Why Does The Down Lead Of The Optical Cable Need To Be Grounded At Three Points?
Firstly, the role of optical cable down conductors
Fiber optic cables are an important component of optical communication systems, mainly used for connecting optical fibers and transmitting signals such as telephone and data. The down lead of an optical cable is a cable that leads the cable into the ground and connects it to the equipment through the down lead, enabling signal transmission. Optical cable down conductors are usually used in overhead or underground optical cable introduction systems, and their role is of great importance.
The main functions of optical cable down conductors are as follows:
1. Protecting optical cables: The down lead of optical cables can effectively protect the connection points and lines of optical cables from external disturbances and damage.
2. Participate in grounding: The down lead of the optical cable can participate in the grounding system, playing a role in connecting the optical cable to the ground.
3. Information transmission: The down lead of the optical cable can also transmit information, serving as a transfer node to transmit the signal of the optical cable to other devices.
The principle and necessity of second and third point grounding
The role of optical cable down conductors in grounding systems is very important, as the ground grounding system is a necessary condition to ensure equipment operation and personnel safety. Three point grounding is an effective way of grounding.
The principle of three-point grounding is to install three grounding facilities in the grounding system, namely ground grounding device, lightning protection grounding device, and power supply grounding device, to ensure equipment grounding and eliminate leakage problems caused by grounding resistance. The combination of the three can form a complete grounding system.
The necessity of three-point grounding lies in ensuring the safe operation and adaptability of the equipment. When the equipment is running, the generated current will return to the ground through the grounding system, so a good grounding system is a guarantee for the safe operation of the equipment.
Thirdly, Summary
The three-point grounding of the down lead of optical cables is an important way of grounding systems, which can ensure the safe operation and adaptability of equipment, as well as effectively transmit information and protect optical cables. The use of this method is very necessary, especially in the fields of telecommunications, broadcasting, computer, etc., the construction of grounding systems must follow this method.
