Underground electrical conduit pipe

Underground electrical conduit pipe is a pipe specially used for laying power lines. Its main function is to protect wires and cables from external interference and damage. ‌ Underground electrical conduit is also called power threading pipe or wire protection pipe. It plays a key role in ensuring the safety and stability of power transmission.

Underground electrical conduit pipe (1)

Function

The main function of Underground electrical conduit pipe is to ensure stable power supply, optimize urban spatial layout, and enhance the comprehensive disaster prevention capacity of the city. ‌

By laying cables underground, Underground electrical conduit pipe provides a safe, stable and externally-free environment for cables, effectively preventing damage and failure of cables caused by natural environmental factors (such as wind, rain, sun, freezing, etc.) and human factors (such as construction damage, theft, etc.). Regardless of spring, summer, autumn and winter, or the alternation of day and night, underground pipelines can ensure that electricity is continuously delivered to various areas of the city to meet the continuous operation of industrial production and various electricity needs of residents’ lives.‌

Underground electrical conduit pipe (2)

Underground electrical conduit pipe construction plan

Preparation work before construction

Before the construction of Underground electrical conduit pipe, detailed preparation work is required. Here are some key preparation steps:

1. Pipeline design: Design the Underground electrical conduit pipe according to the needs of the power system and geographical conditions. Considering safety and reliability, the design must meet relevant standards and specifications.

2. Material procurement: According to the design requirements, purchase standard power pipeline materials. Ensure that the quality and quantity of the materials meet the construction needs.

3. Geological survey: Conduct geological surveys to determine the appropriate location for pipeline laying. Geological surveys include geological exploration and underground pipeline detection to ensure that no damage is caused to other underground facilities during construction.

4. Construction plan preparation: Prepare a detailed construction plan based on design requirements and site conditions. The plan needs to include information such as construction time, equipment used, and personnel arrangements.

Construction steps

1. Determine the laying path

Before the construction of Underground electrical conduit pipe, it is necessary to determine the appropriate laying path. The laying path should consider the following factors:

Power system requirements: Ensure that the pipeline path can meet the needs of the power system, such as power transmission capacity and power supply range.

Geological conditions: Select a geologically stable area for laying to ensure the safety and reliability of the pipeline.

Other underground facilities: coordinate with other underground facilities to avoid interference and damage to other facilities.

2. Pipeline laying

According to the laying path, the laying of underground electrical conduit pipe is carried out. During the laying process, the following steps need to be followed:

Preparation: clean the laying path to ensure that there are no debris and obstacles on the path.

Laying method: select the appropriate laying method according to the pipeline type and design requirements. Common laying methods include excavation laying, pipe jacking laying, etc.

Pipeline installation: according to the design requirements, the pipeline is installed. The installation work includes pipeline connection, fixing and sealing, etc.

Environmental protection: During the laying process, environmental protection work needs to be done well. In particular, vegetation and buildings around the laying path need to be protected and repaired.

3. Installation and grounding

The installation and grounding of underground electrical conduit pipe are very important steps, which directly affect the safety and reliability of the system. When carrying out installation and grounding work, the following precautions need to be followed:

During the installation process, it is necessary to strictly follow the design requirements and installation specifications to ensure the safety and stability of the pipeline.

Grounding work is a key step to ensure the safe operation of the power system. It is necessary to ensure that the pipeline is well grounded to reduce electrical corrosion and prevent problems such as electric shock.

4. Construction quality inspection

After completing the construction of the underground power pipeline, quality inspection is required. The quality inspection includes the following:

Pipeline surface inspection: Check whether the pipeline surface is flat, without cracks and damage.

Interface inspection: Check whether the pipeline interface is tightly connected and perform a leakage test.

Grounding inspection: Check the connection of the grounding system and perform a grounding resistance test.

Safety precautions

When carrying out the construction of Underground electrical conduit pipe, it is necessary to strictly abide by the relevant safety regulations to ensure safety during the construction process:

The staff must have relevant technical knowledge and safety awareness, and carry out necessary training and guidance.

Obvious warning signs need to be set up at the construction site to ensure the safety of personnel during construction.

Use appropriate construction equipment and tools to ensure safety and efficiency during the construction process.

Strictly abide by the construction plan to ensure coordination and smooth progress during the construction process.

Regularly check the safety status of the construction site to promptly discover and resolve safety hazards.

Underground electrical conduit pipe (3)

Advantages

Underground electrical conduit pipe transfers power lines from the air to the ground, greatly releasing the city’s ground space, reducing the visual impact of telephone poles and overhead lines on the urban landscape, and making the city’s sky more open and tidy. This not only helps improve the overall image and quality of the city, but also provides more possibilities and flexibility for the city’s road traffic, building layout, etc. Without the criss-crossing overhead lines, the city’s space appears more orderly and spacious.

Underground electrical conduit pipe has significant advantages when responding to natural disasters. Compared with overhead lines, underground pipelines are less susceptible to direct impact and damage from natural disasters and can maintain relatively stable power transmission in harsh natural environments. During disasters, stable power supply is crucial for rescue and relief work. Buried pipelines can provide continuous power support for key places such as hospitals, emergency command centers, and communication facilities, ensuring the normal operation of basic functions of the city.‌

 

Underground electrical conduit pipe material

Commonly used pipe materials in underground power grid construction include PVC pipes, PE pipes, etc. These pipe materials have different characteristics and scope of application.

PVC pipe

PVC electrical conduit pipe is a commonly used pipe material and is also widely used in underground power grid construction. PVC pipes are corrosion-resistant, pressure-resistant, and wear-resistant, and can meet the needs of underground cable laying. In addition, PVC pipes have high insulation properties and can prevent leakage.

PE pipe

HDPE electrical pipe is an excellent cable protection pipe material and is widely used in various power construction projects. PE pipes have excellent properties such as corrosion resistance, pressure resistance, heat resistance, and cold resistance, and can meet various requirements for pipeline materials in underground power grid construction. In addition, PE pipes are very flexible and bendable, and can be bent and laid according to the direction of underground pipelines.‌

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