Professional Answer: transmission lines can be classified in two primary ways:

1. By Location:

   • Overhead transmission lines: These are the most common type, consisting of bare conductors suspended from towers or poles. They are typically used for long distances and require specialized stringing equipment, which is our core product line.

   • underground Transmission Lines: These lines consist of insulated cables buried beneath the ground. While more expensive to install, they are less susceptible to weather-related outages and are often used in urban or environmentally sensitive areas. We provide a full range of underground cable laying equipment and tools to support these projects.

2. By Length and Voltage:

   • Short Lines: Under 50 km in length, typically with voltages below 20 kV.

   • Medium Lines: 50 km to 150 km in length, with voltages ranging from 20 kV to 100 kV.

   • Long Lines: Over 150 km in length, with voltages above 100 kV.

Our extensive product offerings support the full spectrum of these projects, from the simplest installations to the most complex high-voltage, long-distance transmission lines.