With the development of power systems and the improvement of their intelligence, optical cable technology has been increasingly widely used. Among them, OPGW optical cable is a special type of optical cable, which is mainly used in power systems and is often used for optical cable communication, monitoring and protection of power transmission lines. This article will analyze OPGW optical cable from two aspects: application and technical characteristics.
1. Communication of power system
There is a large amount of information exchange and data transmission in the power system, and optical cable communication technology can better meet this demand because optical cable communication has the characteristics of high speed, low consumption, and large bandwidth. OPGW optical cable has dual functions, which can transmit both power signals and optical communication signals, and can realize the simultaneous transmission of power and communication to meet the communication needs of power system.
2. Monitoring and protection
The monitoring and protection of power transmission lines are crucial to the safe operation of power systems. OPGW optical cable can realize real-time monitoring of power transmission lines through fiber grating sensing technology, detect line temperature, wind load, vibration and other parameters, and warn and promptly handle possible line faults. At the same time, OPGW optical cable can also be used for lightning protection and grounding protection to ensure the safe operation of power systems.
1. Structural features
The structure of OPGW optical cable is composed of optical fiber and metal conductor. The optical fiber and metal conductor are located in the same cable core of the optical cable at the same time, which can transmit both power signals and optical communication signals. Since the optical fiber and metal conductor are closely combined, they have high corrosion resistance and mechanical strength.
2. Technical features
The technical features of OPGW optical cable mainly include the following aspects:
(1) Good optical performance: The optical fiber used in OPGW optical cable has high optical performance and can transmit high-speed and large-bandwidth optical signals.
(2) Good electrical performance: The metal conductor of OPGW optical cable has good electrical performance and can transmit high-voltage power signals.
(3) High mechanical strength: Both the metal conductor and optical fiber of OPGW optical cable have high mechanical strength and can withstand environmental conditions such as vibration and wind load of power lines.
(4) Corrosion resistance (4) Good corrosion resistance: The metal conductor of OPGW optical cable adopts aluminum-magnesium alloy, which has good corrosion resistance and can operate stably for a long time under harsh environmental conditions.
(5) Easy installation: OPGW optical cables can be installed at the same time as power transmission lines, avoiding the cost of installing communication lines separately and saving wiring space and resources.
(6) Protection: OPGW optical cables can be used for lightning protection and grounding protection to ensure the safe operation of the power system.
As a special type of optical cable, OPGW optical cable has many advantages and characteristics and is widely used in communication, monitoring and protection of power systems. OPGW optical cable has dual functions, which can transmit both power signals and optical communication signals, and can meet the communication needs of power systems. At the same time, the metal conductor and optical fiber of OPGW optical cable have high mechanical strength and corrosion resistance, and can operate stably for a long time under harsh environmental conditions. Therefore, OPGW optical cable will continue to play an important role in the power system.