4 Whelk Triplex Aluminum Conductor Triplex Overhead Service Drop Cable
4-4-4 Whelk Aluminum Conductor Triplex Overhead Service Drop Cable provides efficient overhead power transmission for utility-to-consumer connections. Constructed with solid or stranded 1350-H19 aluminum phase conductors (#4 AWG), black XLPE insulation for enhanced thermal, abrasion, and environmental protection, plus a bare ACSR neutral messenger (#4 AWG, 6/1), it ensures efficient conductivity, corrosion resistance, and structural support. Rated 600V phase-to-phase up to 90°C (XLPE), with ≈115A ampacity, it complies with ASTM B-230/B-231/B-232/B-399 and ICEA S-76-474. Its balanced, lightweight design simplifies installation while offering robust long-term performance against harsh outdoor elements like extreme temperatures, moisture, UV exposure, and mechanical stress in residential and light commercial applications.
Construction
Technical Specifications
Quality Control
Application
Construction
4 Whelk 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 ACSR messenger. Optional constructions include a messenger of AAC or 6201alloy
Insulation
Black Cross Linked Polyethylene (XLP) Insulation.
Key Features
1. ACSR messenger for superior tensile strength and mechanical support
2. Suitable for 120/240V single-phase service drops
3. XLP insulation for UV, moisture, and abrasion resistance
4. Fully compliant with ASTM and ICEA standards
5. Optimized for outdoor, long-term performance
2. Suitable for 120/240V single-phase service drops
3. XLP insulation for UV, moisture, and abrasion resistance
4. Fully compliant with ASTM and ICEA standards
5. Optimized for outdoor, long-term performance
Application
4 Whelk Triplex aluminum wire has three conductors, with one of them being for the neutral path, and two electrodes. 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 (XLP) insulated conductors. A bare messenger wire of this electrical cable is bonded closely to the two insulated aluminum conductors, which are individually insulated with black cross-linked polyethylene for protection.
Technical Specifications
4 Whelk Triplex Aluminum Conductor Triplex Overhead Service Drop Cable
4 Whelk 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 Whelk Triplex Aluminum Conductor Triplex Overhead Service Drop Cable
Raw Material Test
Incoming materials for 4-4-4 Whelk Aluminum Conductor Triplex Overhead Service Drop Cable pass strict verification. 1. 1350-H19 aluminum rods tested for purity via spectrometry, conductivity (>61% IACS), tensile, and elongation per ASTM B-230/B-233. 2. ACSR neutral components (steel core) verified for galvanization adherence, strand integrity, and tensile strength per ASTM B-232/B-498. 3. XLPE pellets checked for melt index, density, thermal aging, tensile/elongation after aging, and UV stabilizer content. 4. Supplier COAs reviewed with random sampling for defects. Rejected lots returned; approved materials tagged for full traceability.
Process inspection
In-process controls for 4-4-4 Whelk Aluminum Conductor Triplex Overhead Service Drop Cable ensure precision. 1. Stranding monitored for accurate lay, strand count, no overlaps in #4 AWG phases/neutral (6/1). 2. Insulation extrusion: XLPE thickness gauged continuously (nominal 0.045 inches), parameters logged for cross-linking. 3. Twisting: Triplex configuration verified for balance, lay length, and insulation protection. 4. Inline spark testing detects faults. 5. Regular sampling for resistance, visual defects, and dimensions. Non-conformances trigger immediate corrections and segregation.
Finished Product
Final QA on 4-4-4 Whelk Aluminum Conductor Triplex Overhead Service Drop Cable confirms standards compliance. 1. Conductor DC resistance/stranding per ASTM. 2. Insulation resistance/AC withstand voltage (no flashover). 3. Physical: Thickness, eccentricity, tensile/elongation measurements. 4. Ampacity validated (~115A). 5. Visual inspection for marking ("Whelk", specs), surface condition, and no damage. 6. Flexibility/coiling tests. Comprehensive reports generated; passing products certified, labeled, and approved for shipment.
Application
Used for overhead service entrances from utility transformers/poles to residential/light commercial weatherheads. Suitable for single-phase 600V distribution in rural/urban projects, pole-to-pole secondary lines, and reliable power delivery in challenging climatic and environmental conditions.
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)
Wires and Cables packaging (4)
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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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