Copper Conductor Duplex Service Drop Cable 600V
The Copper Conductor Duplex Service Drop Cable 600V is a high-performance overhead cable for secondary power distribution from utility poles to service entrances. Featuring two insulated copper conductors (phase and neutral) twisted around a bare or insulated neutral messenger, it offers superior conductivity and mechanical strength. Insulation options include XLPE or PE for excellent UV, moisture, and abrasion resistance. Compliant with ASTM B-1, B-2, B-3, B-8, ICEA S-76-474, and ANSI/ICEA standards, this cable supports 600V applications with low voltage drop and high current capacity. The robust design ensures reduced sag, easy installation, and long service life in harsh weather conditions. The Copper Conductor Duplex Service Drop Cable 600V delivers minimal power losses and reliable performance for single-phase service drops. Widely used in urban, suburban, and rural electrification projects requiring premium copper overhead connections with enhanced durability and safety.
Construction
Technical Specifications
Quality Control
Application
Construction
Copper Conductor Duplex Service Drop Cable 600V Constrution
Specifications
Meets or exceeds the following ASTM specifications:
B-1 Hard-Drawn Copper Wire.
B-3 Soft or Annealed Copper Wire.
B-8 Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft.
Meets or exceeds all applicable requirements of ANSI/ICEA S-76-474 for polyethylene and cross-linked polyethylene insulated conductors.
B-1 Hard-Drawn Copper Wire.
B-3 Soft or Annealed Copper Wire.
B-8 Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft.
Meets or exceeds all applicable requirements of ANSI/ICEA S-76-474 for polyethylene and cross-linked polyethylene insulated conductors.
Conductor
Conductors are concentrically stranded compressed soft copper insulated with either cross-linked polyethylene or conventional polyethylene.
Neutral Messengers
Neutral messengers are either solid or concentrically stranded bare hard-drawn copper.
Notes
Code words for XLP insulated products are formed by adding "XLP" to the conventional polyethylene code words above (e.g., Theta/XLP).
Ampacity figures for black insulation only. Based on conductor temperature of 75 ºC for polyethylene insulated conductors, 90 ºC for XLP insulated conductors, ambient temperature of 40 ºC 2 ft./sec. wind in the sun.
Ampacity figures for black insulation only. Based on conductor temperature of 75 ºC for polyethylene insulated conductors, 90 ºC for XLP insulated conductors, ambient temperature of 40 ºC 2 ft./sec. wind in the sun.
Application
Used to supply power, usually from a pole-mounted transformer, to the user's service head where connection to the service entrance cable is made. Also suitable for installations for street lighting, security lights, 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 ºC for polyethylene insulated conductors and 90 ºC for cross-linked polyethylene (XLP) insulated conductors.
Technical Specifications
Copper Conductor Duplex Service Drop Cable 600V
Copper Conductor Duplex Service Drop Cable 600V
| Rated voltage | kV | 0.6/1 |
| Test voltage | Veff kV/Hz | 4/50 |
| Laying temperature | °C | min. -5 |
| Operating temperature | °C | -30 ~ +90 |
| Conductor temperature | °C | max. +90 |
| Short-circuit temperature | °C/s | max. +250 /5 |
| Bending radius (min.) | mm | 20 × Ø of cable |
Quality Control
Copper Conductor Duplex Service Drop Cable 600V
Raw Material Test
Raw material testing for the Copper Conductor Duplex Service Drop Cable 600V begins with copper wire inspection for purity (99.99%), conductivity (>100% IACS), and elongation per ASTM standards. Conductor 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 ageing 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 ageing), electrical resistivity measurement, and material approval decision.
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 Copper Conductor Duplex Service Drop Cable 600V 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
Copper Conductor Duplex Service Drop Cable 600V 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 Copper Conductor Duplex Service Drop Cable 600V's electrical safety, mechanical strength, weather endurance, and reliable performance for overhead duplex secondary distribution in residential service drops.
Application
Copper Conductor Duplex Service Drop Cable 600V is widely used for overhead single-phase service drops to homes, small apartments, and commercial buildings. Perfect for aerial connections from utility poles to service entrances requiring premium copper conductivity and durability up to 600V.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
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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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