Cable and overhead line and the advantages of overhead cable

Aerial cable and power cable, what are the advantages and disadvantages?

Answer: distribution line is an important part of the power system, according to the structure can be divided into two categories: overhead lines and cable lines. Overhead lines will be set up in the tower on the wire and exposed to the air, the cable line cable is laid underground or underwater.

What is the difference between the cable line and the aerial cable? What are the advantages of aerial cable?

The advantages of aerial cable are simple structure, convenient installation, less investment, high transmission capacity, high voltage, good heat dissipation condition, and convenient maintenance. The disadvantage is that complex networks and centralized, not easy to set up; in urban areas with dense populations is erecting unsafe, the appearance is not beautiful, poor working conditions, and vulnerable to environmental conditions, ice, wind, rain, snow, temperature, chemical corrosion, lightning, and other effects.

Compared with aerial cable, cable lines have the following advantages:

1. It is not susceptible to the impact of the surrounding environment and pollution, high reliability.

2. The insulation distance between the lines is small, the area is small, and no interference wave.

3. The ground and space are not safe, reliable, and easy to expose.

Disadvantage is:

1. The cost is high, and the one-time investment cost is relatively large. 

2. The cable line is not easy to change and branch. 

3. The cable fault detection and maintenance is difficult, need to have a higher professional and technical level of personnel to operate.