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The grounding grid of our company is severely corroded, and it is necessary to replace it with galvanized flat steel. I’ve heard that there are metal flat sheets made from a nanocomposite conductive material; I was wondering if anyone uses such materials, and what their corrosion resistance is like What’s the price? Thank you!
Replace it with copper-clad steel material
Will their electrochemical corrosion be severe?
Copper-clad steel materials cannot coexist with areas where pipelines are present, as this will lead to electrochemical corrosion and result in the corrosion of iron; this has already happened on the pipelines in our company. Zinc-clad steel grounding electrodes could be considered, but it seems that these are suggestions put forward by manufacturers; in reality, galvanized flat iron is already very practical. :lol
I’ve never heard of nanomaterials, but I do know a bit about copper-clad steel; this is provided for reference. In developed countries, copper-clad steel materials are widely used in grounding systems due to their excellent electrical conductivity, high mechanical strength, and particularly the corrosion-resistant properties of the outer copper layer. The United States, the United Kingdom, Germany, and other countries stipulate in relevant standards that copper-clad steel composite materials can be used for both grounding electrodes and grounding wires. In our country, the corrosion resistance and reliability of grounding systems are receiving increasing attention, and the use of copper-clad steel composite materials to replace steel sections or galvanized angle iron in grounding systems is becoming increasingly common. TECH copper-clad steel grounding rods (wires) are a series of products developed by drawing on foreign technology and produced using horizontal continuous casting processes. They overcome the shortcomings such as poor adhesion associated with electroplating and sleeve coating methods, and possess advantages such as a thick copper layer, low resistance, strong corrosion resistance, high strength, easy installation, and good electrical connection properties. They can be widely used in the grounding systems of power transmission and distribution lines, communication lines, power stations, buildings, and antennas. They are also suitable for the grounding systems of electronic devices such as computers, and can be combined with lightning arresters (lightning rods, lightning conductors) and downconductors to form lightning protection grounding systems.
I believe that high safety requirements, such as those for galvanized flat steel used for grounding, demand specialized materials; the quality of current galvanized flat iron is too poor. Holding copper is certainly good, but it is too expensive and wastes resources, so it is not suitable for widespread use. If the production is done carelessly, it’s likely to not be much better; in fact, it might even be worse than products that aren’t galvanized.
There is already controversy in academic circles regarding lightning protection; are there any experiments that prove how much better copper-clad solutions really are?
Lightning resistance is just theoretical; copper-clad steel with corrosion resistance should be quite good.
UAIET Mechanical & Electrical – a specialist in lightning protection and grounding. It possesses a patented method for using nano-coated anti-corrosion galvanized flat steel; further communication is possible at uttjstxz@yahoo.com.cn
In areas where groundwater causes severe corrosion, it is better to use copper-clad steel, as it offers good corrosion resistance. Although zinc-clad steel is also good, its rate of corrosion is faster than that of copper-clad steel
Copper-clad steel is indeed good, but its cost is very high. Its application in the domestic market is still quite limited. At present, galvanized flat steel is still commonly used for grounding wires, while galvanized angle steel is often used as grounding electrodes. If the corrosion is severe, considering widening and thickening it appropriately is possible.