- 规格:
- JTFL
Copper-clad steel stranded wire
is an important component in the DC transmission system. Copper-clad steel stranded wire has the characteristics of simple construction and can be directly driven into the soil. It has good electrical conductivity and stable electrical performance. The copper layer is uniform, the copper content is high in purity, the steel core is strong and corrosion-resistant, and the copper cladding will not become disconnected, warped, or cracked. Is the thickness of the copper layer of the steel strands uniform? The disconnection layer of the copper-clad steel strands and the grounding electrode are molecularly bonded. When the Jitai lightning protection copper-clad steel strands penetrate deep into the soil, they will not bend or break. . However, the welding of ground electrodes can be divided into copper-clad steel stranded wire butt joints and copper-clad steel feeder cables. Copper-clad steel stranded wires can be electrically welded or connected in series using exothermic welding molds, but the electrical performance and corrosion resistance of the welding points must be ensured. Copper-clad steel feeder cables Jitai Lightning Protection recommends that you use DC transmission ground electrode welding design The ground electrode is a very important part of the DC transmission system. Jitai lightning protection copper-clad steel stranded wire is used as a return channel for DC operating current to transmit electric energy. When the system is bipolar, the copper-clad steel stranded wire plays the neutral point potential of the converter valve embedded in the converter station. It protects the safe operation of the converter equipment in the converter station.
The advantages of Jitai lightning protection copper-clad steel stranded wire are high tensile strength, strong corrosion resistance (guaranteed service life of more than 10 years, constant low resistance and good plasticity, both with It has the same performance as copper but also has the characteristics of steel.
The perfect surface craftsmanship of Jitai lightning protection copper-clad steel stranded wire
The surface of copper-clad steel stranded wire seems clean and rust-free, especially after a long time The surface that is not rusty usually has a protective film, such as a passivation film or residual lubricant or protective salt. In addition, if metal impurities are mixed into the cathodic electrolysis method, it will cause damage to the copper-clad steel strand
deposits on the surface, the copper-clad steel grounding rod will affect the bonding force, but anodic electrolysis can also easily cause passivation or anode erosion. Therefore, for low carbon steel, you can choose short-term cathodic electrolysis to remove oil, which is beneficial to activating the surface and increasing the bonding force. Synergy.
The fundamental solution is to use a low-oxygen and oxygen-free heat treatment process during heat treatment. For high-carbon steel, chemical treatment will cause carbon enrichment on the surface, which will also affect the bonding force. Sometimes new drawing The steel wire that comes out is rarely rusted or oily. It is wrong to think that it can be electroplated without pre-treatment. Copper-clad steel stranded wire
Originally, mixed acid can be used for strong etching, but because the diameter of the steel wire is limited, the strong corrosion resistance Corrosion will damage the wire and lead to a decrease in strength, so it should be treated with caution. It is often advisable to use physical methods to remove oxide scale, and then use weak chemical methods to activate the surface.
Copper-clad steel strands
are wrapped with steel. The conforming material of the copper layer is mainly used in lightning protection projects. The construction principle of copper-clad steel stranded wire is to utilize the skin effect of low-voltage and high-frequency signals. Copper-clad steel stranded wire
The main measure in lightning technology, the quality of the grounding project can directly affect the lightning protection project. If the grounding work is not done well, it will prevent the lightning current from discharging into the earth, which is particularly likely to cause ground potential counterattack and damage the equipment. Judging from the specific conditions of the operation, the solder joints of the copper-clad steel strands still need low-temperature stress relief treatment. During the construction operation, it was found that the welding workload is so large that only experienced welders can operate it. This achieves metallurgical Molecular bonding. Then under such requirements, the role of copper-clad steel stranded wire can be clearly reflected, and it can complete all the above requirements.
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