Relocation of the transformer station at 600 Dien Bien Phu

Renovation and relocation of the transformer station at 600 Dien Bien Phu – Quanganhcons

Project: Relocation and renovation of the Highway 4 street light power station, ensuring the safety and aesthetics of the power grid, and urban improvement.

Construction location: 600 Dien Bien Phu, Ward 22, Binh Thanh District, Ho Chi Minh City

Investor: Cantavil Company Limited

Contractor: Quang Anh Electrical Construction and Installation Company Limited

Start date: 16/09/2022 – Completion date: 27/09/2022

Overview of the project.

Quanganhcons construction video on work site

Relocation of the existing 400KVA transformer station, changing from the 400KVA gantry transformer station to a single-pole 400KVA steel transformer station, undergrounding 07 3x240mm2 medium voltage lines, supplying foundation construction, installing 6 compartments of Eaton/Cooper RMU cabinets, SCADA. Demolition of BTLT columns and related materials at the existing 400KVA gantry transformer station, returning to Gia Dinh Power Company.

The main construction items include

Undergrounding of 3x240mm2 medium voltage cables

Gathering of machinery, equipment, and materials in preparation for construction work.

To prepare for the construction of a substation, you can gather the necessary machinery, equipment, and materials by following these steps:

1. Determine the list of necessary machinery and equipment: For the construction of a substation, you will need machinery such as excavators, loaders, and trucks to transport construction materials. Equipment such as welders, cutters, compressors, and drills are also essential during the construction process.
2. Evaluate the condition of existing machinery, equipment, and materials: If you already have the necessary machinery and equipment, check them to ensure that they meet the job requirements. If there are any problems or damages, you should repair or replace them.
3. Prepare a list of additional equipment and materials needed: If you don’t have all the necessary equipment and materials, prepare a list and request quotes from suppliers to purchase them. Make sure to pay attention to the quality and safety of the equipment and materials when selecting them.
4. Plan the arrangement and transportation of equipment and materials: Once you have a list of the necessary equipment and materials, plan the arrangement and transportation to the construction site. Consider factors such as terrain, distance, and road conditions to plan the most efficient transportation.
5. Check before use: Before using the equipment and materials, check that all machinery, equipment, and materials have been prepared and installed correctly to ensure the safety of construction workers.

2. Installation of warning signs in the construction area.

You can put up a warning sign for the construction site of a transformer substation and undergrounding by using a construction warning sign. This sign is usually placed near the construction area to alert pedestrians and motorists of ongoing construction activities.

The construction warning sign is typically triangular in shape, with standard colors and dimensions. The sign may include information such as the name of the construction project, the name of the contractor, the construction timeline, and a warning about the danger in the area.

Additionally, you can also set up temporary directional signs to guide pedestrians and motorists through the construction zone. Placing these signs ensures the safety of pedestrians and helps the construction process to proceed smoothly.

3. Cutting of concrete pavement.

Cutting hot mix asphalt road surface is often performed to create vertical cuts on the road surface, reducing tension and minimizing the potential for cracks during the excavation of underground cable channels.

This process is usually carried out after the hot mix asphalt surface has been flattened and compacted. To carry out the cutting process, contractors use specialized road cutting machines to cut through the surface of the road, creating evenly spaced vertical cuts with pre-determined depth and width.

After completing the cutting process, the vertical cuts are adjusted to ensure that they conform to the prescribed depth and width, creating even vertical cuts on the road surface.

Cutting hot mix asphalt road surface is an important step in the process of constructing underground cable channels, increasing the durability and lifespan of the road while reducing future maintenance costs.

4.Breaking of concrete.

The process of chipping and blasting the asphalt concrete road surface after cutting with specialized cutting machines is commonly performed in road construction and maintenance.

Once the cutting process is complete, contractors use chipping and blasting machines to break away the remaining asphalt concrete in the cut sections, creating a smooth and even surface. This process is particularly important when creating access to underground utilities such as water and gas lines, where precise and accurate excavations are required.

Chipping and blasting machines use compressed air to blast away the debris and remove the remaining asphalt concrete from the cut section. The process is closely monitored to ensure that the depth and width of the cut sections are maintained throughout.

The final result of chipping and blasting the asphalt concrete road surface is a clean and even surface, which is ideal for the installation of underground utilities or any other construction work required.

5.Excavation of the sidewalk cable trench, excavation of the PVC pipe-encased underground cable located on the roadside.

The task of excavating and detecting underground electrical cables in the sidewalk area is an important part of building the electrical and telecommunications infrastructure of an area. This excavation process often involves using special tools to excavate soil and search for previously laid underground cables.

However, during the excavation process, it is possible to accidentally hit the underground cable that is running inside a PVC pipe on the roadside. To avoid damaging the electrical cable and PVC pipe, contractors need to locate the exact position of the underground cables before excavating.

The use of modern technologies such as locating devices and electromagnetic scanners helps to locate and determine the positions of underground cables on the sidewalk. At the same time, contractors need to comply with safety regulations for excavation to avoid causing damage to the electrical network and ensuring the safety of workers.

If hitting the underground cable inside the PVC pipe on the roadside occurs, contractors need to take appropriate measures to repair and fix the problem, ensuring that electrical and telecommunications services are provided continuously and stably.

6.Transportation of waste materials by crane.

“The task of transporting the excavated waste using an overhead crane after digging for underground electrical cables is a necessary step in the process.

The excavated waste includes soil, rocks, and other materials that have been removed from the ground during the excavation process. The overhead crane is used to lift and move the waste to a designated location for disposal or further processing.
This task requires skilled operators who are trained in the safe and efficient operation of the crane, as well as proper waste disposal procedures.”

7.Completion of the steel pole foundation pit excavation, fabrication of steel pole foundation reinforcement, pouring of concrete.

Introduction: The installation of a steel pole transformer requires a well-built foundation to ensure stability and longevity. The foundation pit needs to be excavated and completed in a precise manner to accommodate the steel pole transformer. In this article, we will discuss the steps involved in excavating and completing the foundation pit for a steel pole transformer installation.

Step 1: Excavation The first step involves excavation of the foundation pit to the required depth and size. The excavation process must follow proper safety procedures to avoid any accidents or injuries. The excavated soil and debris must be removed and properly disposed of.

Step 2: Processing of steel foundation piles After the excavation is complete, the steel foundation piles are processed to the required size and shape. This process involves cutting and welding the steel piles to ensure they are the correct length and diameter for the transformer.

Step 3: Pouring concrete into the foundation piles Once the steel foundation piles have been processed and installed into the foundation pit, concrete is poured into the piles to form a solid foundation. This process is crucial to ensure the stability and longevity of the steel pole transformer.

Step 4: Finishing touches After the concrete has been poured into the foundation piles, the surface is smoothed out and allowed to dry. Once the concrete has fully cured, the finishing touches are added to the foundation pit to ensure a clean and professional look.

Conclusion: The process of excavating and completing the foundation pit for a steel pole transformer installation requires precision and attention to detail. Following the steps outlined above will ensure a solid foundation for the transformer, and ultimately, a successful installation.

8. Fabrication of reinforcement for pouring concrete into the steel pole body.

Fabrication and installation of steel reinforcement and concrete formwork for pouring the concrete body of the steel column.

During the construction process of a steel column, one of the essential tasks is the fabrication and installation of steel reinforcement and concrete formwork. Steel reinforcement and concrete formwork play a critical role in ensuring the stability and durability of the steel column.

The first step in this process is the fabrication of steel reinforcement and concrete formwork. Steel reinforcement bars are cut and bent to the required shape and size, while the concrete formwork is created to fit the exact dimensions of the steel column. Once the fabrication is complete, the steel reinforcement and concrete formwork are assembled and secured in place.

After the fabrication and assembly of the steel reinforcement and concrete formwork, the concrete is poured into the formwork, filling the space between the steel reinforcement bars. The concrete is then left to cure and harden, creating a solid and durable body for the steel column.

Overall, the fabrication and installation of steel reinforcement and concrete formwork are crucial tasks in the construction process of a steel column. This process ensures that the steel column is stable, durable, and able to withstand the demands of its intended use.

9. Installation of HDPE pipes for underground cables inside the steel pole body.

The task of installing HDPE pipes for waiting for underground electrical cables inside the steel support of the transformer is an important step in the construction process of a transformer station. To carry out this task, the first step is to survey the position of the underground cable to the steel support in order to place the HDPE pipes.

Next, the HDPE pipes are fabricated and accurately placed according to the predetermined size and position. The placement of HDPE pipes must be carefully carried out to ensure durability and safety for the entire underground cable system.

Once the HDPE pipes are in place, the next step is to install the underground electrical cables inside the HDPE pipes. The electrical cables are placed precisely according to the predetermined position and depth to ensure the performance and durability of the underground cable system.

After completing the installation of HDPE pipes and underground electrical cables, the steel support will be filled with concrete to create a solid block and ensure stability for the entire system.

The task of installing HDPE pipes for waiting for underground electrical cables inside the steel support of the transformer must be carried out with caution and accuracy to ensure the performance and safety of the system.

10.Pouring of concrete into the transformer steel pole foundation.

Pouring concrete for the foundation of the steel support column of a transformer is a crucial task in the construction process. This step ensures the stability and durability of the entire transformer station.

To start this task, the excavation work must be completed and the steel reinforcing bars for the foundation must be set in place. The steel bars are precisely arranged according to the design plan, ensuring that they are properly spaced and connected to provide maximum strength and stability for the transformer.

After the steel bars are set up, the next step is to pour the concrete into the foundation area. The concrete is mixed according to the required proportions and then poured into the foundation. The concrete must be distributed evenly and compacted well to ensure the strength of the foundation.

Once the concrete is poured, it must be allowed to cure for a sufficient period of time. The curing time depends on the weather conditions and the type of concrete used. After the curing process is complete, the steel support column can be erected on top of the foundation.

Pouring concrete for the foundation of the steel support column of a transformer is a critical task that requires attention to detail and expertise. This ensures that the transformer is properly supported and functions safely and efficiently.

11. Excavation of the RMU cabinet foundation pit.

Excavation of the foundation pit is an important process in the construction of RMU (Ring Main Unit) cabinets – a central device in the power system. The excavation work of the RMU cabinet foundation pit ensures safe, stable and efficient installation and operation of the cabinet.

Before excavating, technical measurement and planning are carried out to determine the size and location of the pit. Then, excavation is carried out according to the size and depth specified in the plan.

Excavation work must be carried out carefully, ensuring safety for employees and avoiding environmental impacts. After excavation, concrete is poured into the RMU cabinet foundation pit to create a solid foundation and ensure stability for the cabinet.

Excavation of the RMU cabinet foundation pit is an important task that needs to be performed correctly to ensure safety, efficiency and durability of the power system. If you need professional excavation services, please contact us for advice and support.

12. Delivery of the steel pole body, pedestal for transformer support, and terminal box to the construction site.

Delivery of steel pole body, pedestal for transformer support, and terminal box to the construction site is an important step in the process of constructing an electrical power system. The safe and efficient installation and operation of the system relies heavily on this process.

Prior to delivery, technical measurements and planning are necessary to determine the dimensions and location of the pole body, pedestal, and terminal box. Once these are determined, the items can be safely transported to the construction site.

Delivery must be done carefully to ensure the safety of workers and to avoid any negative impact on the surrounding environment. Once the items are delivered, they can be installed and used to provide stable and reliable support for the transformer.

13. Fabrication of RMU cabinet foundation pit reinforcement.

The installation and processing of the foundation steel cage for RMU cabinets is an important stage in the process of constructing an electrical system. The foundation steel cage plays an important role in bearing the load and creating stiffness for the foundation, ensuring stability and safety for the RMU cabinet.

To carry out the installation and processing of the foundation steel cage for RMU cabinets, technical design and work planning must be carried out. Then, the steel bars are cut, bent, and welded according to the prescribed dimensions and patterns.

The processing and installation of the foundation steel cage for RMU cabinets must be carried out with precision and proper techniques to ensure the durability and safety of the cabinet. The foundation steel cage for RMU cabinets needs to be treated for corrosion resistance to ensure durability and safety for the electrical system.

With a team of experienced technicians and modern equipment, we are committed to providing high-quality and timely processing and installation services for the foundation steel cage for RMU cabinets. If you have a need for this service, please contact us for the best consultation and support.

14. Installation of HDPE pipes for underground medium voltage cables at the RMU cabinet foundation pit.

Installing HDPE pipes for waiting for medium voltage submarine cables in the foundation of the RMU cabinet is one of the important tasks in the process of building an electrical system. The use of high-quality HDPE pipes for waiting for medium voltage submarine cables helps to minimize damage caused by collisions and ensures durability for the medium voltage submarine cable system.

We use high-quality HDPE pipes that meet safety standards to ensure the sustainability of your electrical system. The pipes are designed and installed with high precision to ensure stability and safety for the medium voltage submarine cable during operation.

The installation of HDPE pipes for waiting for medium voltage submarine cables in the foundation of the RMU cabinet is carried out by a team of experienced technicians equipped with the latest modern equipment. We are committed to providing high-quality installation services for HDPE pipes, ensuring safety, on-time delivery and durability for your electrical system.

If you are in need of installation services for HDPE pipes for waiting for medium voltage submarine cables in the foundation of the RMU cabinet, please contact us for the best advice and support. We are ready to provide you with the optimal solution to ensure the effectiveness and sustainability of your electrical system.

15. Completion of RMU cabinet foundation pit reinforcement.

Reinforced concrete foundation manufacturing is an important process in the construction of electrical systems, especially for RMU cabinets. The foundation plays an important role in bearing loads and providing stiffness for the cabinet, ensuring stability and safety for the RMU.

To carry out the manufacturing of the reinforced concrete foundation for RMU cabinets, technical design and work planning must be carried out. Then, the reinforcement is cut, bent, and welded according to the prescribed size and design.

The manufacturing process of the reinforced concrete foundation for RMU cabinets must be carried out with precision and technical accuracy to ensure durability and safety for the cabinet. The foundation must be treated to prevent rust and corrosion to ensure the longevity and safety of the electrical system.

With our experienced technical team and modern equipment, we are committed to providing high-quality manufacturing services for RMU cabinet reinforced concrete foundations, ensuring timely completion. If you have a need for this service, please contact us for the best advice and support

16. Delivery of low-medium voltage cables to the construction site.

Delivering medium voltage and low voltage electrical cables to a construction site is a critical step in the installation of a power system. The quality of the cables and the delivery process can greatly impact the safety and efficiency of the electrical system.

At our company, we understand the importance of providing high-quality cables and delivering them in a timely and efficient manner. We specialize in delivering 3x240mm2 medium voltage electrical cables and cv185mm2 low voltage cables to construction sites.

Our team of experienced professionals carefully selects the cables and inspects them to ensure they meet the highest quality standards. We also use state-of-the-art equipment to carefully load and transport the cables to the construction site, ensuring they arrive in pristine condition.

We understand that timely delivery is crucial to the success of any construction project. That’s why we strive to deliver our cables to the construction site on time, every time. Our dedicated delivery team is committed to ensuring that the cables are delivered safely and efficiently, minimizing any potential delays.

If you require 3x240mm2 medium voltage electrical cables or cv185mm2 low voltage cables for your construction project, please contact us for a quote. We are committed to providing you with high-quality cables and timely delivery to help ensure the success of your project.

17. Pouring of concrete into the RMU cabinet foundation pit.

Pouring concrete for RMU cabinet foundation is an essential process in the electrical system construction. The foundation plays an important role in supporting the RMU cabinet and ensuring its stability and safety.

To carry out the concrete pouring process for RMU cabinet foundation, it is necessary to conduct technical design and planning. The concrete mixture is then prepared and poured into the foundation formwork, following the prescribed specifications and standards.

The concrete pouring process for RMU cabinet foundation should be carried out with precision and accuracy to ensure the durability and safety of the cabinet. The curing process should also be carefully monitored to achieve the desired strength and hardness.

With a team of experienced technicians and modern equipment, we commit to providing high-quality concrete pouring services for RMU cabinet foundation, meeting the required standards and schedule. If you need this service, please contact us for the best advice and support.

18. Welding of grounding.

Welding grounding for transformer substations using CADWELD heat welding molds and compounds is a crucial technique for ensuring safety and efficiency in electrical systems. This technique involves creating a permanent, low-impedance bond between the grounding conductor and the ground rod, which provides a low-resistance path for electrical current to flow to the earth.

To perform welding grounding, specialized CADWELD molds and compounds are used, which are specifically designed to ensure proper bonding and conductivity. The process involves cleaning the grounding conductor and ground rod, placing them into the mold, and filling the mold with the CADWELD compound. The compound is then ignited, and the resulting exothermic reaction creates a molten metal connection between the conductor and the rod.

Proper welding grounding is essential for protecting electrical equipment and personnel from electrical surges and other hazards. By using high-quality CADWELD molds and compounds and following best practices for welding grounding, transformer substations can ensure a reliable and safe electrical system.

19. Laying of HDPE pipes and low voltage cables underground.

Pulling HDPE pipes and submarine low-voltage cable are two important tasks in the construction of modern underground power grid infrastructure. These works are carried out using specialized equipment and advanced techniques to pull pipes and cables from point A to point B through the submarine cable system.

Pulling HDPE pipes is the process of pulling large-diameter HDPE pipes (plastic pipes) through the submarine cable system. This work is often used in the construction of low- and medium-voltage underground power grid systems in large cities, ensuring safety and enhancing urban aesthetics. HDPE pipes are lightweight, flexible, and durable over time, making them very suitable for use in infrastructure construction projects.

Submarine low-voltage cable pulling is the process of pulling electrical cables from the transformer station to the distribution stations. This work is an important part of the construction of electrical infrastructure and plays a crucial role in distributing electrical energy to end customers. The use of specialized equipment such as cable pulling machines and special transport vehicles helps to minimize time and costs for submarine cable pulling.

Carrying out the tasks of pulling HDPE pipes and submarine low-voltage cables requires high accuracy and specialized skills. To ensure the effectiveness of the work, contractors need to use advanced equipment and techniques, as well as a team of experienced and specialized personnel in carrying out these tasks.

The process of pulling HDPE pipes and low voltage submarine cables is an important process in building communication network infrastructure. The following are the steps to carry out this process:

Identifying the area where the HDPE pipes and submarine cables need to be pulled. Firstly, you need to identify the area where the HDPE pipes and low voltage submarine cables need to be pulled. This requires you to have a detailed plan to ensure that the necessary equipment and materials are arranged and transported to the right location.

Preparing equipment and materials. After identifying the area to work on, you need to prepare the necessary equipment and materials to pull the HDPE pipes and submarine cables. The required equipment may include cable pulling machines, cable connectors, cable grips, etc. The necessary materials include HDPE pipes, electrical cables, etc.

Excavating the trench before installing pipes and cables. After having prepared all the necessary equipment and materials, you need to excavate the trench to prepare for the installation of pipes and cables. You need to ensure that the excavation is complete and the area is cleaned before starting the work.

Installing HDPE pipes and low voltage submarine cables. After the trench has been prepared, you need to install the HDPE pipes and low voltage submarine cables. This requires you to carry out the work carefully and accurately to ensure that the pipes and cables are installed correctly according to the plan.

Pulling the HDPE pipes and low voltage submarine cables. After the pipes and cables have been installed, you need to pull them. You need to use cable pulling machines to pull the cables and pipes through the trench and ensure that they are pulled gently and do not damage the trench structure.

Checking and maintaining. After the pulling work is completed, you need to check and maintain the system to ensure that it operates well. You need to check the path, the quality of pipes and cables, the length, the tension, etc. Maintaining the system is also an important factor to ensure that it will operate well in the future.

Completing administrative procedures. Finally, after the work of pulling HDPE pipes and low voltage submarine cables is completed, you need to complete administrative procedures to ensure that the system meets legal regulations and is used properly.

Therefore, the process of pulling HDPE pipes and low voltage submarine cables is a complex process that requires carefulness, accuracy, and experience. To ensure that the work is done correctly and meets technical requirements, You should look for reputable and experienced contractors in this field.

Specialized equipment is required for the work of pulling HDPE pipes and underground low-voltage cable.

During the process of pulling HDPE pipes and underground low-voltage cable, it is necessary to use specialized equipment to ensure that the work is done correctly and safely. Below are some specialized equipment commonly used in the work of pulling HDPE pipes and underground low-voltage cable:

Cable puller: Cable puller is an important device for pulling underground low-voltage cables. This device is designed to generate the necessary pulling force to pull the cable through the conduit. Cable pullers come in many different types and sizes, depending on the specific needs.

HDPE pipe puller: HDPE pipe puller is used to pull HDPE pipes. This device is also designed to generate the necessary pulling force to pull the pipe through the conduit. HDPE pipe pullers also come in many different types and sizes, depending on the specific needs.

Pulling cable: Pulling cable is used to connect the cable puller and the underground low-voltage cable. Pulling cable must be carefully selected to ensure durability and strength.

HDPE pipe pulling cable: HDPE pipe pulling cable is also used to connect the HDPE pipe puller and the HDPE pipe. HDPE pipe pulling cable must be carefully selected to ensure durability and strength.

HDPE pipe compression tool: HDPE pipe compression tool is used to compress the end of the HDPE pipe to create a secure joint. This device is also designed to ensure that the joint is tightly compressed and does not leak.

Cable tension meter: Cable tension meter is used to measure the tension of the cable after it has been pulled through the conduit. This device ensures that the cable is pulled with the correct tension to ensure the performance and durability of the system.

Common problems encountered in the process of pulling HDPE pipes and submarine low-voltage cables and how to solve them

During the process of pulling HDPE pipes and submarine low-voltage cables, there may be technical, logistical or safety issues. Here are some common problems and how to solve them:

Cable entanglement This problem occurs when the pulling cable is tangled up. This reduces the efficiency of the pulling machine and prolongs the time to complete the task.

Solution: Use high-quality and highly elastic pulling cables to minimize the entanglement of cables. In case of tangled cables, it is necessary to remove each cable strand to solve the problem.

Cable breakage This problem may occur when the pulling cable is overloaded or worn out due to prolonged use. This will reduce the efficiency of the work and pose a safety risk to workers.

Solution: In case of cable breakage, replace the cable with a new one and check the condition of the cable before use to avoid cable breakage.

HDPE pipe breakage This problem occurs when the HDPE pipe is bent too much or subjected to strong impact. This will reduce the efficiency of the work and may lead to leakage.

Solution: In case of HDPE pipe breakage, replace it with a new one and check the condition of the pipe before use to avoid pipe breakage.

Equipment malfunction This problem may occur when the equipment is malfunctioning due to prolonged use or improper maintenance. This will reduce the efficiency of the work and may pose a danger to workers.

Solution: In case of equipment malfunction, repair or replace the equipment and ensure regular maintenance to minimize the risk of malfunction and ensure equipment efficiency.

Insufficient depth of submarine cables This problem may occur when the submarine cable is placed too deep or too shallow, reducing the ability to transmit electrical energy and increasing the energy depletion of the electrical system.

Solution: In case the submarine cable does not meet the depth requirement, adjust the depth of the cable to ensure the performance of the electrical system.

Risk of impact and intrusion of other equipment This problem may occur when other equipment in the construction area is not properly protected, leading to the risk of impact and intrusion into the area of pulling HDPE pipes and submarine low-voltage cables.

Solution: In this case, it is necessary to ensure the safety of the construction area by setting up barriers and warning signals, as well as monitoring and controlling the movement of other equipment in the area to avoid the risk of collisions and their intrusion.

In conclusion, the task of pulling HDPE pipes and underground low-voltage cables is a specialized work that requires in-depth technical knowledge, logistics, and safety expertise. Applying the correct techniques and specialized equipment, along with ensuring the safety of the construction area, will help ensure efficiency and safety in the job. In addition, common issues need to be promptly resolved to ensure the progress and quality of the work.

20. Laying of medium voltage cables and waiting for power supply for the #RMU 550 Dien Bien Phu,  Nguyen Huu Canh.

Pulling medium voltage underground cables to supply power for the RMU 550 Dien Bien Phu and Nguyen Huu Canh Bridge RMU in Binh Thanh district is one of the important tasks in this project. This requires experienced engineers and technicians for construction, inspection, and maintenance of the electrical system.

Planning the construction work: Before starting the work of pulling medium voltage underground cables, a detailed construction plan needs to be prepared. This plan must include all the tasks to be performed, from preparation to construction, maintenance, and inspection of the electrical system. In addition, it is necessary to identify the necessary technical requirements for construction.

Preparing equipment and materials: After completing the construction plan, equipment and materials must be prepared to carry out the task of pulling medium voltage underground cables. This is an important stage and the quality of the equipment and materials used must be ensured.

Carrying out the work of pulling medium voltage underground cables: After preparing the necessary equipment and materials, the task of pulling medium voltage underground cables is carried out. Cable pulling must comply with technical and safety regulations and ensure the quality of the electrical system.

Inspecting the electrical system: After completing the task of pulling medium voltage underground cables, the electrical system needs to be inspected to ensure that all work is performed correctly and the quality of the electrical system meets the required standards.

Maintenance and operation of the electrical system: Finally, maintenance and operation activities need to be carried out to ensure that the electrical system operates stably and efficiently.

In summary, pulling medium voltage underground cables to supply power for the RMU 550 Dien Bien Phu and Nguyen Huu Canh Bridge RMU in Binh Thanh district is a task that needs to be performed with caution and professionalism.

During the implementation of this task, common issues may arise and solutions for them are as follows:

Environmental impact issue During the construction process, the use of machinery and equipment can cause noise and dust. Therefore, it is necessary to comply with environmental regulations and use necessary measures to minimize the impact on the environment.

Occupational safety issue Pulling high-voltage submarine cables is a highly dangerous job, so ensuring occupational safety for workers and technicians is crucial. Equipment and machinery must be properly maintained, and workers must be trained and equipped with full protective gear.

Quality issue Pulling high-voltage submarine cables must ensure the quality of the electrical system. During construction, it is necessary to perform quality checks and evaluations of the electrical system to ensure that it meets technical and safety standards.

Compatibility issue When performing high-voltage submarine cable pulling work, the compatibility of the electrical system must be ensured. Cable pulling work must be carried out correctly to avoid compatibility issues with the electrical system.

Cost issue Implementing high-voltage submarine cable pulling work can be expensive due to the requirement for expensive equipment and machinery. Therefore, careful planning and cost calculation are necessary to ensure the feasibility of the work.

In summary, the task of pulling high-voltage submarine cables for the RMU 550 Dien Bien Phu, RMU Cau Nguyen Huu Canh, Binh Thanh district is an important task that requires professionalism and high skills of technicians. To successfully carry out this task, it is necessary to comply with safety regulations and ensure the quality, compatibility, and feasibility of the work.

To address common issues in the work of underwater medium voltage cable pulling, the following solutions are necessary:

Ensuring labor safety: It is necessary to ensure that workers and technicians are equipped with adequate personal protective equipment and trained in occupational safety. In addition, a safety plan for the entire construction process must be established, while taking into account hazardous factors such as high voltage, specialized equipment…

Using specialized equipment: To ensure accuracy and effectiveness of the work of underwater medium voltage cable pulling, it is necessary to use specialized equipment such as cable pulling machines, measuring devices, air compressors, welding tools…

Checking the quality of the electrical system: During the construction process, it is necessary to check and evaluate the quality of the electrical system to ensure that it meets technical standards and safety requirements.

Calculating costs: To ensure the feasibility of the work of underwater medium voltage cable pulling, it is necessary to carefully plan and calculate the costs. At the same time, cost-saving solutions should be developed without compromising the quality of the work.

Managing data and documentation: During the construction process, data and documentation should be carefully managed to ensure accuracy and completeness. The information that needs to be managed includes construction plans, technical drawings, technical specifications…

To ensure safety and efficiency in the work of pulling underground medium voltage cables waiting for power restoration at the RMU 550 Electric Bien Phu, Nguyen Huu Canh Bridge RMU, Binh Thanh district, the workers of Dien Quang Anh always pay attention to the following points:

It is necessary to accurately determine the position of the electrical cabinets before starting the cable pulling work. The workers should double-check the information about the coordinates of the electrical cabinets on the drawings and determine their actual location on the site. If there is any error, it should be reported immediately to the team leader or supervising engineer for timely resolution.

Before starting to pull the cable, it is necessary to carefully check the electrical equipment, especially the electrical cabinets and power cut-off devices, to ensure that they are working properly and have sufficient conditions for use. If there is any problem, it should be reported immediately to the supervising engineer or team leader for prompt handling.

During the cable pulling process, the workers need to wear full protective equipment such as helmets, gloves, safety glasses, safety shoes, anti-static coats, etc. to ensure their safety while working.

During the cable pulling process, it is important to pay attention to keeping the cable at the correct length and position that have been determined beforehand. If there is any error, the power cut-off device should be turned off immediately and checked again before continuing the work.

After completing the cable pulling work, it is necessary to check the entire system again to ensure that there are no errors before turning on the power for the system.

21. Installation of warning tape for underground cables and covering of the cable trench.

Installing bricks, underground cable warning tape, and filling in medium voltage cable trenches

When it comes to installing underground medium voltage cables, it is important to take certain precautions to ensure safety and efficiency. This includes the installation of bricks, underground cable warning tape, and the proper filling of cable trenches.

Before installing any cables, it is important to install bricks around the trench to prevent any potential damage caused by excavation equipment. This will help to maintain the structural integrity of the trench and prevent soil collapse or erosion.

Next, it is important to install underground cable warning tape above the cables. This tape will serve as a warning to future excavation teams that there are cables buried below. The tape should be placed at least 12 inches above the cables and run the entire length of the trench.

Finally, once the cables have been laid and connected, it is crucial to properly fill in the trench to protect the cables from damage. The trench should be backfilled with the appropriate materials, ensuring that the cables are properly supported and protected.

By taking these precautions during the installation process, you can ensure the safety and longevity of your underground medium voltage cable system.

22. Connection of low voltage output cables from the transformer station to the residential power supply of the 600 Dien Bien Phu alley.

Connecting the low-voltage cable exported from the 400KVA transformer is one of the important tasks in providing electricity to the residential area in alley 600 Dien Bien Phu. This task requires accuracy and high sense of responsibility from electrical technicians.

To ensure efficiency and safety during the cable connection process, electrical technicians must fully comply with the procedures and technical standards. First, they will have to accurately determine the location of the transformer and related electrical equipment before proceeding to connect the cables. Then, they will use modern tools and techniques to accurately connect the cable ends and ensure the quality.

At the same time, electrical technicians will also conduct a full system check to ensure that the cable ends have been properly connected and that no incidents have occurred. If any errors are detected, they will immediately repair them to ensure the safety and effectiveness of the system.

During the cable connection process, the use of modern tools and techniques not only increases efficiency and accuracy, but also reduces incidents. This ensures that the residential area in alley 600 Dien Bien Phu will be provided with stable and safe electricity for a long time.

24. Installation of The VRAC 24kv – 6 compartment #Eaton[#Cooper] medium voltage cabinet ✓ Configuration:

The installation of VRAC 24kV – 6 compartment RMU Eaton/Cooper medium voltage switchgear is one of the important tasks in the medium voltage power grid system of this project. The VRAC 24kV – 6 compartment RMU Eaton/Cooper switchgear is designed to provide safe and stable power supply to residential, industrial and other areas.

The installation of VRAC 24kV – 6 compartment RMU Eaton/Cooper switchgear requires professionalism and high technical skills from Quanganhcons electrical technicians. Prior to the installation, electrical technicians will have to determine the exact location of the switchgear and related electrical equipment, while adhering to all procedures and technical standards.

Once the installation location has been determined, the electrical technicians will proceed to install the components of the medium voltage switchgear. These components include power blocks, controllers, sensors, and protection devices.

After completing the installation, electrical technicians will conduct a comprehensive system check to ensure that the VRAC 24kV – 6 compartment RMU Eaton/Cooper switchgear has been installed correctly and is operating effectively. If any errors are found, they will be immediately repaired to ensure the safety and efficiency of the system.

The installation of VRAC 24kV – 6 compartment RMU Eaton/Cooper switchgear will help provide safe and stable power supply to areas using medium voltage electricity, ensuring the electricity needs of residents and industrial production are met.

RMU cabinet specifications

• KKT: 3-function cabinet – 2 LBS 630A load break switches and 1 630A load break switch with LBSF fuse pipe

• KKV: 3-function cabinet – 2 LBS 630A load break switches and 1 630A VCB B – Specifications:
• Indoor installation, manual operation
• Expandable on both sides
• Voltage #24kV, Busbar 630A
• Short-circuit current rating: 20kA/3s
• Internal arc withstand capability: 4 sides AFLR 20kA/s

• LBS load break switch compartment: Cable inlet/outlet (marked K)

• SF6 insulation
• VPIS voltage presence indicator
• 3-position LBS load break switch
• FI fault indicator
• 220VAC 50W heating element compartment K

• LBS – Fuse load break switch compartment (marked T)

• SF6 insulation
• VPIS voltage presence indicator
• 630A load break switch
• 80A fuse chamber  Ground connection on both sides of the fuse chamber  Horizontal fuse chamber integrated in SF6 tank  24kV medium voltage fuse (Mersen/Hungary) up to 40A suitable for the load compartment T

• VCB compartment (marked V)

• SF6 insulation
• VPIS voltage presence indicator
• DS 630A isolation switch
• 200A VCB  Vacuum arc-quenching environment  SF6 insulation environment
• Relay 50/51; 50N/51N  External power supply 24VDC  CTs 600/1A 5P20  220VAC 50W heating element

Complete connection of the project, acceptance, switch on and hand over to Gia Dinh Power Company.

Connection and continuous operation of a 600KVA generator for 8 hours to provide power to residential areas on the 600 Dien Bien Phu alley. Dismantling a 400KVA transformer from a 400KVA substation, and installing it into a 400KVA steel pole substation. Pulling and installing a 3x240mm2 24KV underground cable, and installing a protective cover for the 400KVA transformer. Construction of 02 3x240mm2 24KV joint boxes.

Completion of 05 Tplug medium voltage underground cable ends 3M240mm2 3M50mm2 to the Eaton 6-compartment RMU +KKTKKV+ cabinet, installation of 03 25A medium voltage fuses in compartment T, and installation of 04 underground cable fault warning devices and secondary current transformers.

Relocation of the 400KVA transformer station, upgrading and renovating the low-medium voltage power system, and telecommunication cables to improve safety for the heavily populated road.

Are you looking for a reliable partner to ensure the professional, safe, and efficient execution of construction works for electrical systems? Let Quanganhcons help you.

With our experience and professional staff, Quanganhcons is committed to providing our customers with the best quality electrical construction services. We are proud to be a pioneer in the construction of electrical systems and substations in Vietnam with the highest level of professionalism, ensuring safety for those involved and the end-users.

Similar to the works in the “Relocation and renovation of the highway streetlight substation, ensuring safety for the electrical landscape, and urban improvement” project at 600 Dien Bien Phu, Ward 22, Binh Thanh District, Ho Chi Minh City. We can help you with the following tasks:

• Connection installation and running of a 600KVA continuous power generator for 8 hours to supply power to residential areas in the 600 Dien Bien Phu alley.
• Dismantling a 400KVA transformer from the 400KVA tower station and installing it in the 400KVA steel pole station.
• Pulling and connecting the 3x240mm2 24KV underground cable, installing protective covers for the 400KVA transformer.
• Construction of 2 3x240mm2 24KV cable junction boxes.
• Completion of 5 medium-voltage underground cable heads Tplug 3M240mm2 3M50mm2 to the 6-compartment Eaton RMU +KKTKKV+ cabinet, installing 3 25A medium-voltage fuses in compartment T, and 4 underground cable fault alarm systems and secondary electric meters.
• Completion of the relocation, upgrading, and renovation of the 400KVA transformer station, lowering the overhead and underground power and telecommunications cable systems, reducing clutter, and fire and explosion risks, ensuring high safety standards for the route with heavy traffic.

Choose Quanganhcons for your electrical construction needs and let us provide you with the highest level of professionalism and safety.

The construction process for powering a residential area on 600 Dien Bien Phu street is as follows:

1. Connection: The first step is to connect the power supply to the residential area. This involves connecting the power cables from the main power source to the area where the power is needed.
2. Running the 600KVA generator continuously for 8 hours: A 600KVA generator is installed and run continuously for 8 hours to ensure that it is functioning properly and capable of providing consistent power to the residential area.
3. Dismantling the 400KVA transformer from the 400KVA substation and installing it onto the 400KVA steel pole substation: The next step is to dismantle the 400KVA transformer from the 400KVA substation and install it onto the 400KVA steel pole substation.
4. Laying 3x240mm2 24KV underground cables and installing protective covers for the 400KVA transformer: The underground cables are laid and protective covers are installed to ensure the safety of the 400KVA transformer.
5. Constructing two 3x240mm2 24KV connection boxes: Two connection boxes are constructed for the 3x240mm2 24KV cables.
6. Completing the installation of 05 Tplug 3M240mm2 3M50mm2 underground cables to the 6-compartment Eaton RMU cabinet: The underground cables are connected to the 6-compartment Eaton RMU cabinet, and 03 25A medium voltage fuse sets and 04 underground cable fault warning systems are installed.
7. Completing the relocation of the 400KVA transformer station, upgrading, renovating, and burying the medium and low voltage electrical system and telecommunications cables to improve safety and modernize the infrastructure.
8. Finally, the power supply and construction work have given a new, modern and elegant appearance to the busy street with heavy traffic.

Quanganhcons – Leading Electrical Contractor in Vietnam

Quanganhcons is one of the top companies specializing in providing high-quality and reliable turnkey electrical services in Vietnam. With years of experience in the electrical construction industry, Quanganhcons has successfully completed numerous large-scale and important projects, such as providing electrical systems for industrial parks, factories, warehouses, residential and commercial buildings, power distribution substations, overhead and underground cable systems, as well as relocating and upgrading power lines and substations.

Quanganhcons always uses advanced materials, equipment, and technology, as well as a team of professional and experienced technicians, to ensure accuracy, reliability, and cost-effectiveness for its customers. Moreover, Quanganhcons is committed to providing the best after-sales services to ensure customer satisfaction.

With the motto “Trust – Quality – Dedication,” Quanganhcons will bring peace of mind and convenience to customers when using the company’s services. Contact us now for the best advice and support for your electrical system!

QUANG ANH CONSTRUCTION ELECTRICITY CO.,LTD

Website: https://thicongtrambienap.com

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Address: 41F/22 Dang Thuy Tram Street, Ward 13, Binh Thanh District, Ho Chi Minh City, Vietnam

Hotline: 0919758191

Email: sales@thicongtrambienap.com

Tax code: 0316365712