Material Composition: Aluminum alloy (AA 6201 or AA 6101) with 0.6–0.9% magnesium and 0.5–0.9% silicon, enhancing tensile strength (160–180 N/mm²) and corrosion resistance. The alloy delivers a conductivity of 52% IACS, ensuring efficient power transmission.
Stranding Design:
50mm² Phase Conductors: 37 strands of 1.3mm diameter wire, twisted helically with a lay length of 18–20× the strand diameter. This design enhances Flexibility, allowing 10,000+ bending cycles without fatigue.
25mm² Neutral Conductor: 37 strands of 0.9mm diameter wire, with the same helical twist pattern to match the phase conductors’ flexibility.
Cross-Sectional Area:
Phase: 50mm² each
Neutral: 25mm²
Current-Carrying Capacity (at 30°C ambient temperature):
Phase Conductors: 120A
Neutral Conductor: 85A
40°C: 90% of rated current (108A for phases, 76.5A for neutral)
50°C: 80% of rated current (96A for phases, 68A for neutral)
60°C: 70% of rated current (84A for phases, 59.5A for neutral)
Mechanical Strength:
Tensile strength per phase conductor: 2.2 kN
Tensile strength for neutral conductor: 1.2 kN
Combined tensile strength of triplex bundle: 5.6 kN, enabling maximum span lengths of 50m between support poles when tensioned to 2–3% of breaking strength.
DC Resistance (at 20°C):
Phase conductors: 0.216 Ω/km
Neutral conductor: 0.432 Ω/km
Insulation Thickness:
Phase conductors (50mm²): 1.0mm
Neutral conductor (25mm²): 0.8mm
Dielectric Strength: 20 kV/mm (tested per IEC 60243), preventing electrical leakage even in humid or polluted environments.
Temperature Range:
Continuous operation: -40°C to +90°C
Short-term overload: +130°C for up to 5 seconds (accommodating transient current spikes from utility grids)
Environmental Resistance:
UV Stability: Contains 2–3% carbon black additive, withstanding 5,000 hours of QUV exposure (ASTM G154) with <20% loss in tensile strength.
Moisture Resistance: Water absorption <0.5% by weight after 24-hour immersion (ASTM D570).
Chemical Resistance: Resistant to salt spray (1,000 hours, ASTM B117), industrial pollutants (e.g., sulfur dioxide), and agricultural chemicals.
Flame Retardancy: Complies with IEC 60332-1-2, self-extinguishing within 60 seconds of ignition, with no flame spread beyond 50mm.
Color Coding:
Phase conductors: Red and black (UV-stable pigments)
Neutral conductor: White or gray (for easy identification during installation)
Overall Diameter: 26mm (when bundled), with a tolerance of ±0.5mm.
Weight: 2.1 kg/m, balancing robust performance with manageable handling during installation.
Minimum Bending Radius:
Fixed installations: 12× outer diameter (312mm)
Dynamic bending (during installation): 20× outer diameter (520mm)
Voltage Rating: 0.6/1kV (600V phase-to-ground, 1000V phase-to-phase), compliant with IEC 60502-2 and UL 854 standards.
Impact Resistance: Withstands 5J impact at -40°C (IEC 60811-1-2), ensuring durability against falling debris or wildlife contact.
Suburban Developments: Powers 30–50 homes with moderate electrical demands, including central air conditioning (2–3 tons), electric water heaters (4500W), and multiple appliances (ovens, dryers). The 50mm² phase conductors handle aggregated loads up to 58 kVA, while the 25mm² neutral ensures stable voltage across 120V circuits.
Townhouse Complexes: Connects row houses or duplexes, where the triplex design simplifies routing through shared utility corridors. Its 50m span capability reduces the number of poles needed in densely populated communities.
Rural Homes: Serves remote properties with long spans between utility poles, eliminating the need for intermediate supports and lowering infrastructure costs by 30–40% compared to traditional bare conductors.
Strip Malls and Retail Areas: Supplies power to 5–10 small businesses (e.g., convenience stores, cafes, salons) with combined loads up to 50 kVA. The cable’s 120A capacity supports lighting, refrigeration, and small machinery.
Office Parks: Powers low-rise office buildings with HVAC systems, computers, and office equipment. Its flame retardancy meets fire safety codes for commercial occupancies.
Industrial Auxiliary Lines: Serves secondary systems in factories, such as lighting, control panels, and auxiliary machinery (e.g., conveyors, pumps), where reliability and durability are critical.
Village Power Grids: Connects remote communities to main distribution lines, with spans up to 50m reducing pole requirements in sparsely populated areas.
Agricultural Facilities: Powers barns, greenhouses, and irrigation systems, with chemical resistance protecting against fertilizers and pesticides.
Recreational Areas: Supplies power to campgrounds, parks, and sports facilities, with UV resistance ensuring longevity in open-air installations.
New Subdivisions: Integrates new residential areas into existing grids, with easy installation reducing construction delays.
Grid Upgrades: Replaces aging bare conductor systems or smaller cables in older neighborhoods, increasing capacity to meet modern electrical demands (e.g., EV chargers, smart home systems).
Temporary Power: Provides emergency supply during storm recovery or construction, with quick deployment features minimizing downtime.
Strength-to-Weight Ratio: 30% lighter than Copper Conductors of equivalent capacity, reducing stress on support poles and brackets. This allows longer spans (50m) and lowers installation costs.
Cost Efficiency: 50–60% cheaper than copper, making large-scale residential and rural electrification projects economically feasible.
Corrosion Resistance: The alloy forms a protective oxide layer that self-heals when damaged, preventing rust. For coastal applications, an optional zinc coating extends service life by 50% in salt-rich environments.
Thermal Performance: Aluminum’s higher thermal conductivity (205 W/m·K) compared to copper (401 W/m·K) dissipates heat more evenly, reducing hot spots during high-load operation.
Cross-Linked Structure: Unlike thermoplastic polyethylene (PE), XLPE undergoes chemical or electron beam cross-linking, creating a three-dimensional molecular network. This structure resists softening at high temperatures (+90°C) and hardening in cold (-40°C), ensuring consistent performance across climates.
Mechanical Toughness: The insulation withstands abrasion (100 cycles, ASTM D4703) and impact, protecting the conductor from wildlife (bird pecking, rodent gnawing) and physical damage during installation.
Moisture Barrier: XLPE is inherently water-resistant, with a low water vapor transmission rate (0.1 g/m²·day), preventing conductor corrosion even if the outer surface is damaged.
Unified Structure: Conductors bound with UV-stabilized polyethylene tape (0.15mm thick) reduce wind resistance by 40% vs. individual lines, minimizing galloping (excessive oscillation) in high winds.
Ripcord Feature: A 2mm polyester ripcord embedded in the tape allows quick conductor separation during termination, cutting installation time by 25% compared to unBundled Cables.
Color Coding: Distinct colors (red/black for phases, white/gray for neutral) prevent wiring errors during installation, enhancing safety and compliance with electrical codes.
Compact Profile: The 26mm diameter and 2.1 kg/m weight allow installation in narrow spaces (e.g., between buildings, through tree canopies) without compromising performance.
Wire Drawing: Aluminum rods (9.5mm diameter) are drawn through diamond dies to reduce their diameter to 1.3mm (for 50mm²) and 0.9mm (for 25mm²), ensuring uniform strand size.
Stranding:
50mm² conductors: 37×1.3mm strands are twisted in a planetary stranding machine, with computer-controlled tension to maintain consistent lay length (18–20× diameter).
25mm² conductor: 37×0.9mm strands undergo the same process, ensuring matching flexibility with phase conductors.
Annealing: Stranded Conductors are heat-treated at 300°C in a continuous annealing furnace, relieving internal stresses from drawing and stranding. This step ensures the conductors remain flexible during installation.
Pre-Heating: Conductors are passed through an induction heater, raising their temperature to 80°C to ensure proper adhesion of the insulation.
Extrusion:
Phase conductors: Molten XLPE compound (180–200°C) is applied to achieve 1.0mm thickness using a cross-head extruder with precision dies.
Neutral conductor: XLPE is applied to 0.8mm thickness using the same process, with a separate die calibrated for the smaller conductor size.
Cross-Linking: Insulated Conductors enter a continuous vulcanization (CV) tube, where high-pressure steam (180°C, 20 bar) triggers cross-linking of the XLPE molecules. This step takes 2–3 minutes and is critical for achieving thermal stability.
Cooling and Coloring: Conductors are cooled in a water bath to 60°C, then color-coded with pigmented XLPE layers (red/black for phases, white/gray for neutral) using UV-stable pigments.
Bundling: The three insulated conductors are bound together with UV-stabilized polyethylene tape, with a polyester ripcord applied longitudinally between conductors during this process.
Printing: Manufacturer details, conductor sizes, voltage rating (0.6/1kV), and standards compliance (IEC 60502-2, UL 854) are printed on the tape using UV-stable ink.
Testing: Each 500m reel undergoes:
Conductivity testing (4-point probe) to verify 52% IACS.
Insulation resistance testing (≥1000 MΩ at 1000V DC).
Tensile strength testing of the complete bundle.
Weathering tests (UV exposure, salt spray, temperature cycling).
Spooling: Passed cables are wound onto steel reels with 1.2m diameter flanges, ready for distribution.
Steel Reels: Heavy-duty steel reels with 1.2m diameter flanges and a 50mm central axle. Each reel holds 500m of cable (weight: 1050kg).
Reel Features: Reinforced steel rims to prevent flange bending; lifting lugs rated for 2000kg (2× reel weight) for safe crane handling; and a plywood base to protect the cable end during storage.
Protective Covering: The reel is wrapped in a 200μm thick UV-resistant polyethylene film, heat-sealed to prevent moisture ingress. A 1kg moisture-absorbing desiccant is placed inside the film to combat condensation during transport.
Labeling: A weatherproof tag (aluminum-backed) is attached to the reel, displaying:
Product code and description (0.6/1kV Triplex ABC Cable 2X50+25 mm² Al/XLPE)
Length (500m) and net weight (1050kg)
Voltage rating (0.6/1kV) and standards compliance (IEC 60502-2, UL 854)
Batch number and production date (for traceability)
Handling instructions: “Do not drop,” “Store vertically,” “Avoid extreme temperatures”
Truck Requirements: Flatbed trucks with a minimum 12-ton payload capacity, equipped with winch systems for loading/unloading. Reels are secured using 50mm webbing straps (50kN strength) at 90° intervals, with wooden dunnage (100mm thick) between reels to prevent abrasion.
Route Planning: Avoidance of roads with weight restrictions or rough terrain that could cause reel movement. Drivers receive training to handle oversized loads and secure reels properly.
Environmental Controls: Reels are covered with waterproof tarpaulin during transport, and temperature loggers (recording every 30 minutes) ensure storage between -10°C and +40°C.
Sea Freight: 20ft containers accommodate up to 2 reels (1000m total), with airbags (100mm thick) placed between reels to prevent movement during transit. Containers are fitted with ventilation slots and an additional 5kg desiccant to combat salt moisture.
Rail Transport: Reels are loaded into enclosed railcars, secured to floor anchors with steel chains (8mm diameter). Railcars are temperature-controlled to avoid extreme heat or cold.
Documentation: Each shipment includes a certificate of compliance, material test report, and installation guide. International shipments include customs declarations, certificates of origin, and safety data sheets (SDS) for XLPE insulation.
Unloading: Use forklifts with reel handlers (minimum 12-ton capacity) or cranes with spreader bars. Never lift reels by the flange, as this may cause bending.
Storage: Reels must be stored vertically on level concrete surfaces, elevated 100mm on wooden pallets to avoid ground moisture. Outdoor storage is limited to 30 days, with reels covered by UV-resistant tarpaulin.
Unspooling: Use motorized reel stands to maintain tension (200–300N) during installation, preventing cable twisting. The reel should rotate freely to avoid kinking.
In-Stock Items: Processed within 48 hours of order confirmation, with a detailed email including reel count, total length, and estimated delivery date.
Custom Orders: (e.g., longer reel lengths or special packaging) require 7–10 business days, with weekly progress updates provided to customers.
Order Tracking: Customers receive a unique tracking number via email, allowing real-time monitoring through the company’s logistics portal (showing location, temperature, and handling status).
Domestic (North America/Europe): 3–5 business days for truck transport within 500km; 7–10 days for remote areas (e.g., mountainous regions, islands).
International: 14–21 days by sea freight (major ports); 3–5 days by air freight (for urgent orders, limited to 1 reel per shipment due to weight restrictions).
Expedited Service: Available for a 30% premium, with domestic delivery within 24–48 hours and international air freight within 72 hours.
Domestic: \(600–\)900 per reel (500m), depending on distance from the nearest warehouse.
International: Sea freight \(1500–\)2500 per container (4 reels); air freight \(8–\)12 per kg (500m reel = ~\(5000–\)7500).
Bulk Discounts: Orders of 10+ reels qualify for 15% shipping discount; utility partners receive additional 10% off annual contracts.
5m length of triplex cable, including all three conductors (2X50+25 mm²).
Technical datasheet with material certifications and test results.
Installation guide with termination recommendations.
Compliance certificates (IEC 60502-2, UL 854).
Samples ordered via website, email, or phone; specify quantity and delivery address.
Nominal fee of $150 (refundable on first order of ≥1 reel).
Shipped via DHL Express, with tracking provided; delivery within 3–5 business days (domestic) or 5–7 days (international).
On-Site Training: Certified engineers provide installation workshops (available for orders ≥5 reels), covering:
Proper tensioning (2–3% of breaking strength)
Termination techniques using aluminum compression lugs
Weatherproofing connections
Compliance with NESC (National Electrical Safety Code) and EN 50341 standards
Remote Support: 24/7 hotline and email support for troubleshooting; video consultations available for complex issues (e.g., insulation damage, span optimization).
Online Resources: Access to installation videos, CAD drawings, and FAQ library via customer portal, updated quarterly based on field feedback.
30-year warranty against manufacturing defects, including:
Insulation failure (cracking, delamination, reduced dielectric strength)
Conductor corrosion due to material flaws
Defective binding tape or ripcord failure
Warranty excludes damage from:
Improper installation (exceeding bending radius, over-tensioning)
Extreme events (tornadoes, floods, direct lightning strikes)
Vandalism or physical damage post-installation
Customer submits claim with:
Proof of purchase
Photos/videos of defect
Installation details and environmental conditions
Technical team reviews within 48 hours; on-site inspection arranged if needed.
Approved claims resolved via:
Replacement cable (shipped within 48 hours for urgent cases)
Prorated refund based on remaining service life
On-site repair by company technicians (for minor issues)
Annual inspection reminders sent to customers.
Recommended maintenance schedule:
Visual inspection of insulation for cracks/UV damage (yearly)
Tension checks (every 5 years)
Connection re-tightening (every 10 years)
Access to certified contractor network for maintenance services, with pre-negotiated rates for customers.
شركة Hongtai Cable Technology Co. ، Ltd
البريد الإلكتروني: export@qlcables.com
sales@qlcables.com
Tel/Whatsapp:+86-18032066271
إضافة ： منطقة التنمية الصناعية Xiaokou ، مقاطعة نينغجين ، مدينة Xingtai ， مقاطعة Hebei ، الصين
حقوق الطبع والنشر © Hongtai Cable Technology Co. ، Ltd الدعم الفني:Ronglida Technology
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