4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable
The 4/0-4/0-4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable is engineered for high-performance overhead power distribution from utility poles to residential, commercial, or light industrial weatherheads. It features concentric-lay-stranded 1350-H19 aluminum conductors (#4/0 AWG, 19-strand), black cross-linked polyethylene (XLPE) insulation for superior weather, UV, and thermal resistance, and a bare neutral messenger (#4/0 AWG, typically ACSR or AAAC 6201 alloy) for mechanical support and conductivity. Rated for 600 volts phase-to-phase at conductor temperatures up to 90°C (XLPE) or 75°C (Poly), it delivers an allowable ampacity of approximately 315 amps (XLP). Compliant with ASTM B-230, B-231, B-232, B-399, and ICEA S-76-474 standards, this robust, lightweight cable ensures easy installation, excellent electrical efficiency, and long-term durability in harsh outdoor environments, including wind, ice, moisture, and temperature extremes.
Construction
Technical Specifications
Quality Control
Application
Construction
4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable Constrution
Standard
• ASTM B-230 Aluminum Wire, 1350-H19 for Electrical Purposes.
• ASTM B-231 Aluminum Conductors, Concentric-Lay-Stranded.
• ASTM B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR).
• ASTM 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 600 Volts.
• ASTM B-231 Aluminum Conductors, Concentric-Lay-Stranded.
• ASTM B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR).
• ASTM 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 600 Volts.
Phase Conductor
Strand or Compressed 1350-H19 Series Aluminum Conductor.
Neutral (Messenger) Conductor
Bare AAAC messenger.
Insulation
Black Cross Linked Polyethylene (XLP) Insulation.
Key Features
1. Designed for 600V overhead utility service
2. Weather-resistant XLP insulation protects conductors from UV and moisture
3. AAAC messenger offers excellent strength, corrosion resistance, and flexibility
4. Ideal for residential, agricultural, and light commercial service drop installations
5. Lightweight and easy to install compared to copper systems
6. Complies with DOE and ICEA safety standards
2. Weather-resistant XLP insulation protects conductors from UV and moisture
3. AAAC messenger offers excellent strength, corrosion resistance, and flexibility
4. Ideal for residential, agricultural, and light commercial service drop installations
5. Lightweight and easy to install compared to copper systems
6. Complies with DOE and ICEA safety standards
Application
4/0 Lepas Aluminum Conductor Overhead Service Drop Cable has three conductors, with one of them being for neutral path, and two electrodes. 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. 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
4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable
4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable
| Rated voltage | V | 600 |
| 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
4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable
Raw Material Test
Raw materials for 4/0-4/0-4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable undergo rigorous incoming inspection. 1. Aluminum rods (1350-H19 grade) tested via optical emission spectroscopy for ≥99.5% purity, impurities (Fe, Si ≤0.1%); conductivity (>61% IACS), tensile strength (>170 MPa), and elongation verified per ASTM B-233. 2. Neutral messenger (ACSR/AAAC) components checked for galvanization thickness (Class A for ACSR) or alloy properties, breaking strength, and strand integrity per ASTM B-498, B-232, or B-399. 3. XLPE insulation compound evaluated for density, melt flow index, tensile strength (>8 MPa after aging), elongation (>200%), and carbon black content for UV stability per ASTM D-1248. 4. Visual and dimensional inspections identify surface defects or size inconsistencies. Supplier certificates of analysis cross-verified with in-house lab results.
Process inspection
4/0-4/0-4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable, in-line inspections ensure precision. 1. Stranding: Concentric stranding of #4/0 AWG phase conductors (19 wires) and neutral messenger monitored for uniform lay length, no birdcaging, and consistent tension. 2. Extrusion: XLPE insulation applied at controlled temperature/speed; online laser gauges verify nominal thickness (0.060 inches) and concentricity, with no voids or irregularities. 3. Cabling/twisting: Two insulated phases twisted around bare neutral at specified lay for balanced triplex structure without damaging insulation. 4. High-voltage spark testing scans the entire length for pinholes or faults. 5. Periodic sampling checks conductor resistance, insulation integrity, and visual surface quality. Deviations trigger immediate line adjustments, hold tags, and corrective actions per ISO quality protocols.
Finished Product
Final testing on completed 4/0-4/0-4/0 Lepas Aluminum Conductor Triplex Overhead Service Drop Cable confirms compliance. 1. Electrical: DC resistance per ASTM B-231 (max for #4/0 AWG); insulation resistance >1000 MΩ-km at 500V DC. 2. Voltage withstand: AC high-potential test at 3kV for 5 minutes, no breakdown or flashover. 3. Physical: Insulation thickness/eccentricity measured microscopically; tensile strength and elongation of conductors/insulation meet ASTM specs. 4. Ampacity validated (~315A at 90°C XLPE). 5. Visual/dimensional inspection ensures accurate printing ("Lepas", size, voltage, standards), no abrasions, and proper flexibility/coiling. 6. Sample mechanical bend and impact tests confirm durability. All data documented in detailed test reports; only compliant reels certified, labeled, and released for shipment.
Application
Primarily for overhead service drops from pole-mounted transformers to building weatherheads in residential, commercial, and light industrial settings. Ideal for higher-load single-phase 600V power supply in urban/rural areas, secondary pole-to-pole distribution, and reliable connections under demanding weather conditions.
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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