For high-voltage cables, the main types we can observe include overhead lines on utility poles and underground cables in utility tunnels. The selection of high-voltage cables involves highly complex considerations due to their extensive variety. Below, we will explore the principles and requirements for high-voltage cable selection.

In simple terms, the difference between Soft Drawn and Hard Drawn copper lies in the manufacturing process (specifically "Annealing"), rather than the material itself. Both typically use high-purity electrolytic copper.
Regarding your question about IEC 60228, Class 5 and Class 2 refer to the geometric structure of the conductor, whereas Soft/Hard drawn refers to the physical temper (hardness) of the metal. These are two different dimensions of classification.

When facing engineering projects around the world, have you ever been perplexed by the complex standard systems when selecting telecommunication cables? National Standard (GB), American Standard (UL/ANSI), and European Standard (IEC/EN) are like three different "languages," understanding the differences between them is key to making correct and efficient procurement decisions.

Have you ever been puzzled by the huge price differences when purchasing communication cables (such as Ethernet cables, phone lines, coaxial cables)? Products that seem similar may vary in price several times over. Behind this discrepancy lies a clear logic, as prices directly reflect the "intrinsic value" of the cable.

Behind a grand communication project lie numerous unassuming cables, tirelessly carrying vast amounts of data. Have you ever wondered how coils of high-quality communication cables transform from raw materials into the "neural network" of modern society? Today, we will delve into a modern cable factory that complies with Chinese standards (GB) and industry norms—Henan Yellow River Cable Co., Ltd., to reveal the birth journey of communication cables from drawing to testing.

In everyday life, the terms "wire" and "cable" are often used interchangeably, but in reality, they represent different electrical products. Understanding their differences not only helps in selecting the right products but also ensures electrical safety. This article will provide a detailed analysis of the differences between wires and cables and their respective application scenarios.