1. Conductive performance
Advantages of high-purity copper: Copper is the most commonly used conductor material for PVC insulated flexible cables. When choosing a conductor material, the first thing to consider is the conductivity. High-purity copper (such as oxygen-free copper) has a lower resistivity and can effectively reduce the loss of electric energy during transmission.
Features of tinned copper: Tinned copper is also a common choice. The tin coating can prevent the oxidation of copper conductors, because copper is easily oxidized in the air to form copper oxide, which increases the resistance of the conductor. Tinned copper can maintain good conductivity in a humid environment or a certain corrosive environment.
2. Mechanical performance considerations
Necessity of multi-strand twisting: For PVC insulated flexible cables that need to be bent frequently, the conductors are generally twisted in the form of multi-strands. Multi-strand twisted copper wires can increase the flexibility of the conductor, allowing it to withstand multiple bends without breaking. Moreover, compared with a single-strand solid conductor, the multi-strand twisted structure has better tensile resistance when stretched by external force.
Relationship between copper wire diameter and strength: The diameter of the copper wire will also affect the mechanical properties of the conductor. Thinner copper wire can make the conductor softer, but the strength may be relatively low; while thicker copper wire has higher strength, but the flexibility will be reduced. When choosing, it is necessary to balance flexibility and strength according to the specific application scenario of the cable.
3. Balance between cost and performance
Cost difference of different copper grades: When choosing conductor materials, cost is also an important factor. Copper materials of different purity grades have different prices. In some occasions where the requirements for conductivity are not extremely high, such as general indoor electrical equipment connection cables, ordinary copper with a more affordable price can be selected as a conductor to reduce costs while meeting basic performance requirements.
Comprehensive consideration of cost performance: It is necessary to comprehensively consider the service life, working environment, transmission performance and other factors of the cable to select the conductor material to achieve the best balance between cost and performance. For example, for some temporary equipment connection cables with a short service life and a good working environment, it may be more appropriate to choose a conductor material with a lower price; while for cables with long-term use, harsh working environment and high transmission performance requirements, high-purity conductor materials with good corrosion resistance should be given priority.
If you are interested in the conductor material of PVC insulated flexible cable and are eager to get more detailed information, you are sincerely welcome to contact SIYAO Group for in-depth consultation. We have a very professional team who are always on standby and ready to listen carefully to your specific needs.
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