1. Product-Specific Details
1.1 Specifications and Parameters
Industrial cross-linked XLPE tinned copper
Power Cables, supplied by Chinese manufacturers, are engineered with precise specifications to meet rigorous industrial demands. The core conductor is tinned copper, with cross-sectional areas ranging from 0.5mm² to 630mm², accommodating current ratings from 5A to 1200A depending on the application. The insulation layer is made of cross-linked polyethylene (XLPE), which boasts a maximum continuous operating temperature of 90°C and a short-circuit temperature tolerance of 250°C for up to 5 seconds, ensuring stability under extreme load conditions.
Voltage ratings for these cables typically span 0.6/1kV (low voltage) to 35kV (medium voltage), with some specialized variants reaching 110kV for high-power industrial setups. The tinned
Copper Conductors feature a tin coating thickness of 8-12μm, providing enhanced corrosion resistance compared to bare copper. Stranding configurations vary, with options including class 5 flexible stranding (for applications requiring frequent bending) and class 2 solid stranding (for fixed installations), ensuring adaptability to diverse industrial environments.
Mechanical specifications include a minimum bending radius of 6-12 times the cable diameter (depending on conductor size), allowing for installation in tight spaces such as machinery enclosures or cable trays. The overall diameter ranges from 4mm (for 0.5mm² conductors) to 80mm (for 630mm², medium-voltage variants), with weight per meter varying from 0.01kg to 2.5kg, facilitating handling and transportation.
1.2 Special Purpose
These industrial XLPE tinned
Copper Cables are designed for high-performance applications across key sectors. In manufacturing, they power heavy-duty welding machines, where their tinned
Copper Conductors resist spatter-induced corrosion and XLPE insulation withstands the high temperatures generated during welding operations. Their
Flexibility makes them ideal for robotic welding arms, which require cables to bend repeatedly without damage.
In renewable energy facilities, such as solar farms and wind turbines, the cables transmit power from generators to inverters. The XLPE insulation’s resistance to UV radiation and moisture ensures longevity in outdoor environments, while the tinned copper conductors prevent corrosion from exposure to rain or humidity. They are also used in data centers, where low smoke zero halogen (LSZH) variants minimize fire hazards, and their high current-carrying capacity supports dense server setups.
Other critical applications include marine and offshore industries, where the tinned copper’s anti-corrosive properties protect against saltwater, and XLPE’s
Chemical Resistance withstands harsh cleaning agents. In electric vehicle (EV) manufacturing plants, these cables handle high-voltage charging systems, thanks to their insulation’s dielectric strength (≥20kV/mm) and thermal stability.
1.3 Materials and Styles
The primary materials of these cables are carefully selected for durability and performance. The conductor is high-purity electrolytic copper (99.95% purity) with a tin plating, which enhances solderability and prevents oxidation. The insulation is cross-linked polyethylene (XLPE), produced via either chemical cross-linking (using peroxides) or radiation cross-linking (electron beam), resulting in a thermoset structure that resists melting and maintains integrity at high temperatures.
Jacket materials vary by application:
PVC Jackets offer cost-effectiveness and good mechanical protection for indoor use;
LSZH Jackets are flame-retardant and emit minimal smoke, suitable for public spaces and data centers; and polyurethane (PU) jackets provide superior abrasion resistance for heavy industrial environments. Some variants include a metallic screen (copper tape or braid) to shield against electromagnetic interference (EMI), critical for sensitive equipment like medical imaging machines in industrial healthcare facilities.
Styles range from single-core to
Multi-Core (up to 36 cores) configurations.
Multi-Core Cables integrate color-coded conductors (per IEC 60446 standards) for easy phase identification, while armored variants (steel wire or tape) add mechanical strength for underground or outdoor installations.
Flat Cables are available for applications with limited vertical space, such as between machinery components, while round cables are standard for general-purpose use.
1.4 Production Process
Chinese suppliers adhere to strict manufacturing processes to ensure cable quality. The production begins with copper rod drawing, where 8mm diameter copper rods are drawn through dies to form thin wires (0.1-0.8mm diameter), which are then stranded into conductors using high-speed stranding machines. The stranding process ensures uniform current distribution and flexibility.
Next, the conductors undergo tin plating via electrolysis, where they are immersed in a tin sulfate solution and subjected to an electric current, depositing a uniform tin layer. This step is critical for corrosion resistance and is inspected using X-ray fluorescence (XRF) to verify coating thickness.
Insulation extrusion follows, where XLPE compound is melted and extruded over the tinned conductors using precision extrusion lines. For chemical cross-linking, the extruded cable is passed through a vulcanization tube (at 200-250°C) to activate cross-linking agents; for radiation cross-linking, electron beam accelerators induce molecular bonding. This cross-linking step is monitored via differential scanning calorimetry (DSC) to confirm conversion efficiency (>90%).
If applicable, metallic shielding is applied using braiding machines (for copper braid) or tape wrapping machines (for copper tape). The jacket is then extruded over the insulated and shielded conductors, with cooling tanks ensuring proper solidification. Finally, the cables undergo rigorous testing, including voltage withstand tests (AC 3.5kV for 5 minutes), insulation resistance tests (≥1000MΩ at 25°C), and tensile strength tests (≥12MPa for XLPE), before being spooled onto reels.
2. General Product Information
2.1 Packaging
Chinese suppliers prioritize robust packaging to protect cables during transit. Small to medium-length cables (up to 500m) are spooled onto wooden or steel reels, with flanges ranging from 300mm to 1200mm in diameter, depending on cable size. Reels are fitted with steel pallets for forklift handling and wrapped in waterproof plastic film to prevent moisture damage. For longer lengths (1000m+), heavy-duty steel reels with reinforced flanges and central axles are used, capable of supporting weights up to 5000kg.
Cable ends are sealed with heat-shrinkable caps to prevent dust and water ingress. Each reel is labeled with essential information: cable type, specifications, length, voltage rating, batch number, and compliance certifications (e.g., CE, UL, CCC). For export, reels are often crated in plywood boxes (ISPM 15-compliant) to meet international phytosanitary standards, ensuring smooth customs clearance.
2.2 Transportation
Transportation logistics are tailored to cable size and destination. For domestic shipments in China, road transport via trucks with flatbeds or curtain-sided trailers is common, with reels secured using steel straps to prevent shifting. For international deliveries, containers (20ft or 40ft) are used, with reels stacked vertically (for small reels) or horizontally (for large reels) to maximize space.
Suppliers partner with reputable freight forwarders to handle multimodal transport (road + sea/air), offering door-to-door or port-to-port services. Sea freight is preferred for large volumes due to cost-effectiveness, with transit times ranging from 15-45 days (depending on destination). Air freight is available for urgent orders, with delivery in 3-7 days, though at a higher cost. Temperature-controlled transport is optional for
LSZH Cables to prevent jacket deformation in extreme climates.
2.3 Shipping and Delivery
Order processing begins with order confirmation, where suppliers verify specifications, quantities, and delivery terms (FOB, CIF, DDP). Production lead times typically range from 7-15 days for
Standard Cables and 20-30 days for custom variants (e.g., special jackets or voltage ratings). Once production is complete, customers receive a pre-shipment inspection (PSI) report, including test certificates and photos, to approve before shipping.
Shipping documentation includes a commercial invoice, packing list, bill of lading (BOL), certificate of origin (CO), and compliance certificates. Suppliers coordinate with logistics providers to ensure on-time dispatch, with tracking numbers provided for real-time shipment monitoring. Delivery is confirmed upon receipt, with customers required to inspect reels for damage and sign a delivery receipt.
2.4 Samples
Chinese suppliers offer free or low-cost samples (typically 1-5m lengths) to facilitate customer evaluation. Sample requests are processed within 3-5 days, with options to customize specifications (e.g., conductor size, jacket material). Samples are shipped via express courier (DHL, FedEx) with tracking, and include a sample certificate detailing test results (insulation resistance, voltage withstand).
Customers can request samples for various purposes: material testing (tensile strength, elongation), performance testing (current carrying capacity, EMI shielding), or compatibility checks with existing equipment. Suppliers often use samples as a tool to demonstrate quality, with many offering discounts on bulk orders if samples are approved.
2.5 After-Sales Service
Comprehensive after-sales support is a hallmark of Chinese suppliers. A dedicated customer service team is available 24/7 via email, phone, or WeChat to address queries. For installation issues, technical engineers provide guidance via video calls or on-site visits (for large projects), offering advice on bending radii, termination methods, and cable management.
Warranty coverage ranges from 12-36 months, depending on the cable type, covering defects in materials or workmanship. In case of non-conformity, suppliers offer replacements, repairs, or refunds, with claims processed within 5-10 working days upon receipt of evidence (photos, test reports).
Suppliers also provide long-term support, including cable maintenance guides, recycling advice (for end-of-life disposal), and updates on regulatory changes (e.g., new EU standards). Many offer training sessions for customer technicians, either in-person at their facilities or via webinars, covering topics like cable testing and troubleshooting.
In summary, industrial cross-linked XLPE tinned copper
Power Cables from Chinese suppliers combine precision engineering, versatile applications, and reliable support, making them a preferred choice for global industrial clients. Their commitment to quality in both product and service ensures long-term performance and customer satisfaction.
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