
What is the fundamental difference between electricity transmission and distribution?
2025-08-09This is a key question that helps define our industry. The easiest way to understand the difference is by using a road system analogy.
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Electricity Transmission is like a major highway system. It involves moving vast amounts of electrical power over long distances at extremely high voltages (typically 275kV, 400kV, or higher). This is a bulk transfer of energy from large power plants to regional substations. The infrastructure for this stage is characterized by large steel pylons and extensive overhead lines, and sometimes underground cables for sensitive areas. Ningbo Changshi's OHTL tension stringing equipment is specifically designed for the construction and maintenance of these large-scale transmission projects.
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Electricity Distribution is the local road network. It takes the electricity from regional substations and "distributes" it to individual homes, businesses, and industrial facilities. This process operates at lower voltages (e.g., 11kV, 33kV) and covers shorter distances. The infrastructure is smaller, using wooden or smaller steel utility poles and a combination of overhead and underground cables. We provide a full range of Underground cable laying Equipment and tools essential for these localized projects.
In short, transmission handles the bulk long-distance journey, and distribution handles the final delivery to the end-user.