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How is Fibre installed underground?

Views: 0     Author: Curry     Publish Time: 2023-04-10      Origin: Site

Fibre optic cables are becoming increasingly popular due to their ability to transmit large amounts of data over long distances at high speeds. They are also resistant to interference, making them ideal for use in areas with high electromagnetic interference. Installing fibre optic cables underground is a common practice, and in this article, we will discuss the process of how it is done.

Step 1: Planning and Design

The first step in installing fibre optic cables underground is planning and designing the network. The network must be designed to ensure that the cables are installed in the most efficient manner, and to avoid any obstacles that may cause damage to the cables. The design will take into account the location of existing infrastructure such as water mains, gas pipelines, and other utilities.

Step 2: Trenching

Once the design has been completed, the next step is to dig a trench for the cables. This is done using a trenching machine, which creates a narrow and deep channel for the cables to be installed. The width and depth of the trench depend on the size of the cables and the type of soil they will be buried in.

Step 3: Cable Installation

Once the trench has been dug, the next step is to install the fibre optic cables. This is done by pulling the cables through the trench using a cable pulling machine. The cables are typically bundled together and placed in a protective sheath to prevent damage during installation.

Step 4: Splicing and Termination

Once the cables have been installed, the next step is to splice them together. This is done by fusing the ends of the cables together using a special machine. The splices are then placed in protective enclosures to prevent damage.

The final step is to terminate the cables at either end of the network. This is done by connecting the cables to network equipment such as switches and routers.

Step 5: Testing

Once the cables have been installed and terminated, the final step is to test the network to ensure that it is functioning correctly. This is done using specialized equipment that checks the signal strength and quality of the network.


Installing fibre optic cables underground is a complex process that requires careful planning, design, and installation. It is important to ensure that the cables are installed correctly to prevent damage and to ensure that the network functions correctly. By following the steps outlined in this article, you can ensure that your fibre optic network is installed correctly and will provide reliable and high-speed data transmission for years to come.

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