After being stored in the warehouse for a period of time, the color of the copper-clad steel grounding rod has turned black. What is the reason for this? Here, the technical department of Qingdao Wind Power Lightning Protection and Resistance Reduction Materials Co., Ltd. will analyze the issue of discoloration of copper-clad steel grounding rods.

In fact, it should be said that any copper-clad steel product will change color after a period of time. Because products such as copper-clad steel grounding rods or copper stranded wires that are exposed to air for a long time will undergo chemical reactions with oxygen molecules in the air, that is, oxidation. When encountering rainy weather or humid air, the oxidation reaction will be accelerated, and the surface will turn black. This situation is normal because it is precisely because of its oxidation that it has corrosion resistance. Alternatively, when purchasing a large quantity of products such as copper-clad steel grounding rods and copper-clad steel stranded wires, there may be a certain color difference in the same batch of products. This is because they are not electroplated from the same batch, so a small color difference is normal and will not affect the product or its performance. Users can use it with confidence!