Copper clad steel is a layer of electrolytic copper molecule with 99.9% purity, which is processed by electroplating process on the periphery of low carbon steel core. The process not only overcomes the disadvantage of galvanic cell reaction in casing process, but also solves the disadvantage of insufficient thickness of copper layer and negative and positive surface of copper layer in hot-dip continuous casting process. Copper thickness is 0.254 mm, 0.33 mm, 0.5 mm, 1 mm and other specifications. Copper has high conductivity, durable oxidation resistance and corrosion resistance. Its steel core has high tensile strength. Therefore, this product is an indispensable high-tech product in lightning protection and grounding in modern society. The copper layer of copper clad steel earth rod
is about 0.125-1 mm, too thin or too thick will affect the best use effect of copper clad steel earth rod. If the copper layer is too thick, it will affect the adhesion between copper and steel. The optimum thickness of copper layer is 0.245mm. If the thickness of copper layer is 0.125 mm, copper clad steel earth rod will be corroded seriously in a few years. So the price of copper clad steel earth rod with thin copper layer is lower than that of copper clad steel earth rod. Choosing copper-clad steel grounding electrode with thick copper layer, the material and price of the product produced by the same thin copper layer are relatively higher. Secondly, when the copper layer is too thick, its conductivity is low. So the copper clad steel earth rod with the best copper layer will get the best lightning protection effect.