Degradation of Steel Wires in Bimetallic Aluminum–Steel Conductors Exposed to Severe Corrosion Conditions

High-voltage electrical cables are prone to saline corrosion, mostly in coastal environments. Steel wires a crucial element withstanding the mechanical solicitations of commonly used aluminum conductor steel reinforced (ACSR) cables. An experimental accelerated corrosion test was made, using salt spray tests on greased and ungreased ACSR individual galvanized wires. The mechanism occurring specimens observed by optical microscopy for several durations determine evolution galvanic layer substrate degradation. This study completed an SEM (Scanning Electron Microscopy) Raman spectroscopy analysis characterize products estimation mean zinc thickness loss is also given, each type specimen. It shown that rate significantly reduced presence layers around effect grease. Tensile were made exposed which led fracture surface observations assess properties.