Comparison of the advantages and disadvantages of high-speed copper and aluminum alloy wire and cable

First, the advantages of high-speed copper cable: 1. High-speed copper cables with high current-carrying capacity: due to the low resistivity, the same cross-section of the copper core cable resistivity than the aluminum core cable acceptable current-carrying capacity (can be passed through the larger current) is about 30 ) high, the copper core cable voltage loss is low, so the same cross-section of the same current flows through. The voltage drop in copper-core cables is very small. Therefore, in the same transmission distance, can ensure high voltage quality; or in the allowed voltage drop conditions, copper-core cable transmission energy to reach a very long distance, that is, the power supply covers a large area, is conducive to the planning of the network, you can reduce the number of power supply points set up. 2. Fiber optic transmission loss has two characteristics, one is the same loss of all the cable channels, do not need to be equalized with an equalizer, like the cable trunk; second, its loss is almost the same as the loss of cable trunk; and the loss is almost the same. Equalization; Secondly, its loss almost does not change with the temperature, do not have to worry about changes in ambient temperature caused by changes in the level of the trunk. Therefore, fiber optic transmission can be used safely and stably, and can be used in flammable, explosive and other hazardous places.3. Chemical corrosion resistance, long life, the fiber itself is made of quartz (SiO2), the outer packaging material is generally a special engineering plastics, which is highly corrosion-resistant, and therefore very adaptive to the environment, with acid-resistant and alkali-resistant properties.4. Less metal, which is conducive to the rational use of resources. Copper cable core made of copper, the use of metal, and the quality of large, not conducive to the rational use of resources, but also the phenomenon of cable theft. Optical fiber made of silica, less metal, light weight, not only laying favorable, but also conducive to the rational use of resources. 5. Due to the low heating temperature of high-speed copper cables (the same current, the same cross-section of copper-core cables heat than aluminum-core cables is much smaller, safer to run, copper-core cables with low power consumption) copper resistivity is lower than the aluminum cable, copper-core cables, copper-core cables, the resistance to aluminum-core cables, the connector is unstable, the oxidation will lead to contact resistance increases, heating often accidents. Therefore, the accident rate is much larger than the copper core cable. Copper core cable construction is convenient: copper core flexibility is good, the allowable bending radius is small, easy to bend, easy to pipe through; copper core fatigue resistance, even if repeated bending is not easy to break, wiring is convenient; In addition, due to the high mechanical strength of the copper core, so it can withstand a large mechanical tensile force.

Second, the advantages and disadvantages of high-speed copper cable and aluminum alloy wire and cable comparison: 1. High-speed copper cable has a low resistivity: the resistivity of the aluminum core cable is about 1.68 times higher than that of the copper core cable. 2. High-speed copper cable extends well: 3. High-speed copper cable has high strength: the permissible stress at room temperature: copper 20, aluminum 15.6kgt/mm2. 4. High-speed copper cable fatigue resistance: the aluminum is also easy to fracture even after repeated bending, copper is not easy to fracture. 5. 5. High-speed copper cable stability, corrosion resistance: copper core has oxidation and corrosion resistance, but the aluminum core is susceptible to oxidation and corrosion.-3、About Evergrande Electronic Products Network platform related to the introduction and sales of products briefly: Evergrande Electronic Products Network - a professional agent / production / sales of a variety of {connectors | wiring harness | wire and cable products }; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand what connectors | harness | wire and cable products we can provide solutions, please contact the following Division I business personnel; If you have related [connectors | wire harness | wire and cable products] sales / resources and promotion needs, please click on the "¡¡ Business Cooperation ←" with the person to discuss!