Busbar Coating With Epoxy Coating Powder
Products Description
Busbar Coating with Epoxy Coating Powder is an electrical connection structure that forms an insulating protective layer on the surface of a copper busbar through electrostatic spraying. In UPS single-power server systems, busbars typically need to withstand high current densities and continuous temperature rise during operation. Traditional bare copper busbars are susceptible to oxidation, moisture, or environmental contamination during prolonged use, leading to decreased conductivity or insufficient insulation distance. Therefore, forming a uniform and stable insulating layer through powder coating is an important technical solution for improving the reliability of power systems.
Material Performance and Advantages
Improved Current Carrying Capacity
Compared to traditional bare copper busbars, this Insulation Coating Busbar exhibits a 15% increase in current-carrying capacity under conditions of 80℃ temperature rise, effectively solving the resistance-induced heating bottleneck during high-load operation.
Ultra-Low Contact Resistance
After coating with high-purity T2/Y2 copper powder for Electroplating and Powder Coating Busbar, the contact resistance can be controlled to ≤0.1mΩ, ensuring efficient current transmission and high signal fidelity.
Environmentally Friendly and Solvent-Free
The core breakthrough lies in solvent-free evaporation (VOC <50mg/m³), completely eliminating the problem of organic matter volatilization caused by high-temperature melting in traditional injection molding, aligning with green manufacturing principles for Epoxy Powder Coat Busbar.
Product Details
Uniform Coating Structure
A uniform and dense insulating layer is formed on the Powder Coated Busbar surface using a fluidized bed electrostatic spraying process. The stable coating thickness effectively improves insulation performance and reduces localized electric field concentration.
High Adhesion Surface
The Epoxy Powder Coat Busbar undergoes chemical etching and sandblasting before spraying, achieving a surface roughness of Ra 3.2–6.3 μm. This pretreatment significantly enhances coating adhesion, ensuring no peeling or blistering occurs during long-term operation.
Precision Edge Finish
The Electroplating and Powder Coating Busbar edges are precision machined, with a minimum corner radius controlled at R0.3 mm. This proper edge transition prevents coating buildup or dripping during spraying, ensuring coating integrity.
Quality Control and Certification
Coating Adhesion
Tested according to ASTM D3359 cross-cut adhesion test, adhesion must reach >5 N/cm to ensure the Insulation Coating Busbar coating does not peel off in a vibrating environment.
Thickness and Uniformity
Powder coating thickness for Epoxy Powder Coat Busbar is measured using an electronic thickness gauge to ensure the thickness is within ±15μm, avoiding localized heating due to uneven thickness.
Environmental Compliance
VOC content is strictly controlled at <50 mg/m³, complying with EU RoHS and REACH environmental directives for Electroplating and Powder Coating Busbar.
contact us
If your UPS power system or server power equipment requires a highly reliable Busbar Coating with Epoxy Coating Powder solution, please contact our engineering team. We will provide professional technical support and stable manufacturing services for your project.
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