• 25mm²: Suitable for branch lines or small equipment, such as household lighting circuits and wall-mounted air conditioners (below 2 horsepower). When laid in air at an ambient temperature of 30℃, the current-carrying capacity is approximately 85A;

• 50mm²: Can meet the needs of medium-sized electrical equipment, such as commercial central air conditioners (5 horsepower) and small industrial pumps, with a current-carrying capacity of approximately 130A;

• 95mm²: Used as a main line to connect the main distribution box and floor distribution boxes, or to supply power to large equipment (such as 10kW industrial motors), with a current-carrying capacity of up to 200A.

• 16A: Corresponding to low-power circuits, such as ordinary sockets (carrying electric kettles, microwave ovens, etc.), which need to be used with 16A circuit breakers to prevent overload;

• 30A: Suitable for medium-power equipment, such as cabinet air conditioners (3 horsepower) and electric water heaters (above 2000W), which need to be matched with 30A circuit breakers to ensure electrical safety.

• Residential indoor wiring: 25mm² cables are used for lighting and socket branch circuits, 50mm² for areas with concentrated high-power electrical appliances such as kitchens and bathrooms, and 95mm² as incoming main lines, adapting to the electricity demand of modern families with "multiple devices operating simultaneously" (such as whole-house smart home appliances and electric vehicle charging piles). Its black PVC sheath has a matte texture, integrating with wall and floor decoration styles, and is halogen-free and low-smoke (smoke density level ≤50), meeting residential fire safety requirements.

• Commercial buildings: In the ceiling mezzanines or wall trunking of office buildings and shopping malls, 35mm²-70mm² Cables are used to connect floor distribution boxes and merchants. The compact design can reduce the space occupied by trunking and lower construction difficulty; 95mm² cables serve as power distribution main lines, extending from the transformer room to each floor to support intensive power consumption (such as office computers, central air conditioners, and elevators).

• Small factories: Supplying power to auxiliary equipment such as machine tools, fans, and conveyors. 70mm² cables can meet the power transmission of 5.5kW motors. The lightweight characteristics of Aluminum Conductors reduce the load pressure during overhead laying, and the PVC sheath is resistant to oil and coolant corrosion, adapting to the workshop environment;

• Agricultural facilities: In greenhouses and irrigation systems, 25mm²-50mm² cables are used to connect water pumps and temperature control equipment. Their ultraviolet resistance (no cracks after 1000 hours of ultraviolet aging test) can withstand outdoor exposure, and they remain flexible at -20℃, suitable for cold regions in the north.

• Construction sites: Used as temporary cables to supply power to mixers and electric welders. 95mm² cables can carry the instantaneous impact current of 30kVA electric welders, and the wear-resistant PVC sheath resists sand and gravel friction;

• Event exhibitions: Used to supply power to temporarily built booth lighting and audio equipment. 35mm² cables weigh only 1.8kg/m, facilitating manual handling and rapid laying, and can be reused after disassembly to reduce costs.

• Conductor: High-purity electrolytic aluminum (purity 99.7%) with 0.05% iron added to enhance mechanical strength (tensile strength ≥160MPa), and conductivity ≥61% IACS (International Annealed Copper Standard). Although slightly lower than copper (100% IACS), its cost is only 1/3 of copper, and it is lightweight (density 2.7g/cm³ vs copper 8.9g/cm³), suitable for long-distance laying.

• Insulation layer: XLPE (cross-linked polyethylene), forming a three-dimensional network structure through peroxide cross-linking process. It has a long-term working temperature of 90℃, can withstand 250℃ high temperature in short circuits (within 5 seconds), insulation volume resistivity ≥1×10¹⁴Ω・m, and dielectric loss tangent ≤0.003 (at 90℃), effectively reducing energy loss.

• Sheath: PVC (polyvinyl chloride), using an environmentally friendly formula (lead content ≤0.1%), oxygen index ≥32 (reaching UL94 V-0 flame retardant grade), environmental stress crack resistance ≥1000 hours. After immersion in pH=4-9 acid-base environment for 72 hours, the tensile strength retention rate is ≥80%, adapting to humid and slightly corrosive scenarios.

• Filling and shielding: Polypropylene rope (PP rope) is filled between conductors to ensure structural roundness; the outer layer is wrapped with non-woven fabric tape to enhance the adhesion between the sheath and the insulation layer. There is no metal shielding layer (not needed in low-voltage scenarios), simplifying the structure and reducing costs.

• Appearance: All-black matte sheath with white marks printed on the surface (model, specification, voltage, meterage), which is clear and easy to read, facilitating identification and cutting during construction;

• Structure: Circular single-core design with an outer diameter range of 10.5mm (25mm²)-20.8mm (95mm²), and a weight per meter of 1.1kg-3.2kg, 40% lighter than Copper Cables of the same specification, reducing transportation and laying costs;

• Customization options: Cutting services can be provided according to needs (minimum length 10 meters), or colored stripes (such as red, blue) can be added to distinguish phase sequences, meeting three-phase power distribution needs.

• Aluminum rod smelting: 99.7% pure primary aluminum ingots are smelted in a 750℃ furnace, with trace amounts of iron and silicon (content ≤0.2%) added to improve strength. After degassing and slag removal, they are cast into Φ9.5mm aluminum rods;

• Wire drawing and compaction: Aluminum rods are drawn into Φ2.0mm Aluminum Wires through 12 wire drawing dies, then stranded and compacted through 1+6+12 type compaction dies to form circular conductors. Online annealing (300℃) is used during the process to eliminate stress, ensuring the conductor elongation rate ≥15%.

• XLPE mixing: Basic resin is mixed with cross-linking agent (DCP) and antioxidant in proportion, and plasticized in a 120℃ internal mixer to make insulation masterbatch;

• Continuous extrusion: A Φ65 extruder is used to extrude Insulation Material onto the conductor, with an extrusion temperature of 130℃-160℃ and a linear speed of 15m/min. Vacuum sizing is used to ensure the insulation thickness deviation ≤±0.1mm;

• Cross-linking and curing: The extruded cable enters a 180℃, 1.2MPa steam cross-linking pipe, stays for 20 minutes to complete the cross-linking reaction, and is rewound after cooling to 50℃.

• PVC granulation: PVC resin is mixed with plasticizer (DOP) and stabilizer (calcium-zinc composite stabilizer), and made into sheath granules through a twin-screw granulator;

• Extrusion molding: A Φ90 extruder is used to extrude PVC sheath onto the insulation layer, with an extrusion temperature of 160℃-180℃ and a pressure of 8MPa. Spray cooling is used for shaping to ensure the sheath is tightly attached to the insulation layer without bubbles or delamination.

• Electrical performance: Power frequency withstand voltage (1.5kv/1min), insulation resistance, partial discharge (≤10pC);

• Mechanical performance: Tensile test (sheath elongation at break ≥150%), bending test (20 cycles without cracks);

• Environmental test: Thermal aging (performance retention rate ≥80% after 100℃×168h), low-temperature impact (no cracks after -20℃×1h).

• Cables are wound on wooden cable reels in rolls of 100 meters/roll and 200 meters/roll. The diameter of the cable reel is Φ600mm (25mm²-50mm²) and Φ800mm (70mm²-95mm²). The reel body is made of poplar plywood (18mm thick), with a load capacity ≥500kg, and iron sheet guards are added to the edges to prevent collisions;

• The outer layer of the cable is wrapped with 2 layers of waterproof kraft paper (80g/m²), then covered with 1 layer of PE stretch film (0.03mm thick) for moisture and dust proofing; both ends of the wire are sealed with insulating caps to prevent water or foreign objects from entering.

• Product information: Model (Compact XLPE-PVC-ST2), specification (such as 25mm²), voltage (0.6/1kv), length, weight;

• Production information: Batch number, production date, execution standard, manufacturer name and contact information;

• Warning signs: "Avoid sun exposure", "Avoid rain", "Stacking limit 3 layers", "Center of gravity", facilitating correct operation in the logistics link.

• Export orders: Fumigation-free wooden boxes (meeting ISPM 15 standards) are used, filled with pearl cotton for buffering, and the wooden boxes are reinforced with steel strips nailed outside, suitable for sea or land transportation;

• Small batches (≤50 meters): Hard cardboard tube packaging (Φ150mm) is used, with plastic caps sealed at both ends, and express waybills pasted outside, suitable for express transportation.

• Domestic transportation:

• Short distance (≤300km): 4.2-meter trucks are used, which can load 20-30 rolls (about 2000-3000 meters) at a time. Rubber plates are padded in the carriage to prevent slipping, and cable reels are fixed with bandages;

• Long distance (>300km): Through dedicated logistics (such as Debon, Anneng), 6.8-meter or 9.6-meter trucks are used, with a stacking height ≤3 layers, and wooden boards are padded between layers to disperse pressure.

• International transportation:

• Sea freight: A 20-foot container can hold 100 rolls (10000 meters), and a 40-foot high container can hold 250 rolls (25000 meters). Moisture-proof membranes are laid in the containers;

• Air freight: Only accepts samples or small batch orders (≤50 meters), charged by weight (about 15 yuan/kg), using pressure-resistant carton packaging.

• Avoid exposure: The cable must be covered with a tarpaulin during transportation to prevent sheath aging caused by direct sunlight;

• Temperature control: For winter transportation (below -10℃), the driver must be informed in advance to avoid severe impact on the cable at low temperatures (such as throwing during loading and unloading);

• Rain and moisture protection: Ensure that the transportation tools are not leaking, and the storage warehouse must be ventilated and dry (relative humidity ≤70%).

• Order confirmation: After the customer pays a 30% advance payment, the factory confirms the inventory within 72 hours. If there is no inventory, the production cycle is 5-7 days;

• Production scheduling: Organize production according to the order specifications, and feedback the production progress daily (can be viewed in real-time through videos or photos);

• Factory inspection: After production is completed, a test report (electronic + paper version) is provided. The customer pays the 70% balance after confirmation;

• Logistics tracking: A logistics tracking number is provided within 24 hours after shipment, and customer service specialists update the transportation status daily until signing.

• Standard samples: 1-meter samples (including complete insulation and sheath) are provided for each specification, with a free test report (including conductor resistance, insulation thickness, and withstand voltage results);

• Custom samples: 5-meter-10-meter samples can be provided according to customer requirements for laying tests or equipment matching tests, supporting preprocessing such as cutting and stripping.

• Application channels: Official website online form, customer service hotline (400-XXX-XXXX), business manager docking;

• Information submission: Company name, purpose (such as project bidding, laboratory testing), required specifications, and receiving address must be provided;

• Approval cycle: Approval is completed within 1 working day, with priority given to old customers.

• New customers: Samples are free, but freight must be paid (domestic SF Express freight collect, international DHL freight collect);

• Old customers: Can apply for free samples 10 times a year (≤3 specifications each time), and the freight is borne by the manufacturer;

• Custom samples: Free within 5 meters, and 10 yuan/m for excess.

(4) After-sales Service