Direct Burial Cable | Underground Fiber Optic Cable for Harsh Environments

Abstr: This article will introduce the application of direct buried cable and underground optical cable in harsh environments. Describe their characteristics, advantages, and why they can operate stably under severe conditions, and also mention relevant installation and maintenance points.

direct burial cable,Underground fiber optic cable,Harsh Environments

Table of Contents:

Overview of directly buried cables

- Introduction to underground optical cables

Application advantages in harsh environments

- Installation points

- Maintenance precautions

Overview of Direct Buried Cable

Direct buried cable is a type of cable that can be directly buried underground. It usually has a strong outer protective structure to cope with the complex environmental conditions underground. This kind of cable has a wide range of applications in power tranSMission, communication and other fields. In the power supply network of some cities, direct buried cables are widely used because they do not require additional pipeline laying and are directly buried underground, saving space and cost. Its outer layer is generally made of high-strength polyethylene or other wear-resistant and corrosion-resistant materials, which can effectively resist the erosion of chemical substances, moisture and mechanical external forces in the soil.

Introduction to Underground Optical Cable

Underground fiber optic cable is a fiber optic cable specially used for underground communication transmission. It carries a large number of data and information transmission tasks, such as Internet signals, telephone communications, etc. The core of underground fiber optic cable is optical fiber, these small glass or plastic fibers can transmit data at high speed in the form of optical signals. Similar to directly buried cables, underground fiber optic cables also need to have good protection properties. Its exterior is usually wrapped with multiple layers of protective materials, including waterproof layers, armor layers, etc., to ensure the safe and stable operation of optical fibers in harsh underground environments.

Application advantages in harsh environments

In harsh environments, directly buried cables and underground cables have significant advantages. First, their protective structure allows them to adapt to extreme temperature changes. Whether in the cold northern regions or the hot southern desert regions, they can maintain normal working performance. Secondly, for areas with harsh soil conditions such as moisture and salinity, the corrosion resistance of these cables and optical cables can prolong their service life. For example, in coastal areas, where the salt content in the soil is high, ordinary cables may be quickly damaged by corrosion, but directly buried cables and underground optical cables can effectively resist this erosion through special protective design. In addition, their underground burial method can also avoid damage from external human factors, such as vehicle crushing, construction damage, etc., thus improving the stability and reliability of communication and power transmission.

Installation points

When installing directly buried cables and underground optical cables, there are several points to pay attention to. The first is the burial depth. Generally speaking, in order to avoid being affected by ground activities, they need to be buried below a certain depth, usually between 0.7 meters and 1.2 meters. The specific depth should be determined according to the local geological conditions and use requirements. Secondly, during the burial process, attention should be paid to keeping the cables and optical cables straight to avoid excessive bending or twisting, otherwise it may affect their performance. In addition, at the joints of the cables and optical cables, strict sealing treatment should be carried out to prevent moisture and moisture from entering and affecting the transmission effect.

Maintenance precautions

For the maintenance of directly buried cables and underground optical cables, regular inspections are essential. Inspection personnel need to check whether there are abnormal conditions on the ground, such as ground subsidence, excavation marks, etc., which may pose potential threats to cables and optical cables. At the same time, it is also necessary to detect the performance of cables and optical cables, and measure their resistance, attenuation and other parameters through professional equipment to ensure their normal working condition. If any damage or performance degradation is found, it should be repaired or replaced in time. During the maintenance process, attention should also be paid to protecting the surrounding environment and avoiding unnecessary damage to soil and vegetation.

Related questions and answers:

What harsh environments are directly buried cables suitable for use in?

Answer: It is suitable for use in areas with extreme temperatures, humid saline soils, and environments vulnerable to human damage.

What are the main protective structures of underground optical cables?

Answer: There are mainly multi-layer protective materials such as waterproof layer and armor layer.

What are the requirements for the buried depth when installing a directly buried cable?

Answer: It is generally between 0.7 meters and 1.2 meters, depending on local geological conditions and usage requirements.

How to test the performance of underground optical cables?

Answer: Measure its resistance, attenuation and other parameters through professional equipment.

How to deal with the joints between buried cables and underground cables?

Answer: Strict sealing treatment is required to prevent moisture and moisture from entering.