Qingdao Fenghua Electric supplies 800A Air Insulated Busway, a medium-current standard trunking solution widely adopted for low voltage power distribution. Rated 800A, this air-type busway adopts air as the main insulating medium, featuring good natural heat dissipation, flexible tap-off installation and balanced cost performance. It is widely used for main power trunking in factories, commercial buildings, distribution rooms and substation low-voltage interconnection. We support custom drawing design, prefabricated elbow/tee sections, factory witness test and bulk tender supply, delivering reliable 800A power transmission trunking for global EPC projects.
Qingdao Fenghua Electric Manufacturing Co., Ltd. produces 800A Air Insulated Busway, one of the most popular medium-current bus duct in low-voltage power distribution systems. Unlike high-current heavy-duty busway, this 800A grade strikes a good balance between carrying capacity, structural size and project budget. It uses high-purity copper or aluminum conductors, fixed by high-strength flame-retardant insulating supports to maintain stable air insulation gap. Natural air convection brings excellent heat dissipation performance. Tap-off boxes can be mounted at reserved positions for branch power extraction. It is suitable for new construction, renovation and capacity expansion projects, serving as the preferred medium-current trunking equipment for most industrial and commercial power distribution projects.
Product Parameter (Specification)
Parameter Item
Technical Specification
Product Name
800A Air Insulated Busway
Rated Current
800A
Rated Voltage
400V / 690V
Working Frequency
50Hz / 60Hz
Insulation Type
Air Insulation with flame retardant insulating spacers
Protection Grade
IP54 (IP65 optional for dusty or humid environment)
Phase Configuration
3P3W, 3P4W, 3P5W
Conductor Material
High-purity Copper / Aluminum Alloy (Optional, complying with GB/T 5585.1-2018)
Installation Mode
Horizontal / Vertical mounting
Applicable Environment
Factory workshop, commercial building shaft, power distribution room, box substation
Execution Standard
GB/T 7251.6, IEC 61439-6
Product Features and Application Scope
800A Air Insulated Busway is a mature medium-current bus duct, designed for conventional trunk power distribution. It focuses on stable 800A continuous current carrying, convenient branching and easy inspection, which is the most cost-effective selection for medium load power supply.
Core Advantages
1. Stable 800A Continuous Current Carrying Precision sized conductors maintain temperature rise within standard limits under long-term 800A rated load, ensuring safe continuous power delivery.
2. Superior Natural Air Heat Dissipation Air insulation structure avoids heat accumulation inside the housing, with simpler cooling performance than compact sandwich busway and easier routine thermal inspection.
3. Flexible Tap-off & Modular Assembly Tap-off units can be installed at preset positions along the busway. Elbows, tees, flanges and expansion joints are available for complex routing layout.
4. Balanced Project Cost & Compact Dimension Optimized structure size reduces occupied shaft space. Compared with cable systems for equivalent 800A load, it saves installation space and labor cost.
5. Reliable Mechanical & Insulation Performance High-strength insulating supports lock phase spacing firmly. It can withstand specified short-time withstand current and peak current under short-circuit fault.
6. Flexible Customization for Different Projects Qingdao Fenghua Electric can customize conductor material, housing surface treatment, tap-off spacing and terminal connection interface according to project single line diagram.
Application Scenarios Medium-sized factory main power trunk, shopping mall and office building vertical power supply, distribution room transformer to switchgear connection, box-type substation low voltage interconnection, building power renovation and capacity expansion, auxiliary power distribution for small data center.
Production Details and Craftsmanship
Qingdao Fenghua Electric implements strict production process for 800A Air Insulated Busway. Conductors are precision cut, surface tin-plated or silver-plated to reduce contact resistance. Flame-retardant, high-temperature resistant insulating supports are adopted to fix phase air clearance. The aluminum alloy or steel housing is assembled tightly with anti-corrosion surface treatment. Every 800A bus section will pass insulation resistance test, power frequency withstand voltage test and temperature rise test before delivery. We accept third-party witness inspection, non-standard prefabricated components and bulk supply for EPC contractors.
Why Choose Qingdao Fenghua Electric
1. Mature Manufacturing Experience for 800A Standard Busway We have rich production experience for 800A medium-current air insulated busway, familiar with common project acceptance and testing requirements.
2. Strict Electrical Performance Verification Each batch undergoes temperature rise and short-circuit withstand test to guarantee stable 800A long-time operation.
3. Complete Prefabricated Accessories Supply Supply full set of accessories including elbows, tees, expansion joints, end caps and tap-off boxes to match 800A busway system.
4. Full-cycle Engineering Technical Service Provide load verification, routing suggestion, installation guidance and acceptance support for EPC and project owners.
5. Stable Delivery & Complete Documentation On-time delivery with full test reports, certificates and technical drawings for tender and project acceptance.
Conclusion
Qingdao Fenghua Electric Manufacturing Co., Ltd. provides reliable 800A Air Insulated Busway. As a classic medium-current trunking product, it combines stable 800A current capacity, good heat dissipation and flexible branch design, widely suitable for various industrial and commercial low voltage power distribution projects. We welcome bulk procurement, drawing customization and tender cooperation, providing economical and safe trunk power solutions for global power distribution projects.
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