Copper Conductor Duplex Service Drop Cable 600V
The Copper Conductor Duplex Service Drop Cable is specifically engineered for overhead power delivery applications, connecting the pole-mounted transformer to the user’s service entrance. This cable is widely used for residential, commercial, and temporary power setups, including street lighting, security lights, and construction site power distribution. Built for voltages up to 600 volts phase-to-phase, the cable ensures safe, reliable conduction with a maximum conductor temperature rating of 75°C for polyethylene insulation and 90°C for cross-linked polyethylene (XLP) insulation. This dual insulation choice offers flexibility depending on the environmental demands and application specifics.
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
NPC has always chosen raw material suppliers who have a good reputation, possess stable supply capabilities and have passed international quality system certifications (such as ISO 9001). And establish a long-term cooperative relationship with it, forming a stable and reliable raw material supply chain.
We will ensure that all raw materials are subject to strict inspection procedures upon entry to the factory, and can only be stored in the warehouse after they have been confirmed to meet the standards.
Process inspection
NPC has strict quality control procedures for each process in the cable production process.
Process documents: Develop detailed process flow and operation instructions to clarify the operating specifications and quality standards of each process.
Equipment calibration: Regularly calibrate key equipment such as wire drawing machines, stranding machines, extruders, and diameter gauges to ensure that the accuracy meets the requirements.
First piece confirmation: Before each batch of production, the first piece is trial-produced to confirm that the process parameters, product dimensions, electrical performance, etc. meet the standards before mass production can be carried out.
Finished Product
Inspectors conduct ex-factory inspections on cables according to relevant standards and corresponding product inspection specifications to ensure that each ex-factory product complies with the process regulations.
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 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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