News & Solutions-The Difference between Directly Buried Optic Cable and Aerial Optic Cable
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The Difference between Directly Buried Optic Cable and Aerial Optic Cable
Release Date: 2024-09-12

Direct-buried optic cable is a common type of optic fiber communication cable used to lay optic fiber networks directly underground. It is a specially designed optic cable with pressure, corrosion and weather resistance, suitable for long-term safe and stable use in soil. Direct buried optical cable is an indispensable part of modern communication infrastructure construction, widely used in cities, villages, highways, railways and various industrial parks and other places.


1. What is direct-buried optic cable

Direct-buried optic cable is a type of optical cable specially used for laying optical fiber communication lines directly underground. It consists of multiple fiber bundles, which are covered with a protective layer and protective sleeve to ensure the safety and reliability of the fiber. Direct-buried optical cable has the following characteristics:


Strong voltage resistance: The direct-buried cable is specially designed to withstand the pressure in the underground environment, including the pressure that may be brought by pedestrian traffic, vehicles, and underground engineering construction.

Good corrosion resistance: The direct buried optical cable uses special materials and treatment processes, which can resist the acid and alkali corrosion in the soil, humidity and chemical substances to the optical fiber.

Excellent weather resistance: The direct buried optical cable outer coating has good weather resistance, which can maintain the stability and reliability of the optical fiber under various climatic conditions.

High-bandwidth transmission: Due to the use of optic fiber as a transmission medium, direct-buried optic cables can provide high-speed, high-bandwidth communication transmission to meet the needs of modern information transmission.


2. The difference between directly buried optic cables and aerial optic cables

Features of directly buried optical cable:


Higher security: Directly buried cable underground layout, will not be affected by external weather factors and damage, with higher security.

Better aesthetics: Because the directly buried optical cable is hidden in the ground, it does not occupy the air space, making the environment more tidy and beautiful.

High construction cost: Directly buried optical cable needs to be excavated and buried, the construction cost is relatively high, but the operation and maintenance cost is low.

Features of overhead cable:


Easy installation: The overhead cable is suspended on the pole, cable bridge and other heights, and the installation is relatively simple and quick.

Easy maintenance: Because the cable can be directly observed and contacted, it is more convenient to repair and replace.

Weather: Overhead cable is vulnerable to adverse weather conditions, such as strong winds, lightning, etc., which may cause signal interruption and damage.

According to the specific needs and environmental conditions, choose the appropriate cable layout. Direct-buried optical cable is suitable for places requiring high safety and aesthetics, such as urban, rural and other underground communication construction; The aerial cable is suitable for more remote areas or places that need to be temporarily laid, such as mountain areas and temporary activity venues. The two optical cable layout modes have their own advantages and application scenarios, and you can select them based on your specific requirements.


In summary, the direct-buried optical cable is a kind of optical fiber communication cable laid directly in the ground, which has the characteristics of pressure resistance, corrosion resistance and weather resistance, and is widely used in cities, villages, highways, railways and other places. In contrast, the overhead cable is arranged by hanging at a high place, which is easy to install but is greatly affected by weather conditions. Select an appropriate cable layout mode based on actual requirements and environmental conditions to meet the reliability and adaptability requirements of the communication network.


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