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CCS Round Wire
- 50000 Piece / Pieces per Month
- T/T
- 30 days
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Product Description
0.8 Series CCS Round Wire
Origin of new material development
0.8mm series copper-clad round wire is a new type of material developed by our Company to replace pure copper. Because it has the advantages of high strength, low price, high corrosion resistance and high conductivity of copper, and meanwhile its comprehensive performance is high and its cost is more economical than pure copper grounding device, it has been widely used in UHV lines, petrochemical industry, nuclear power and high-speed railway, especially in key projects in recent years.
Copper-clad steel:
The material in which the surface of a steel core is uniformly coated with copper includes copper-clad steel bars (for vertical grounding electrode only), copper-clad steel tape, and copper-clad steel wires (including round wires and stranded wires). According to the production process, it can be divided into continuous casting copper-clad steel and electroplating copper-clad steel.
Development of copper-clad steel grounding device
With the increasing voltage level of power lines and the increasing capacity of the system, higher requirements are put forward for the safety and reliability of grounding devices.
The traditional method in foreign countries is to use pure copper as the grounding material, but pure copper is expensive and it is a strategic resource, which is not suitable for being massively used as grounding devices in China. From 1910 to 1955, National Bureau of Standards (NBS) conducted corrosion resistance studies of grounding bodies. 36,500 samples collected at 128 test sites throughout the United States represented 333 metal materials consisting of iron, non-ferrous metals and protective coatings, respectively. The test results show that only steel bars and stainless steel bars with copper plating thickness over 0.5mm can be accepted.
In addition, continue the statistical data of 8 to 30 years and take the test results of 43 copper samples in different soils, 41 of which were calculated, to get the 0.17mm average pitting depth of 30 years. Therefore, some international standards have determined the thickness of copper coating of copper-clad steel material to be at least 0.25 mm. Considering the hard friction during construction, it is suggested that the thickness of copper coating be defined as 0.5-0.8 mm.
In China, copper clad(copperweld) steel materials are widely used in substation grounding grids in areas with high soil resistivity. Because of the characteristics of UHV project, such as high voltage level, large capacity and short power cut window period, combined with the corrosion intensity of groundwater in the area, copper-clad steel grounding devices have been applied in UHV lines and many UHV lines in China use copper-clad steel materials as grounding bodies.
Comparison between copper-clad steel grounding and traditional hot-dip galvanized steel grounding device
1. Corrosion rate comparision
Annual corrosion rate of grounding materials in some place of Beijing and Tianjin
Material | Beijing Liangxiang | Tianjing Dongli |
Stainless stell | 0.002 | 0.003 |
Pure coper | 0.001 | 0.001 |
Copper-cald stell | 0.001 | 0.001 |
Galvanized steel | 0.176 | 0.2 |
The test results show that galvanized steel has the most serious corrosion and its corrosion rate is more than 50 times higher than that of pure copper; the corrosion degree of stainless steel is much lower than that of pure copper and copper-clad steel, showing good corrosion resistance; as a copper-steel composite material, the self-corrosion potential of copper-clad steel in soil is basically the same as that of pure copper, and its corrosion rate is the same as that of pure copper; the corrosion rate of the electroplated copper-clad steel with thinner coating is higher than that of the continuous casting copper-clad steel with thicker coating.
Ningbo Zhenhai Beisuda Petrochemical Equipment Co.,Ltd is one of professional copper clad steel wire manufacturer and copper clad steel wire suppliers. We provide CCS Round Wire, CCS-Stranded Cable, copper clad steel conductor, cald weld molds, copper clad stainless steel wire, copper plated steel wire, ccs wire and so on. Want to know about clad steel definition and copper clad steel wire prices? Please contact us.
Contact Us
- ningbo zhenhai beisuda petrochemical equipment co.,ltd
- Contact nameMax Yan Chat Now
- Phone86-574-86573899
- AddressFloor 8, No.8 Shunye street, Zhenhai District,Ningbo 315202,China, Ningbo, Zhejiang
Product Categories
Grounding Conductor | earthrodchina2021 | 2021 | earthrodchina001 |
2022 |
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