Power cable has been invented for more than a hundred years, and it has been more and more widely used as the times progress. The copper conductor power cable nowadays is mainly used for underground burying, because it can resist high-strength compression on the ground and has a high degree of corrosion resistance. In the construction sites of many major projects, insulated power cable is an indispensable role.
Here is the content list:
- What role does power cable play in the domestic market?
- How is the structure of the power cable designed?
- What are the advantages of power cable?
What role does power cable play in the domestic market?
Power cable is a large class of electrical products used in the fields of power transmission and distribution, power transmission, sound, text, image, and other information dissemination and lighting.
What's more, protected power cable is an indispensable basic equipment for the manufacture of various motors, electrical appliances, and meters. It is also a necessary basic product for power infrastructure construction, new smart grids, and new energy industries.
The power cable industry occupies a large part of the output value of the domestic electrical industry, and is the second largest industry in our country after the automobile industry. Now, the output value of domestic power cable has surpassed other countries, becoming the world's first.
The huge production capacity formed by our power cable enterprise has impressed the world. With the continuous expansion of the domestic power industry, data communication industry, urban rail transit industry, automobile industry and other industries, the demand for power cable will also grow rapidly, and the power cable market has huge development potential in the future.
How is the structure of the power cable designed?
Power cable is a cable used to transmit and distribute electrical energy. It is often used in urban underground power grids, power station outlet lines, internal power supply in industrial and mining enterprises, and underwater transmission lines across the river.
A power cable is a wire core made by twisting one or several wires, wrapped with a corresponding insulating layer, and covered with a sealed metal or plastic protective layer. This structure can protect the core from external damage.
- Core
The core is the conductive part of the power cable, used to convey power, and is the “core” section.
- Insulation layer
The insulating layer can electrically isolate the wire core from the outside world or other ones to ensure electric energy transmission. It is an indispensable part of the power cable structure.
- Shield layer
Power cables of 15 KV and above generally have conductor shielding layer and insulating shielding layer.
- Protective layer
The function of the protective layer is to protect the power cable from the intrusion of external impurities and moisture, and to prevent the power cable from being directly damaged by external force.
What are the advantages of power cable?
There are basically two modern transmission and distribution lines, overhead power lines and power cable lines. In places with dense urban residents or special occasions, for safety reasons, power cables are basically used, which has high practicability and safety performance.
Power cable occupies less land, because it is generally buried in the soil or indoors, in trenches, tunnels, and the insulation distance between the lines is small, so there is no need for towers. The power cable laid underground does not occupy ground space, and the same underground passage can accommodate multiple circuits.
Power cable has high reliability, natural weather conditions (such as lightning, wind and rain, salt spray, pollution, etc.) and the surrounding environment have little influence on the cable, which ensures stable transmission performance and high reliability.
Power cables have favorable conditions for the development of ultra-high voltage and large capacity, such as low temperature and superconducting power cables. Its maintenance workload is less, so the operation and maintenance costs are relatively small.
Although insulated power cable has many advantages, it has disadvantages such as high cost and difficulty in troubleshooting and complicated cable joint technology.
Therefore, the person in charge of the project should weigh the pros and cons in the selection. You can give the choice of copper conductor power cable to People's Cable Group Co., Ltd., as a professional aluminum power cable manufacturer, we will provide comprehensive services and support to help you play its true value, reduce costs for the project, and in the long-term increase income.
