Copper aluminium wire transition crimping clamp

Abstract

The invention discloses a copper aluminium wire transition crimping clamp comprising a tubular clamp body and a forcing screw arranged on the clamp body, wherein the forcing screw is connected with the clamp body by virtue of a screwed hole, and the end part of the forcing screw is provided with a blanking plate. The clamp body is a product made of a silicon-magnesium-aluminium alloy, and an electric force compounded grease layer is coated on the surface of the clamp body. According to the crimping clamp disclosed by the invention, material selection and reasonable design on a body structure are carried out, thus a copper wire and an aluminium wire are effectively connected in a transition manner, a constant and high enough contact pressure and the maximum contact area are obtained, low contact resistance can be maintained for a long time, and the overload capacity is strong. In a using process, along with variation of external environment and load condition, stable contact performance on connection between wires can be realized, the electric force compounded grease layer is coated on the surface of the clamp body, oxidation resistance and corrosion resistance are high, the service life is relative long, maintenance and overhaul are avoided, the copper aluminium wire transition crimping clamp disclosed by the invention can be repeatedly used for multiple times, and the maintenance cost is reduced. The copper aluminium wire transition crimping clamp disclosed by the invention is convenient to mount and has stable and reliable performance.

Description

technical field [0001] The invention belongs to the technical field of accessories for electrical distribution equipment, and in particular relates to a copper-aluminum wire transition crimping clamp. Background technique [0002] At present, the connection between the aluminum wire on the low-voltage side of the distribution network transformer and the voltage copper wire of the transformer metering unit usually uses a crimping clamp consisting of a conductive connecting plate and compression screws located at both ends of the conductive connecting plate. When implementing wiring, the aluminum wire drawn from the low-voltage side of the distribution network transformer and the voltage copper wire of the transformer metering unit are respectively wound on the two compression screws by hand binding, and the aluminum wire and copper wire are separated by the compression screws. Press tight. Long-term practice shows that this crimping clamp adopts the hand-tied wire connection...

AI Technical Summary

Problems solved by technology

Long-term practice shows that this crimping clamp adopts the hand-tied wire connection method. Although the installation and operation are convenient, it is too random, the crimping quality and reliability are poor, there are small wire crimping areas, poor contact, galvanic corrosion, and crimping components are easy Problems such as burning loss and falling off will lead to equipment operation and power supply failure, which will bring different degrees of economic losses to power companies and users; or after long-term use, the electric energy meter will show a loss of voltage, resulting in less or no metering, which will cause power metering and maintenance work. It has brought a lot of trouble and inconvenience, and also caused the loss of business power, which directly affects the line loss index of business assessment

Secondly, the crimping clips currently used are generally made of low-carbon steel materials. During long-term field use, they are easily rusted, corroded and peeled off due to wind, rain and sun, resulting in malfunctions in the connection and connection equipment, and overload Weak ability, poor conduction transition performance

Images