Copper-Aluminum Transition Busbar for Busway
Copper-Aluminum Transition busbar for Busway
The description for Copper-Aluminum Transition Busbar
The bar is made of high-quality T2 oxygen-free copper and 1060 pure aluminum as base materials, and adopts advanced atomic diffusion welding or explosion welding technology to achieve metallurgical bonding, with no solder, no false welding and no delamination at the interface. The copper end is perfectly matched with the copper busbar of the busway and the copper terminal of the power distribution equipment, and the aluminum end is connected with the aluminum busbar of the busway and the aluminum power cable.
It is mainly used for the transition connection of power input and output of busway trunking, branch busway, busway junction box and distribution cabinet, and is suitable for low-voltage, medium-voltage and high-current busway systems.
The technical specific for the busbar
| Item | Parameter Value | Test Standard |
|---|---|---|
| Material | Copper end: T2 oxygen-free copper (conductivity ≥ 98% IACS); Aluminum end: 1060 pure aluminum (conductivity ≥ 61% IACS) | GB/T 5231, GB/T 3190 |
| Bonding Process | Atomic diffusion welding (explosion welding optional), interface shear strength ≥ 75MPa, no delamination or cracks | DL/T 247, GB/T 13148 |
| Contact Resistance | Transition interface resistance ≤ 0.04mΩ, overall resistance 35% better than industry average | GB/T 6145 |
| Rated Current | 500A ~ 5000A (customized by cross-sectional size: width 30–150mm, thickness 4–15mm) | GB/T 11022, GB/T 29520 |
| Operating Temperature | -40℃ ~ 130℃, short-term peak 160℃ | IEC 60068-2-14 |
| Surface Treatment | Copper end: tin-plated / nickel-plated (8–12μm, anti-oxidation and anti-corrosion); Aluminum end: chemical passivation / anodization (salt spray resistance ≥ 96h) | GB/T 13913 |
| Insulation Option | Heat shrinkable sleeve / epoxy coating / silicone insulation layer, withstanding voltage ≥ 3000V AC / 1min | GB/T 1408.1 |
| Mechanical Performance | No cracks after 90° bending; Tensile strength ≥ 180MPa, suitable for busway installation and fixing | IEC 60068-2-6, GB/T 228.1 |
Application Scenarios
- Industrial Power Distribution: Busway systems in factories, workshops, industrial parks, including trunk busway, branch busway, and transition connection between busway and distribution cabinets, transformers.
- Power Industry: Busway transition connection in power plants, substations, power distribution rooms, and connection between busway and generators, transformers, switchgear.
Customization Services
- Size Customization: Arbitrary cross-sectional width and thickness, length, special-shaped bending, multi-section transition, to adapt to different busway installation spaces and connection angles.
- Surface Treatment: Silver plating, gold plating (for high-frequency, high-corrosion and high-precision power distribution scenarios), and thickened tin plating for strong anti-oxidation requirements.
- Insulation Treatment: Partial or overall insulation treatment, customized insulation thickness and material, to meet the insulation requirements of different voltage levels.
- Bulk Marking: Laser marking of product model, batch number, rated current, production date, etc., to facilitate project management and traceability.
Package&Shipment
