Explore our engineered components customized for electrical connections, energy storage systems, and heavy-duty industrial machinery.
In modern electrical engineering, structural dynamics and high-frequency power distribution demand conductors that combine high electrical conductivity with mechanical compliance. The 1.5mm² copper braided strap represents a precision-balanced cross-sectional area specifically engineered to counter the effects of localized thermal expansion and vibrational stress.
Unlike solid core wires, which are highly susceptible to fatigue cracking under cyclic mechanical loads, braided copper wires are constructed from hundreds of individual micro-filaments (typically ranging from 0.05 mm to 0.20 mm in diameter). By weaving these strands in a multi-spindle configuration (such as 8, 12, 24, or 36 spindles), we achieve a highly flexible conductor that exhibits exceptional current-carrying capacity (ampacity) and minimizes the skin effect at higher operational frequencies.
Furthermore, the surface area to volume ratio of a 1.5mm² braided strap is substantially larger than that of a solid conductor of equivalent cross-section. This unique physical architecture facilitates superior thermal dissipation, making it the preferred choice for compact enclosures in power electronics, automotive grounding, and smart grid relays.
Heavy machinery and electric vehicle chassis subject wiring setups to constant vibration. Custom 1.5mm² braids absorb this kinetic energy, preventing mechanical failure at terminals.
High-density communication equipment requires shielding from electromagnetic interference. Tinned copper braided structures offer up to 98% coverage indices, keeping signals pristine.
By coating pure T1 copper strands with a thin layer of protective tin, we prevent oxidation in humid marine or chemical industrial environments, preserving overall electrical conductivity.
Established in 2019 and situated in Liushi, Wenzhou—the widely recognized "Capital of Electrical Appliances" in China—Zhejiang Xingma Copper Industry Co., Ltd. operates at the intersection of traditional metallurgy and advanced manufacturing technology. Over our 10,000+ square meter facility, we have built a fully integrated supply chain that ensures price stability and fast production turnarounds.
Our facility features more than 300 automated manufacturing units, including Dingtian wire drawing systems, Fuchuan high-speed beam machines, multi-spindle braiding machines, digital continuous annealing furnaces, and automated flattening equipment. This comprehensive toolset allows us to monitor wire quality dynamically, from raw T1 copper rod input down to final customized stamping packaging.
Operating in Liushi gives us a strategic location disadvantage-free distribution: we sit directly adjacent to key domestic copper material markets and raw material processing hubs, while our logistics net guarantees next-day delivery to major international ports like Shanghai and Ningbo.
We manufacture copper braided wires in strict compliance with ISO9001 and international electrical standards. Our typical specifications for the 1.5mm² configuration are listed below:
| Property Parameter | Bare Copper Braid Specs | Tinned Copper Braid Specs | Test Standard / Method |
|---|---|---|---|
| Nominal Cross Section | 1.5 mm² | 1.5 mm² | DIN 46444 / GB/T 25097 |
| Material Purity | ≥99.95% T1 Red Copper | ≥99.90% T2 Copper + Tin Coat | ASTM B189 / EN 13602 |
| Single Filament Diameter | 0.12 mm - 0.15 mm | 0.08 mm - 0.12 mm | Micrometer / Laser Gauge |
| Electrical Resistivity (20°C) | ≤ 0.01724 Ω·mm²/m | ≤ 0.01777 Ω·mm²/m | IEC 60468 Resistance Bridge |
| Tin Coating Thickness | N/A | ≥ 1.5 μm (Customizable) | X-Ray Fluorescence (XRF) |
| Tensile Strength | ≥ 200 MPa | ≥ 220 MPa | Tensile Testing Machine |
Applied extensively in chassis grounding paths, EV battery management systems (BMS), and powertrain connections. The high flexibility of the 1.5mm² wire counteracts chassis vibrations and thermal cycling.
Integrates into industrial relays, air circuit breakers (ACBs), and power switches. Used alongside custom silver contacts to deliver quick, low-resistance mechanical linkages.
Serves as critical grounding jumpers in solar PV inverter enclosures, wind turbine control racks, and high-voltage power cabinets to direct fault currents safely away from sensitive components.
Get authoritative answers to the most common engineering and procurement questions regarding 1.5mm² copper braids and straps.
The current-carrying capacity (ampacity) of a 1.5mm² copper braid depends heavily on heat dissipation conditions and the installation environment. Under free-air cooling conditions at 30°C ambient, a typical 1.5mm² braided copper strap can handle approximately 20A to 32A of continuous current. For enclosed, non-ventilated spaces, we recommend derating this value by 20% to 30% to prevent excessive thermal wear on nearby components.
While bare copper offers slightly higher raw electrical conductivity, tinned copper braids offer superior protection against environmental corrosion. The tin plating prevents the copper from reacting with oxygen and moisture to form copper oxide (which introduces high contact resistance). Tinned copper also offers better solderability and resists chemical deterioration in marine, industrial, or high-humidity applications.
Our batch consistency is supported by our ISO9001:2015 certified quality system. We employ automated online monitoring on our drawing and braiding machines to track strand dimensions and wire tension. Post-production testing includes micro-hardness checks, resistance bridge measurements, and plating thickness validation using advanced XRF analyzers.
Yes, absolutely. We offer complete custom terminal processing, including cold-pressed terminals, ultrasonic welded ends, and punched mounting holes. Our stamping division manufactures custom-shaped copper and steel stamping terminals to fit your specific contact configurations and spacing requirements.
Standard tooling configuration and production setup take 7 to 10 working days. For bulk orders, our high-capacity output (over 2,000 tons annually) enables us to complete large orders within 15 to 25 days. Delivery schedules depend on final ocean freight routing through nearby ports in Ningbo and Shanghai.
Precision-manufactured items engineered to meet rigorous international standards for connectivity and thermal management.
Partner with Zhejiang Xingma Copper Co., Ltd. for scalable, high-conductivity, and vibration-resistant connection solutions. Our engineers provide custom drawing design services, rapid prototypes, and comprehensive test reports for all custom projects.
Xingma
