What equipment is used for high-voltage transmission lines versus low-voltage distribution lines?

2025-08-10

The type of equipment used depends directly on the voltage level and application.

  • High-Voltage (HV) Lines: These lines typically use large lattice steel towers or robust steel poles. The conductors are often bundled (two or more wires) and are held up by long strings of suspension insulators. Equipment for these lines must be highly durable and rated for extreme voltage.

  • Low and Medium-Voltage (LV/MV) Lines: These lines are often supported by smaller wooden, concrete, or tubular steel poles. They use pin insulators or single disc insulators. The equipment, such as clamps, connectors, and other hardware, is designed for lower voltage ratings and is often simpler and more compact.

Our company, Ningbo Changshi Electric Power Machinery Manufacturing Limited, provides a comprehensive range of tools and equipment for all these voltage levels, from tension stringing equipment for high-voltage OHTL to cable laying tools for underground projects. We are experts in providing the right solutions for any power line construction and maintenance need.

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