Duplex Overhead Service Drop Cable
Duplex Overhead Service Drop Cable is a reliable aerial cable for secondary power distribution from utility poles to service entrances. Available with aluminum or copper conductors (phase and neutral, stranded) insulated with XLPE or PE and assembled in duplex configuration, it offers excellent mechanical strength and weather resistance. Compliant with ASTM B-230, B-231, ICEA S-76-474, and ANSI/ICEA standards, this cable supports 600V applications with superior UV, moisture, and abrasion protection. The self-supporting design ensures reduced sag and easy installation over medium spans. The Duplex Overhead Service Drop Cable delivers low power losses, high current capacity, and long service life in harsh outdoor conditions. Lightweight and flexible, it is widely used for single-phase service drops in residential, commercial, and rural electrification projects requiring safe, cost-effective overhead connections worldwide.
Construction
Technical Specifications
Quality Control
Application
Construction
Duplex Overhead Service Drop Cable Constrution
Specification
• B-230 Aluminum Wire, 1350-H19 for Electrical Purposes.
• B-231 Aluminum Conductors, Concentric-Lay-Stranded.
•B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR).
• B-399 Concentric-Lay-Stranded 6201-T81 Aluminum Alloy Conductors.
• ICEA S-76-474-Neutral-supported Power Cable Assemblies With Weather-Resistant Extruded Insulation Rated 600Volts
• B-231 Aluminum Conductors, Concentric-Lay-Stranded.
•B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR).
• B-399 Concentric-Lay-Stranded 6201-T81 Aluminum Alloy Conductors.
• ICEA S-76-474-Neutral-supported Power Cable Assemblies With Weather-Resistant Extruded Insulation Rated 600Volts
Benefits
High strength aluminum alloy conductors provide excellent electrical conductivity and resistance to corrosion
Reinforced messenger wire enhances mechanical durability for overhead use
Weather-resistant insulation maintains integrity under harsh outdoor environments
Complies with strict industry standards ensuring safety and performance
Versatile for use in a wide range of overhead service drop applications
Reinforced messenger wire enhances mechanical durability for overhead use
Weather-resistant insulation maintains integrity under harsh outdoor environments
Complies with strict industry standards ensuring safety and performance
Versatile for use in a wide range of overhead service drop applications
Application
Primarily used for 120-volt overhead service applications such as street lighting, outdoor lighting, and temporary service for construction. To be used at voltages of 600 volts phase-to-phase or less and at conductor temperatures not to exceed 75 °C for polyethylene insulated conductors or 90 °C for cross-linked polyethylene (XLPE) insulated conductors.
Technical Specifications
Duplex Overhead Service Drop Cable
Duplex Overhead Service Drop Cable
| Code Name | Phase conductor |
Bare Neutral Message |
Nominal Weight (kg/km) |
Allowable Ampacity |
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|
Size & No. of wires |
Insulation Thick(mm) |
Nominal Dia.(mm) |
Size & No. of wires |
Rated Strength (kg) |
XLPE | Al | Total | (A) | ||
| Bare | OD | |||||||||
| AAC | ||||||||||
| Pekinese | 6-Solid | 1.14 | 4.1 | 6.4 | 6-7 | 255 | 20.8 | 72.9 | 94 | 78 |
| Collie | 6-7 | 1.14 | 4.6 | 6.9 | 6-7 | 255 | 23.8 | 72.9 | 97 | 78 |
| Cocker | 6-7 | 1.52 | 4.6 | 7.7 | 6-7 | 255 | 32.7 | 72.9 | 106 | 78 |
| Dachshund | 4-Solid | 1.14 | 5.2 | 7.5 | 6-7 | 400 | 26.8 | 114.6 | 141 | 103 |
| Spaniel | 4-7 | 1.14 | 5.9 | 8.2 | 6-7 | 400 | 29.8 | 116.1 | 146 | 103 |
| Cairn | 4-7 | 1.52 | 5.9 | 8.9 | 6-7 | 400 | 40.2 | 116.1 | 156 | 103 |
| Doberman | 2-7 | 1.14 | 7.4 | 9.7 | 2-7 | 612 | 38.7 | 184.5 | 223 | 136 |
| Airedale | 1-19 | 1.52 | 8.4 | 11.5 | 1-7 | - | 56.5 | 233.6 | 290 | 158 |
| Basset | 1/0-19 | 1.52 | 9.3 | 12.4 | 1/0-7 | 903 | 64 | 294.7 | 359 | 182 |
| Malmure | 1/0-7 | 1.52 | 9.4 | 12.5 | 1/0-7 | 903 | 64 | 294.7 | 359 | 182 |
| AAAC | ||||||||||
| Chihuahua | 6-Solid | 1.14 | 4.1 | 6.4 | 6-7 | 499 | 20.8 | 72.9 | 94 | 78 |
| Vizsla | 6-7 | 1.14 | 4.6 | 6.9 | 6-7 | 499 | 23.8 | 72.9 | 97 | 78 |
| Harrier | 4-Solid | 1.14 | 5.2 | 7.5 | 4-7 | 798 | 26.8 | 118.1 | 143 | 103 |
| Whippet | 4-7 | 1.14 | 5.9 | 8.2 | 4-7 | 798 | 29.8 | 116.1 | 146 | 103 |
| Schnauzer | 2-7 | 1.14 | 7.4 | 9.7 | 2-7 | 1270 | 39.7 | 184.5 | 223 | 136 |
| Affan | 1-7 | 1.52 | 9.3 | 12.4 | 1-7 | 2023 | 64 | 295.1 | 360 | 182 |
| Hoder | 1/0-19 | 1.52 | 9.4 | 12.5 | 1/0-7 | 2023 | 64 | 296.1 | 360 | 182 |
| ACSR | ||||||||||
| Setter | 6-Solid | 1.14 | 4.1 | 6.4 | 6/6/01 | 540 | 20.8 | 72.9 | 94 | 78 |
| Shepherd | 6-7 | 1.14 | 4.6 | 6.9 | 6/6/01 | 540 | 23.8 | 72.9 | 97 | 78 |
| Retriever | 6-7 | 1.52 | 4.6 | 7.7 | 6/6/01 | 540 | 32.7 | 72.9 | 106 | 78 |
| Eskimo | 4-Solid | 1.14 | 5.2 | 7.5 | 4/6/01 | 844 | 26.8 | 114.6 | 141 | 103 |
| Terrier | 4-7 | 1.14 | 5.9 | 8.2 | 4/6/01 | 844 | 29.8 | 116.1 | 146 | 103 |
| Yorkshire | 4-7 | 1.52 | 5.9 | 8.9 | 4/6/01 | 844 | 40.2 | 116.1 | 156 | 103 |
| Chow | 2-7 | 1.14 | 7.4 | 9.7 | 2/6/01 | 1293 | 38.7 | 184.5 | 223 | 136 |
| Labrador | 1-19 | 1.52 | 8.4 | 11.5 | 1/6/01 | 1610 | 56.5 | 233.6 | 290 | 158 |
| Bloodhound | 1-7 | 1.52 | 9.3 | 12.4 | 1/0-6/1 | 1987 | 64 | 294.7 | 359 | 182 |
| Bull | 1/0-19 | 1.52 | 9.4 | 12.5 | 1/0-6/1 | 1987 | 64 | 294.7 | 359 | 182 |
Quality Control
Duplex Overhead Service Drop Cable
Raw Material Test
Raw material testing for the Duplex Overhead Service Drop Cable begins with conductor (aluminum/copper) inspection for purity, conductivity, and elongation per ASTM standards. Strands are checked for diameter uniformity and surface quality. XLPE/PE insulation compounds undergo melt flow index, density, carbon black content (UV protection), and thermal aging tests via OIT and DSC analysis. Samples face contamination screening and environmental stress cracking. The step-by-step process: incoming batch verification, sampling protocol, chemical composition analysis via spectrometry, mechanical property testing (before/after aging), electrical resistivity measurement, and material approval decision. Only qualified materials proceed, ensuring the Duplex Overhead Service Drop Cable's conductor integrity, insulation durability, weather resistance, and reliable performance in overhead duplex applications.
Process inspection
Conductor stranding is monitored for lay length, compactness, and defects using optical gauges. Insulation extrusion controls thickness uniformity and concentricity with online laser systems. Duplex assembly verifies twisting tension and balance. Spark testing detects pinholes in real time. Dimensional accuracy, ovality, and marking are checked continuously. Key steps: material pre-drying confirmation, extrusion parameter logging (temperature, speed), intermediate wall thickness sampling, twisting tension monitoring, defect marking/removal, and post-process cooling control. This multi-point oversight guarantees the Duplex Overhead Service Drop Cable achieves void-free insulation, proper duplex configuration, uniform covering, and full compliance with ASTM and ICEA standards throughout production for reliable overhead service.
Finished Product
Duplex Overhead Service Drop Cable undergoes thorough testing for compliance. Routine tests include conductor resistance, insulation thickness, high voltage spark test, and overall tensile strength. Mechanical tests cover elongation, cold bend, and impact resistance. Weathering via UV aging and heat distortion is assessed. The process steps: reel sampling, preparation with terminations, gradual voltage/load application, timed exposure to heat/UV, hold phase monitoring, post-test dimensional/electrical re-measurement, and visual inspection for defects. Additional checks include sag-tension verification and marking durability. Only cables passing all criteria are approved, confirming the Duplex Overhead Service Drop Cable's electrical safety, mechanical strength, weather endurance, and reliable performance for overhead duplex secondary distribution in residential service drops.
Application
Duplex Overhead Service Drop Cable is widely used for overhead single-phase service drops to homes, apartments, and small commercial buildings. Perfect for aerial connections from utility poles to service entrances requiring durable, weatherproof conductors up to 600V.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (3)
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What are the advantages of power cables and overhead lines?(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people; (2) The maintenance workload is small and frequent inspections are not required; (3) No need to erect towers; (4) Help improve power factor.
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Which aspects should be considered when choosing the cross section of a power cable?(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.
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What are the measures for cable fire prevention?(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
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What should be paid attention to during the transportation and handling of cables?(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat. (2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
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What inspections should be carried out for the acceptance of cable lines?(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear; (2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements; (3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements; (4) Good grounding; (5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted; (6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.
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