Reasons For The Limited Performance Of Parallel Groove Clamps In Highly Corrosive Environments

bimetal pg clamp provides stable electrical contact and mechanical connection in most conventional scenarios. However, when the operating environment is highly corrosive, its performance will decline significantly. This is closely related to the material properties, the action mechanism of the environmental medium, and the physical changes during long-term operation.

Common blackburn parallel groove clamp materials are mostly made of aluminum alloy, copper alloy and galvanized steel. These metals will undergo continuous oxidation and corrosion reactions in humid, salt spray and acidic atmospheres. This reaction changes the surface condition and geometry of the contact surface, which has a substantial impact on the function of burndy parallel groove clamp.

In highly corrosive environments, oxygen and moisture react with metals electrochemically to form oxides or rust layers. These corrosion products accumulate in the contact area of the connector parallel groove conductor, altering the roughness of the contact interface, affecting the fit between the metal and the wire, and causing changes in contact resistance. Over long-term operation, corrosion further extends to fasteners and stress-bearing areas, potentially weakening the fasteners, causing localized loosening, or even poor contact, introducing instability into the wiring connection.