Aluminum Alloy Enclosed High Voltage Bus Duct

The Aluminum Alloy Enclosed High Voltage Bus Duct manufactured by Qingdao Fenghua Electric Appliance Manufacturing Co., Ltd. is a high-performance power transmission solution designed for medium to high-voltage systems (3.6kV–35kV, 50/60Hz). Built with a durable aluminum alloy enclosure and advanced enclosed structure, it ensures safe, stable, and efficient electrical distribution in demanding industrial environments.

Compared with traditional cable systems, this bus duct offers superior conductivity, reduced energy loss, enhanced safety protection, and simplified installation. It is widely used in substations, power plants, and large-scale industrial facilities.

About Fenghua Electric – Trusted China Manufacturer

Founded in 2005 and headquartered in Qingdao West Coast New Area, Qingdao Fenghua Electric Appliance Manufacturing Co., Ltd. is a professional China manufacturer and supplier of electrical equipment, specializing in bus ducts, cable trays, and power distribution systems.

With strong technical capabilities, advanced production equipment, and decades of engineering experience, Fenghua Electric has developed a complete product system through its subsidiaries, including Qingdao JinFenghua Electric Co., Ltd., forming a diversified industrial structure.

Core values: Innovation, Efficiency, Integrity, Win-Win Cooperation

Commitment: High-quality manufacturing and reliable global service

Product Application Scope

The Aluminum Alloy Enclosed High Voltage Bus Duct is designed for high-demand power transmission scenarios, including:

Power substations (internal and external power connection systems)

Power generation plants (stable transmission from generator units)

Industrial factories (steel, chemical, machinery manufacturing plants)

Large commercial complexes

High-rise buildings (elevators, HVAC systems, fire protection systems)

It is an ideal replacement for traditional exposed busbar systems, offering a safer and more compact solution for modern power infrastructure.

Key Advantages & Features

1. High Safety & Reliable Operation

▪Fully enclosed aluminum alloy housing prevents direct contact with live conductors

▪Protection against dust, moisture, and external contamination

▪High protection rating up to IP54 / IP66 (outdoor version)

Integrated grounding structure ensures equal potential across the housing, reducing electric shock risk

Triple Insulation System

▪Insulated conductor coating

▪Air insulation between phases

DMC insulating support blocks between conductors and housing

This multi-layer insulation design ensures excellent performance even in humid or harsh environments.

Strong Short-Circuit Resistance

▪Aluminum enclosure reduces eddy current losses and heat buildup

▪Effectively lowers electromagnetic stress during short-circuit conditions

▪Enhances mechanical strength and system stability under high fault current impact

2. High Efficiency & Energy Saving Performance

▪High conductivity copper/aluminum conductors with low resistance

▪Reduced voltage drop and minimized power loss

▪Low skin effect improves current distribution efficiency

Optimized Connection Design

▪Dual copper connection plates increase contact surface

▪Bolted insulation structure reduces joint temperature rise

▪Improves long-term operational stability and efficiency

3. Excellent Thermal Management

▪Aluminum-magnesium alloy housing with extruded heat dissipation structure

▪Integrated heat sinks and ventilation design increase cooling efficiency

▪Optional active cooling system with fan-assisted airflow

▪Internal/external surface coating improves heat radiation balance

This ensures stable operation under high-load conditions and extends service life.

4. Easy Installation & Flexible Configuration

▪Modular structure supports long-distance installation with minimal supports

▪Standardized section design ensures easy alignment and assembly

▪Plug-in and slot connection system reduces installation time

▪Supports vertical and horizontal installation in various engineering environments

The system is designed for fast deployment and reduced labor cost, making it ideal for large infrastructure projects.

5. Certified Quality & International Standards Compliance

▪Designed in accordance with relevant IEC standards

▪Insulation resistance ≥ 100MΩ (2500V insulation testing)

▪Factory-tested with 1-minute power frequency withstand voltage test

▪Strong mechanical performance meets industry standard requirements

Fenghua Electric provides test reports and certifications to ensure compliance, reliability, and procurement confidence for global customers.

Quality Assured: Certified

Strict Adherence to Standards: The product design complies with relevant standards, and its bending strength meets the requirements of standard ZBK36002-89. The insulation resistance of each enclosed busbar unit exceeds or equals 100 MΩ (measured using a 2500V megohmmeter). Prior to shipment, every unit undergoes a 1-minute power-frequency dry withstand voltage test; both the power-frequency withstand voltage and lightning impulse withstand voltage values fully comply with national standards.

Backed by Authoritative Certification: The company has obtained comprehensive test reports and mandatory certification certificates for various busbar specifications. This ensures we can fully satisfy our clients' diverse product requirements and technical needs, providing you with complete peace of mind during use.

Custom Engineering & OEM Support

As a professional Aluminum Alloy Enclosed High Voltage Bus Duct manufacturer in China, Fenghua Electric provides:

Customized design based on project requirements

Engineering consultation and system selection support

OEM/ODM manufacturing services

Full technical documentation and installation guidance

We support global contractors, EPC companies, distributors, and industrial buyers.

Service Commitment

Pre-sales support: technical consultation and solution design

In-sales support: production tracking and quality inspection

After-sales service: installation guidance and maintenance support

Warranty service: fast response for repair or replacement issues

We ensure stable operation of your power distribution system throughout its lifecycle.

Why Choose Fenghua Electric?

▪Over 20 years of manufacturing experience

▪Advanced production facilities and strong engineering team

▪Full range of bus duct and electrical distribution solutions

▪Strict quality control system

▪Export experience with global customers

▪Competitive factory-direct pricing

Company Profile

Qingdao Fenghua Electric Appliance Manufacturing Co., Ltd. specializes in:

▪Bus duct systems (high voltage, low voltage, fire-resistant types)

▪Cable trays and electrical enclosures

▪Power distribution cabinets and metal products

With continuous innovation and strong R&D investment, Fenghua Electric is committed to developing energy-efficient, safe, and high-performance electrical transmission systems for global infrastructure projects.

Contact Us

If you are interested in the Aluminum Alloy Enclosed High Voltage Bus Duct, please contact us for technical consultation, quotations, or customized solutions. We are ready to support your project with professional engineering expertise and reliable manufacturing capability.