Multilaver Flexible Copper Bus Bar For Switchgear
Products Description
The Multilayer Flexible Copper Busbar for Switchgear is a high-efficiency conductive connection component specifically developed for medium and high-voltage switchgear, power distribution cabinets, and electrical control units. Adopting a composite process of multi-layer oxygen-free copper foil lamination, it breaks through the installation limitations of traditional rigid busbars and the current-carrying bottleneck of flexible conductors. Compared with single-structure conductive parts, its core advantages lie in combining flexible bending performance (capable of ±180° dynamic bending to adapt to the complex wiring space inside switchgear) with high current-carrying capacity from multi-layer lamination. This perfectly solves the problem of conductive connection stability during the switching operation of switchgear, while reducing energy consumption and temperature rise during equipment operation. As a critical component for power transmission in switchgear, the Copper Foil Bus Bar ensures reliable and efficient power distribution in various electrical systems.
Technical Parameters & Process Details
Conductor Material
The Copper Foil Connector adopts 99.99% high-purity oxygen-free copper (OFC) with a conductivity of ≥58MS/m. Its oxidation resistance complies with ASTM B152 standards, making it suitable for the long-term high-voltage operating environment of switchgear.
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Structural Design
The Copper Flexible BusBars for Lithium Battery supports customized lamination of 2-12 layers of copper foil, with each layer thickness optional from 0.1-0.5mm, total thickness ranging from 1-10mm, and width customizable from 10-200mm as needed. Layers are bonded with high-temperature resistant epoxy resin (temperature resistance grade optional: 155℃/180℃), and the insulation resistance is ≥10¹²Ω.
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Flexibility Performance
The Copper Foil Flexible Storage Energy Battery Busbar features a minimum bending radius of ≤3 times the total thickness and can withstand ≥10,000 repeated bends without fracture, meeting the dynamic usage requirements of frequent switching operations of switchgear.
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Current-Carrying Capacity
At 25℃, the 2-layer × 0.3mm × 50mm specification can achieve a current-carrying capacity of 300A, while the 6-layer specification of the same size increases the current-carrying capacity to 850A-far exceeding that of flexible cables with the same cross-section. Additionally, its voltage drop is ≤0.02mV/A·m.
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Surface Treatment
The Copper Foil Multi-Layer Welding Busbar offers optional tin (Sn), silver (Ag), or nickel (Ni) plating processes, with a plating thickness of 3-15μm. It passes a salt spray test of ≥48 hours, effectively resisting moisture and dust corrosion inside switchgear.
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Scenario-Specific Adaptation Advantages
Medium and High-Voltage Circuit Breakers
The flexible structure of the Laminated Flexible BusBar absorbs closing impact force to avoid loose rigid connections. Multi-layer copper foil disperses current density and reduces contact temperature rise, making it suitable for 10kV-35kV voltage levels.
Power Distribution Cabinets/Switchgear Cabinets
The Flexible Insulated Copper BusBar can flexibly bypass internal components and terminal blocks, reducing wiring inflection points, improving cabinet space utilization, and simplifying installation processes (installation efficiency increased by 40%).
Isolating Switches/Earthing Switches
Dynamic bending of the Silver Plated Copper BusBar does not affect its conductive performance, meeting the mechanical life requirements of frequent switchgear operations (mechanical life ≥10,000 times).
Core Customer Benefits
Cost Reduction & Efficiency Improvement
The integrated molding of the Insulated Flexible BusBar reduces the number of joints, lowers failure risks (failure rate reduced by 60%), shortens installation cycles, and cuts labor costs.
01
Stability & Reliability
The high-purity copper material and precision manufacturing process of the Copper Foil Bus Bar ensure consistent conductive performance. Its operating temperature rise is 15-20℃ lower than that of traditional busbars, extending the service life of switchgear (service life ≥15 years).
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Customization Flexibility
The Flexible Copper Shunts supports customization of size, number of layers, plating, and insulation solutions based on switchgear's current level, installation space, and environmental conditions (high temperature, humidity, salt spray).
03
Compliance & Certification
The Multilayer Flexible Copper Busbar for Switchgear has passed UL 94V-0 flame retardant certification, RoHS environmental certification, and CE certification. It complies with switchgear industry standards such as IEC 60439 and GB/T 14048, ensuring project compliance.
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