally in various switch cabinets.
Copper terminal refers to the connection between copper terminal crimped with pressure pliers and conductor. In the electrical circuit, in order to ensure reliable and convenient wiring, a special crimping clamp is used at the end of the wire to connect the crimping copper terminal with the wire. Generally, RNB type is commonly used, such as RNB2.5-5, which is to clamp 2.5 square wires and screws are 5mm, other models and the like.
(1) The crimping copper terminal is very convenient, which can easily realize the chain bridge according to the actual requirements.
(2) It can improve the insulation safety and prevent the wire from bifurcating when the wire connection position is close to each other.
(3) This makes it easier to insert the wire into the end of the terminal.
Sectional area of wire used [mm²]
Most of the RCCN standard products can achieve high-quality welding through the automatic welding machine.
The quantity of engeering work is calculated by 10 crimping copper terminals as a unit, and the terminals are calculated by the main material. Crimping terminal has been included in the production of cable terminal head, so the engeering work quantity of crimping terminal will not be calculated separately, but the terminal will still be calculated by main material.
Generally, the engeering quantities of terminal boards of low-voltage switchgear and copper terminals need not be calculated. These costs should be included in the price of finished low-voltage switchgear. The crimping copper terminal is included in the engeering work quantity of cable terminal head and cannot be calculated by other items. Generally, the cable terminal will not be calculated under 62, and only the copper terminal will be calculated. The calculation method is based on the number of wires, and there are several terminals for several wires.
Generally, for wires of 6mm2 and below, whether there is a terminal or not, apply terminal free external wiring and terminal external wiring respectively according to the actual wiring. For wires of 10mm2 and above with large cross-section, apply two subitems including welded copper terminal and pressed copper terminal. The price of terminal itself has been included in the sub item of quota. The calculation method of terminal is like this. Each distribution box is calculated according to different sections, one line and one terminal. The number of incoming lines in different sections of all distribution boxes is the total number of terminals.
Copper terminals are generally used in junction boxes, distribution boards, distribution boxes, explosion-proof switches and other places where wiring is required. Its specification is determined by the thickness of the wiring.
Copper terminal is a kind of electrical accessories, which makes the connection between lines more firm. The crimping copper terminal has a special style, but it is easy to stack, so the usage of the crimping copper terminal can not only make the circuit connection more firm, but also greatly help the neatness of the circuit.
Cixi Kefa Electronic Co., Ltd. specializes in the production of all kinds of terminals, terminal blocks, PCB terminals, electronic connectors and precision molds.