Oxidation Of Signal Terminals In Cable Terminals

Oxidation of the signal terminals of device cable lugs is a common fault phenomenon. When metallic materials are exposed to air, moisture, and environmental chemicals, a chemical reaction occurs on the surface of device wire lugs, generating oxides or corrosion products. This change often first appears on the contact surfaces of signal terminals because these areas are in a long-term open or semi-enclosed state, having more direct contact with the environment.

electrical lugs The type of material and environmental conditions significantly affect the oxidation rate of signal terminals. For example, copper or copper alloys terminal lugs are more prone to combining with oxygen and moisture under high humidity conditions, and the oxidation reaction rate further increases with rising temperature. Acidic or salt spray gases in industrial environments can also promote the oxidation process, causing the formation of a poorly conductive oxide layer on the surface of the signal terminals.

The physical factors of the cable installation location are also crucial. In coastal areas, underground equipment rooms, or if the internal space of the equipment is not properly sealed, humidity and corrosive media can easily seep into the connection area, causing oxidation products to gradually accumulate at the contact points. Over time, this will affect the quality of electrical contact between terminals and the stability of transmission.