Tailored for high electrical efficiency, optimal vibration damping, and superior thermal tolerance in demanding industrial environments.
As the Iberian Peninsula accelerates its National Integrated Energy and Climate Plan (PNIEC 2023-2030), copper flexible straps are paramount to ensuring grid resilience, EV expansion, and industrial efficiency.
Spain is Europe's solar and wind powerhouse. High-flexibility braided copper jumpers are critical in PV tracker bonding, solar central inverters, and wind turbine nacelle grounding across Andalusia, Aragon, and Castilla-La Mancha.
With Spain ranking as Europe’s second-largest automotive producer, plants in Martorell (Catalonia), Vigo (Galicia), and the Gigafactory in Sagunto demand custom insulated copper braids and laminated busbars for battery packs.
ADIF's extensive AVE network and Red Eléctrica de España (REE) substations require robust copper grounding shunts compliant with UNE-EN standards to withstand severe mechanical vibration and salt-fog corrosion.
Spain presents unique operational challenges for electrical connectivity: extreme thermal fluctuations between Iberian summers and mountain winters, high saline coastal corrosion across Mediterranean and Atlantic seaports (Barcelona, Valencia, Bilbao), and continuous high-amplitude mechanical vibration in high-speed rail systems. Zhejiang Bridgold Copper Tech Co., Ltd. manufactures world-class braided copper connectors, flexible jumpers, and copper shunts engineered specifically to meet these operational environments.
Our flexible copper straps are crafted using ultra-pure oxygen-free copper (Cu-OF / CW008A) and electrolytic tough pitch copper (Cu-ETP / CW004A) wires with single-strand diameters ranging from 0.05 mm to 0.20 mm. This tight braiding architecture ensures maximum flex life, ultra-low electrical contact resistance, and exceptional current-carrying ampacity while preventing micro-fractures caused by equipment thermal expansion and harmonic vibration.
| Feature / Parameter | Technical Specification | Standards Compliance / Benchmark |
|---|---|---|
| Raw Material Grade | Cu-ETP (CW004A) & Cu-OF (CW008A), Purity ≥ 99.95% | EN 13602, EN 1977, ASTM B33 |
| Strand Diameter Range | 0.05 mm, 0.07 mm, 0.10 mm, 0.15 mm, 0.20 mm | DIN 46444 / IEC 60228 Class 5 & 6 |
| Terminal Technology | Solderless Cold Pressing, Molecular Diffusion Welding | UNE-EN 61373 (Shock & Vibration Resistance) |
| Surface Protection | Bare Copper, Electro-Tin Plated, Silver Plated, Nickel Plated | ISO 2093, ASTM B545, RoHS & REACH Compliant |
| Insulation Options | Extruded PVC, Halogen-Free Flame Retardant (HFFR), Heat-Shrink Polyolefin | UL94-V0, IEC 60332-1, UNE 211002 |
| Operating Temperature | -50°C to +150°C (Standard) / Up to +250°C (Silicone/Specialty) | IEC 60695-2-11 Glow Wire Test Approved |
A national-level high-tech enterprise spearheading flexible conductive technologies worldwide.
Zhejiang Bridgold Copper Tech Co., Ltd. is a national-level high-tech enterprise specializing in the research, development, design, and production of flexible conductive connection products. The company is located in the Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province, occupying 46,000 m² of land with a total construction area of nearly 100,000 m².
Bridgold is dedicated to the intelligent manufacturing of a comprehensive range of flexible conductive products, including:
Our products are widely used in electric vehicles, energy storage systems (BESS), charging infrastructure, wind power generation, industrial automation and control, rail transit systems, and medical equipment. With a strong focus on quality, precision engineering, and sustained innovation, Bridgold has built a solid reputation both domestically and internationally. Our products are sold throughout China and exported to Spain, Germany, France, Italy, North America, Southeast Asia, the Middle East, Africa, and beyond.
Trusted by Fortune Global 500 giants, European industrial conglomerates, and renewable infrastructure EPCs.
As a trusted supplier to many Fortune Global 500 companies and industry leaders, Bridgold has established long-term, stable partnerships with renowned enterprises such as: GE, ABB, Siemens, Bombardier, CRRC, Vestas, Foxconn, CSSC, and Sungrow.
In 2010, the company entered the qualified supplier list for Siemens Healthcare and GE Wind Energy, marking a significant milestone in its global expansion and compliance with European quality directives.
To date, our copper braided wire series products rank No. 1 in global market share, a testament to our manufacturing excellence, quality stability, and customer trust across the European continent.
In the new energy vehicle sector, our products have been successfully applied in major automotive brands such as Mercedes-Benz, BAIC, SAIC, JAC, NIO, FAW, and Great Wall Motors, ensuring the safety, vibration resistance, and electrical integrity of automotive high-voltage connection systems.
Pioneering high thermal conductivity, molecular diffusion bonding, and EV high-voltage safety.
As of 2025, Bridgold has accumulated 51 national patents, including 16 invention patents. Demonstrating our core technical leadership, the company participated in the formulation of the national standard GB/T 37133 "High-voltage connection system for electric vehicles". Our core technologies cover cutting-edge fields such as superconducting connection materials, high thermal conductivity composites, high-frequency shielding geometry, and intelligent manufacturing processes.
Bridgold has established a professional copper connection technology R&D center with strong research capabilities, recognized by the Zhejiang Provincial Government as a "Zhejiang Provincial Enterprise Technology R&D Center" and "Zhejiang Provincial Enterprise Technology Center". These certifications ensure comprehensive technical quality control throughout the entire process—from raw material spectral quality analysis and manufacturing process development to finite-element thermal simulation and finished product quality inspection.
Digital twin simulation, automated continuous braiding, and zero-defect quality control for Spain's mission-critical industries.
In response to global industrial upgrading and green transformation, Bridgold continues to advance intelligent manufacturing and digital transformation. We have invested heavily in the development and introduction of high-end manufacturing and automated testing equipment, building a personalized, digitalized, efficient, and standardized intelligent manufacturing system.
Our workshop features high-speed computerized braiding looms, multi-axis automated crimping cells, high-vacuum diffusion welding units, and automated optical inspection (AOI) systems. The company actively promotes the standardization of products and technologies by participating in the formulation of industry standards. Through industry-university-research collaboration with top universities and research institutions, we jointly tackle common technical challenges in the industry, building distinctive technological advantages that provide Spanish and European clients with unmatched delivery speed, price competitiveness, and uncompromising product reliability.
Engineered for high current transmission, dynamic grounding, switchboards, battery packs, and industrial transformers.
