Overhead and underground transmission lines are the two primary methods for transporting electricity. Each method has distinct advantages and disadvantages related to cost, reliability, maintenance, and environmental impact.

• Overhead transmission lines: These lines use bare conductors supported by poles or towers. They are generally more economical to install and easier to repair, as the infrastructure is fully visible and accessible. However, they are more susceptible to damage from severe weather, wildlife, and natural disasters.

• underground Transmission Lines: These lines use insulated cables buried in trenches. They are more aesthetically pleasing and have a higher resilience to external factors like weather. However, the initial construction costs are significantly higher, and locating and repairing faults is a complex and time-consuming process.

At Ningbo Changshi, we provide a full range of OHTL stringing equipment and underground cable laying equipment to support both types of projects, ensuring our clients have the right tools for their specific needs.