Study on Corrosion Resistance of Copper-clad Steel for Grounding Engineering in Zhejiang Typical Soil
Due to less corrosion related studies of copper compound steel grounding materials,the serious reduction of substandard copper layer thickness reduces the service life of copper compound steel.According to the corrosion performance of copper composite and copper layers,the corrosion properties of grounding materials in typical soil and copper thickness in Zhejiang province were studied.The results show that,according to the electrochemical corrosion test results of copper-clad steel,in order to ensure the electrical and thermal stability of copper-clad steel after 40 service years,the thickness of copper layer should be ≥ 0.80 mm under the condition of highly corrosive soil in Zhejiang province.Under the condition of moderate corrosive soil,the thickness of copper layer should be ≥0.50 mm.Under the condition of weak corrosive soil,the thickness of copper layer should be ≥0.40 mm.The soil in Zhejiang is mostly acidic,and acid ions can easily destroy the copper passivation layer,so the thickness should be increased appropriately when designed.
electric engineeringgrounding materialcopper-clad steelcorrosion resistance
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