Lightning protection for straight-type optical cable lines: ①In-office grounding mode, the metal parts in the optical cable should be connected at the joints, so that the reinforcing core, moisture-proof layer, and armor layer of the relay section of the optical. Lightning protection for straight-type optical cable lines: ①In-office grounding mode, the metal parts in the optical cable should be connected at the joints, so that the reinforcing core, moisture-proof layer, and armor layer of the relay section of the optical. Lightning is an electrical discharge within clouds either from cloud to cloud or from cloud to the earth. It has great impacts on communication stations and other signal circuits. For example, it will not only affect all DWDM fiber channels in short bursts, but also affect transmission directions. The major purpose of lightning protection systems is to conduct the high current lightning discharges safely into the Earth/ground. These solutions use two ways of. However, because the optical cable has a reinforced core, it is particularly The directly buried optical cable has an armor layer, so when the optical cable line is struck by lightning, the optical cable can also be burned or damaged. Applying the angle of protection method, one can see the buried conductor shown performs the same protective function as a catenary wire or Earthwire on an Overhead. Fiber optic cables enable high-speed, long-distance data transfer, forming the backbone of modern communication. Yet, outdoors, they face temperature swings, moisture, UV exposure, rodents, and human interference.