1. Mechanical equipment performance.
Compressive strength of pure copper conductor. The elongation is greater than that of copper-clad aluminum conductors. In other words, pure copper is superior to copper-clad aluminum in mechanical equipment performance. Copper-clad aluminum conductor is much lighter than pure copper, so the overall net weight of copper-clad aluminum cable is lighter than pure copper conductor cable, which is convenient for cable transportation and cable construction. In addition, copper-clad aluminum is a little softer than pure copper. Cables produced with copper-clad aluminum conductors are superior to pure copper cables in terms of flexibility.
2. Electrical equipment performance.
Due to the poor electrical conductivity of aluminum than copper, the resistance measurement of copper-clad aluminum conductors is greater than that of pure copper conductors. When the frequency exceeds 5mHz, there is no significant difference between the communication between the two different conductors here and the attenuation coefficient of the AC resistor. At 5mHz, the current flows near the surface about 0.025mm thick, and the copper layer thickness of the copper-clad aluminum conductor is about twice that thickness. For coaxial cables, because the data signal transmitted is higher than 5mHz, the actual transmission effect of copper-clad aluminum conductors and pure copper conductors is the same. To a certain extent, the return loss index of copper-clad aluminum cable is better than that of pure copper conductor cable.
Step 3: Rationality
Copper clad aluminum conductors are more expensive than pure copper conductors of the same net weight. However, the same total weight of copper-clad aluminum is much longer than the pure copper conductor, and the cable is calculated according to the length. The same net weight, copper-clad aluminum wire is 2.5 times the length of copper core wire, the price is only a few hundred yuan a ton. On the whole, copper-clad aluminum has great advantages. Because the copper-clad aluminum cable is relatively light, the logistics cost of the cable is high. The installation and construction cost will be reduced, which will bring some convenience to the project construction.
4. Easy to maintain.
The application of copper-clad aluminum can reduce network problems and prevent Internet workers from cutting the core in winter and cutting the skin in summer (aluminum strip winding or aluminum alloy tube products) during maintenance. Due to the relatively large expansion coefficient of the copper inner conductor and the aluminum outer conductor of the cable, in the hot summer, the aluminum outer conductor has a large extension, and the copper inner conductor is relatively contracted, which cannot fully contact the ductile metal shrapnel of the F head seat. In the cold winter, the aluminum outer conductor is larger and the shielding layer falls off. When the copper clad aluminum inner conductor is selected for coaxial cable, the distance between the linear expansion coefficient and the aluminum outer conductor is small. When the temperature changes, the common faults of the cable core are greatly reduced, improving the transmission quality of the Internet.
Copper-clad aluminum cable.
Copper-clad aluminum wire refers to the aluminum copper core cable as the main body, coated with a certain proportion of copper layer cable, can be used as a coaxial cable conductor and electrical equipment weapons in the cable conductor. The proportion of aluminum is small, but the welding performance is not very good, so in the aluminum business, this copper-clad aluminum wire can not only take advantage of the advantages of small aluminum proportion, but also improve the welding performance. Suitable for power engineering. In the field of household appliances, the type level is international.
Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098