Medium Voltage Air Insulated Busway

Medium Voltage Air Insulated Busway developed by Qingdao Fenghua Electric is designed for medium-voltage power transmission and distribution systems. Using air as the main insulation medium, the system effectively avoids problems such as insulation aging and moisture damage found in traditional busbar systems.

With advantages such as high conductivity, strong short-circuit resistance, efficient heat dissipation, and energy-saving performance, the Medium Voltage Air Insulated Busway is widely used in factories, commercial buildings, and infrastructure projects.

As a reliable Medium Voltage Air Insulated Busway manufacturer and factory in China, Fenghua Electric provides high-quality products, competitive prices, and professional service, helping customers build safe and efficient power distribution systems.

What is Medium Voltage Air Insulated Busway?

Medium Voltage Air Insulated Busway is a high-efficiency power transmission system designed for medium-voltage electrical distribution networks. It uses air as the main insulation medium between conductors and phases, combined with high-quality copper or aluminum conductors and a durable metal enclosure to safely transmit electrical energy.

Compared with traditional power cables, the Medium Voltage Air Insulated Busway offers higher current carrying capacity, better heat dissipation, easier installation, and improved operational safety. The separated phase design effectively reduces electrical faults and improves insulation reliability, making it suitable for demanding industrial and commercial environments.

Manufactured by experienced China manufacturers and suppliers, these systems are widely used as the main power backbone in modern electrical distribution systems.

What Does Medium Voltage Air Insulated Busway Do?

The Medium Voltage Air Insulated Busway functions as a core power transmission channel in medium-voltage distribution systems. It efficiently transfers electricity from transformers or switchgear to different electrical loads within a facility.

Its primary roles include:

Transmitting medium-voltage electrical power safely and efficiently

Connecting transformers, switchgear, and distribution panels

Providing stable power supply for large electrical systems

Reducing power loss compared with traditional cable systems

Because of its modular structure, the Medium Voltage Air Insulated Busway also allows flexible routing and expansion in complex electrical installations.

Key Features

1. Air Insulation Technology

Using air as the insulation medium, the system avoids insulation aging problems common in resin or densely insulated busbars, improving safety and durability.

2. High Conductivity

High-purity electrolytic copper conductors ensure excellent conductivity, reducing energy loss and improving overall power transmission efficiency.

3. Excellent Heat Dissipation

The open air-insulated structure provides superior heat dissipation, allowing the busway to operate safely under heavy loads.

4. Strong Short-Circuit Resistance

The robust mechanical structure and separated phase design enhance the system’s ability to withstand short-circuit currents and mechanical stress.

5. Modular Design

The standardized modular structure makes installation, maintenance, and future expansion fast and convenient.

6. Long Service Life

Manufactured with high-strength metal enclosures and anti-corrosion surface treatments, the Medium Voltage Air Insulated Busway offers long-term reliability and stable operation.

Core advantages

1. Safe and Reliable with Superior Insulation Performance

Utilizing a separate phase-to-phase isolation design, coupled with high-strength epoxy resin insulation components, the phase-to-phase safety clearance and creepage distance far exceed national standards and IEC 62271-200 international standards, effectively eliminating short-circuit hazards. Using air as the insulating medium eliminates insulation aging concerns. Compared to traditional PVC heat-shrink tubing insulation, it avoids insulation layer cracking and discharge risks, exhibiting outstanding resistance to dynamic and thermal stability, ensuring long-term stable operation of equipment, and is suitable for various power supply and distribution environments, including high-dust and complex conditions.

2. High Conductivity and Efficient Energy Saving

The conductor uses high-purity electrolytic copper with a copper content of over 99.99%, meeting the industry's core requirements for conductor material purity. The surface undergoes double treatment with tin plating and PVC heat-shrink tubing, resulting in excellent conductivity, close to the standard peak conductivity, and low power loss, significantly reducing electricity costs. The optimized structural design improves heat dissipation efficiency, preventing overheating from affecting equipment performance, achieving both energy saving and high efficiency, and adapting to high-current transmission requirements.

3. Rational Structure, Convenient and Efficient Installation

The outer shell adopts a one-time roll-formed corrugated structure, made of high-quality cold-rolled steel or aluminum alloy, offering high mechanical strength, an attractive appearance, and an IP40 or higher protection rating. It provides excellent dustproof and grounding performance, adaptable to complex indoor installation environments. The standardized structural design ensures strong interchangeability, allowing for various connection methods such as straight sections, elbows, and T-shaped branches. The butt-connection installation is convenient and flexible, requiring no complex tools, significantly shortening the construction cycle and reducing labor costs. Non-standard customization is also supported, allowing for design adjustments based on specific customer working conditions.

4. Rigorous Quality, Long Service Life

The products are certified by ISO9001 quality management system, ISO14001 environmental management system, and 3C mandatory certification. Each product undergoes multiple rigorous tests, including withstand voltage and short-circuit tests, adhering to the company's internal quality control standards that exceed national standards. Strict material selection and exquisite craftsmanship, combined with the company's years of experience in electrical manufacturing, effectively extend product lifespan, reduce subsequent maintenance costs, and lower overall investment for customers.

Product Parameters

Adapted scenarios

Medium Voltage Air Insulated Busway, with its superior performance and flexible adaptability, is widely used in various medium-voltage power supply and distribution scenarios, especially suitable for modern workshops, industrial plants, high-rise buildings, substations, commercial complexes, office buildings, and other places. It undertakes the connection task between low-voltage distribution panels and large and medium-sized loads, accurately meets the medium-voltage power transmission needs of multiple fields such as industrial production and commercial operation, and can adapt to harsh environments such as high dust and complex working conditions, stably outputting power, helping projects to proceed efficiently, and adapting to non-standard customized needs of power engineering.

Enterprise protection

Qingdao Fenghua Electric Appliance Manufacturing Co., Ltd. has nearly 20 years of experience in the electrical equipment industry. As a professional China manufacturer and supplier, the company focuses on the research, development, and production of busway systems and cable trays. With advanced production equipment, a skilled technical team, and strict quality control, Fenghua Electric ensures stable product performance and reliable quality. The company owns 19 patents and 28 certifications, and has full import and export qualifications, providing customers worldwide with dependable electrical solutions.

Fenghua Electric also offers one-stop technical services, including product selection, system design, installation guidance, and after-sales support. This helps customers improve installation efficiency, reduce maintenance costs, and ensure the long-term safe operation of power distribution systems.

FAQ

1. What voltage ranges is it suitable for?

It is typically designed for electrical systems ranging from 3.6kV to 35kV, depending on the project requirements and system configuration. It is widely used as the main transmission backbone between transformers, switchgear, and distribution systems in medium-voltage power networks.

2. What are the advantages compared with traditional cables?

Compared with traditional power cables, Medium Voltage Air Insulated Busway offers several advantages, including higher current carrying capacity, better heat dissipation, lower power loss, and easier maintenance. Its modular design also simplifies installation and future expansion in industrial and commercial power systems.

3.Is it safe to operate in the long term?

Yes. A properly designed Medium Voltage Air Insulated Busway features separated phase conductors, reliable air insulation spacing, and a high-strength metal enclosure, which significantly reduces the risk of short circuits and overheating. With proper installation and maintenance, the system can operate safely for decades in demanding environments.

4. What materials are used in Medium Voltage Air Insulated Busway conductors?

Most Medium Voltage Air Insulated Busway systems use high-purity electrolytic copper or high-conductivity aluminum conductors. Copper is preferred in many industrial applications because of its superior conductivity, mechanical strength, and long-term reliability.

5. Where is it typically installed?

Widely used in facilities that require stable and high-capacity power distribution, such as:

Industrial factories

Power plants and substations

Large commercial buildings

Data centers

Airports and transportation hubs

Large infrastructure projects

Its reliability and flexibility make it an important component in modern power distribution systems.

6. How do you choose the right Medium Voltage Air Insulated Busway for a project?

Selecting the correct Medium Voltage Air Insulated Busway requires evaluating several factors, including rated voltage, current capacity, installation environment, protection level, conductor material, and system layout. Working with an experienced manufacturer or supplier ensures the busway system is properly designed to meet safety standards and project requirements.