Professional Answer: Classifying transmission lines is essential for accurate electrical analysis and for selecting the right equipment. The main reason for this classification is that the electrical characteristics (resistance, inductance, and capacitance) behave differently depending on the line's length. For example, the effect of capacitance, which is negligible in a short line, becomes a major factor in medium and long lines. This affects everything from calculating power losses to managing voltage stability.

At Ningbo Changshi, our line of tension stringing equipment and tools is designed to meet the specific requirements of all three types of lines, from the low-tension needs of shorter, distribution-style lines to the high-capacity, precision-engineered solutions required for stringing the heavy, bundled conductors of long transmission lines.