10kV power distribution device copper and aluminum joint device

Abstract

The present invention relates to the technical field of transmission circuit joints, especially to a 10kV power distribution device copper and aluminum joint device. The device comprises a binding post copper plate, a copper and aluminum integrated composite plate and an aluminium alloy C-type device wire clamp which are arranged from bottom to top, and the binding post copper plate, the copper and aluminum integrated composite plate and the aluminium alloy C-type device wire clamp are detachably connected; the copper layer at the lower layer of the copper and aluminum integrated composite plate is in contact with the binding post copper plate, an aluminium plate at the upper layer of the copper and aluminum integrated composite plate is in contact with the aluminium alloy C-type device wire clamp. The 10kV power distribution device copper and aluminum joint device is simple in structure, the copper plate at the lower layer of the copper and aluminum integrated composite boar and thealuminium plate at the upper layer of the copper and aluminum integrated composite plate are respectively in direct contact and connection with the binding post copper plate and the aluminium alloy C-type device wire clamp to achieve seamless connection between the copper and the aluminum, the seamless connection allow the moisture not to be permeated between the copper and the aluminum so as to achieve the purpose of avoiding electrochemical corrosion without formation of the electrolyte and through damaging of the electrochemical reaction conditions and ensure the safe operation of the 10kVpower distribution device copper and aluminum joint device.

Description

technical field [0001] The invention relates to the technical field of transmission line joints, and more specifically, to a copper-aluminum joint device for 10kV power distribution equipment. Background technique [0002] The knife switch at the 10kV line knife switch connection is a copper terminal, which is connected with an aluminum alloy C-type equipment clamp. After the copper terminal and the aluminum alloy C-type equipment clamp are used for a period of time, the surface of the aluminum alloy C-type clamp appears A layer of powdery oxide, and serious heating problems at the connection, greatly affecting the safe operation of the device. The main reason for this problem is: when the copper-aluminum contact surface is directly connected, in a humid environment, moisture penetrates into the gaps in the contact surface to form an electrolyte. The chemical activity of copper and aluminum is different, and there is a certain potential difference between them. Under the ac...

AI Technical Summary

Problems solved by technology

[0002] The knife switch at the 10kV line knife switch connection is a copper terminal, which is connected with an aluminum alloy C-type equipment clamp. After the copper terminal and the aluminum alloy C-type equipment clamp are used for a period of time, the surface of the aluminum alloy C-type clamp appears A layer of powdery oxide, and at the same time there is a serious heating problem at the connection, which greatly affects the safe operation of the device

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