What impact does cable assembly material have on performance?

2024-05-01 10:31:15

The material of the Cable assembly has a great influence on the performance, which is mainly reflected in the conductor, insulation layer and sheath layer. The following will introduce the impact of the materials of these parts on performance.

The impact of conductor material on performance: Conductor material is the most important part of the cable assembly, which directly affects the conductive performance and transmission performance of the cable. Common conductor materials are copper and aluminum. The main reason why copper conductors are superior to aluminum conductors is that they have high electrical conductivity and can provide better conductivity while having lower resistance and power loss, which is very important for long-distance transmission and high-load circuits. Therefore, copper conductors are more suitable than aluminum conductors for cables requiring high performance.

The impact of the insulation layer material on performance: The insulation layer is used for insulation protection of cable conductors to prevent current leakage and leakage. The material of the insulation layer directly affects the cable's voltage resistance, chemical corrosion resistance, abrasion resistance, moisture retention and high temperature resistance. Resin materials such as polyethylene, cross-linked polyethylene, and polyvinyl chloride are often used as insulation layer materials, and the properties of different resin materials will vary. For example, cross-linked polyethylene insulation layer has better electrical breakdown resistance and temperature resistance than ordinary polyethylene insulation layer, and is suitable for cables in high-voltage and high-temperature environments.

Effect of sheath material on performance: The sheath is used to protect the cable insulation layer from external mechanical forces, chemical corrosion and environmental factors. The material selection of the sheath layer should be considered according to the specific use environment of the cable. For example, in outdoor and high-temperature environments, polyvinyl chloride (PVC) sheathing materials can provide better weather resistance and heat resistance; while in flammable environments, low-smoke halogen-free materials such as polyurethane (TPU) and cross-linked Polyethylene (XLPE), etc. are more suitable for use because they have good flame resistance and low smoke properties and will not produce a large amount of toxic gases once they catch fire.

In addition to the impact of the above main materials on performance, other auxiliary materials such as fillers, lubricants, shielding layers, etc. will also have an impact on the performance of the cable. The filler material can fill the gaps between the conductors and improve the mechanical strength and electrical performance of the cable; the lubricant can reduce the friction between the conductor and the insulation layer, reducing the noise and loss of the cable; the shielding layer can isolate the cable from interference with external electromagnetic fields. Improve the cable's anti-interference ability.

In short, the material of the cable assembly has a great impact on performance. Choosing appropriate conductor, insulation layer and sheath layer materials can improve the conductivity, voltage resistance, chemical corrosion resistance and mechanical strength of the cable, thereby better meeting the needs of different application scenarios.