Matters Needing Attention In The Application Of Aluminum Alloy Cable

China's copper has a small amount of storage, and as a strategic material, it strongly advocates the use of Aluminum Alloy Cable for power lines. The use of aluminum core or copper core for cable has always been the topic of cable selection. With the development of urbanization in China, urban distribution network as the infrastructure for urban construction, the demand for power cables is increasing, and power cables are in the grid. The proportion of the cost of construction has increased significantly. In general, we commonly use AA-8000 series Aluminum Alloy. At present, China's electrolytic aluminum production capacity is excessive, aluminum alloy cable is more excellent in mechanical properties than pure aluminum core cable, and the call for aluminum alloy cable is raised again. It includes CSA Aluminum Alloy Cable, MHF aluminum conductors, etc. Through the analysis and comparison of the differences in structural dimensions and electrical properties of copper core and alloy cables Of Aluminum Alloy GB IEC Standard in engineering applications, the problems to be considered in the application of aluminum alloy cables are proposed.

The maximum allowable short-circuit temperature and thermal stability coefficient of aluminum alloy cables are lower than those of copper-core cables. Thermal stability check should be carried out during design to ensure safe and reliable operation of the power grid.