15kV Concentric Neutral Power Cable
The 15kV Concentric Neutral Power Cable is a premium medium-voltage underground distribution cable designed for reliable primary power delivery in distribution networks. It features a stranded copper or aluminum conductor, extruded semi-conducting conductor shield, TR-XLPE or EPR insulation, semi-conducting insulation shield, and helically applied bare copper concentric neutral wires, all protected by a tough sunlight-resistant LLDPE jacket. Available in 100% or 133% insulation levels with full or reduced neutral, this cable provides excellent electrical performance, moisture resistance, and mechanical protection. Suitable for direct burial or duct installations, the 15 kV Concentric Neutral Power Cable meets ICEA S-94-649, AEIC CS8, and related standards. It undergoes rigorous quality testing from raw materials to finished product, ensuring long-term reliability, low dielectric loss, and high resistance to water treeing in demanding underground environments.
- Standards ICEA S-94-649, AEIC CS8, ANSI/IEEE
- Voltage Rating 15 kV (100% or 133% insulation level)
- Insulation TR-XLPE or EPR (175 mils or 220 mils)
- Jacket Black LLDPE (sunlight resistant)
- Partial Discharge ≤5 pC at 200 V/mil
- Configuration Single conductor with concentric neutral
Construction
Technical Specifications
Quality Control
Application
Construction
15kV Concentric Neutral Power Cable
Key Product Features
Concentric neutral design for effective grounding and shielding
TR-XLPE or EPR insulation for superior dielectric strength
Excellent moisture and treeing resistance
Robust LLDPE jacket for mechanical protection and sunlight resistance
Suitable for direct burial and duct installations
TR-XLPE or EPR insulation for superior dielectric strength
Excellent moisture and treeing resistance
Robust LLDPE jacket for mechanical protection and sunlight resistance
Suitable for direct burial and duct installations
Conductor
Stranded copper or aluminum (1/0 AWG to 1000 kcmil typical)
Concentric Neutral
Bare copper wires (full or 1/3 neutral)
Operating Temperature
90°C continuous, 130°C emergency, 250°C short-circuit
Partial Discharge
≤5 pC at 200 V/mil
Insulation Shield
Semi-conducting XLPE/EPR
Technical Specifications
15kV Concentric Neutral Power Cable
Circular Type Concentric Cables
Flat Type Concentric Cables
| Size | Phase Conductor | XLPE Insulation | Neutral Conductor | XLPE Sheath | Approx.Weight | |||||
| Structure | O.D | Thickness | O.D | Structure | O.D | Thickness | O.D | CU | AL | |
| AWG | No./mm | mm | mm | mm | No./mm | mm | mm | mm | kg/km | kg/km |
| 2x8 | 7/1.23 | 3.69 | 1.14 | 5.97 | 25/0.65 | 7.27 | 1.14 | 9.84 | 202 | 97 |
| 2x10 | 7/0.98 | 2.94 | 1.14 | 5.22 | 25/0.52 | 6.26 | 1.14 | 8.83 | 141 | 74 |
| Size | Phase Conductor | XLPE Insulation | Inner Sheath |
Neutral Conductor |
XLPE Sheath | Approx.Weight | ||||
| Structure | O.D | Thickness | O.D | Thickness | Structure | Thickness | O.D | CU | AL | |
| AWG | No./mm | mm | mm | mm | mm | No./mm | mm | mm | kg/km | kg/km |
| 3x8 | 7/1.23 | 3.69 | 1.14 | 5.97 | 0.7 | 65/0.41 | 1.14 | 16.59x10.62 | 396 | 227 |
| 3x6 | 7/1.55 | 4.65 | 1.14 | 6.93 | 0.7 | 65/0.52 | 1.14 | 18.73x11.80 | 551 | 297 |
| 3x4 | 7/1.96 | 4.98 | 1.14 | 8.16 | 0.7 | 65/0.65 | 1.52 | 22.21x14.05 | 830 | 427 |
| 3x2 | 7/2.47 | 7.41 | 1.14 | 9.69 | 0.7 | 65/0.83 | 1.52 | 25.63x15.94 | 1233 | 587 |
Quality Control
15kV Concentric Neutral Power Cable
Raw Material Test
Raw Material Test is the critical first step in manufacturing the 15 kV Concentric Neutral Power Cable. Incoming copper or aluminum rods undergo detailed chemical composition analysis to confirm purity and alloy requirements. Mechanical testing verifies tensile strength, elongation, and hardness for the conductor. Insulation compounds (TR-XLPE or EPR) and semi-conducting materials are rigorously tested for thermal stability, dielectric strength, moisture resistance, and tree-retardant properties. Jacket materials are evaluated for UV stability and mechanical performance. Surface quality inspection and dimensional measurements detect any defects or inconsistencies. Metallographic examination confirms uniform grain structure. Only raw materials that fully pass every stringent criterion are approved for wire drawing, stranding, and extrusion in the production of the 15 kV Concentric Neutral Power Cable. This thorough incoming inspection guarantees consistent high electrical performance, mechanical strength, and long-term reliability in underground distribution applications.
Process inspection
Process Inspection during manufacturing of the 15 kV Concentric Neutral Power Cable maintains precise control at every stage. After conductor stranding, continuous monitoring verifies dimensional tolerances and surface quality. Triple extrusion of conductor shield, insulation, and insulation shield is carefully controlled for uniform thickness and clean interfaces. The concentric neutral application uses real-time tension control and lay length verification to ensure even helical winding of copper wires. LLDPE jacket extrusion is monitored for proper thickness and adhesion. Online diameter measurement systems and frequent visual checks prevent defects such as voids or uneven layers. Key process parameters including temperature and speed are strictly logged. Mid-process sampling includes partial discharge and electrical tests. Any deviation triggers immediate corrective action. These rigorous in-process controls safeguard the structural integrity and electrical properties of the 15 kV Concentric Neutral Power Cable, delivering a high-quality medium-voltage cable ready for underground service.
Finished Product
Finished Product testing ensures every reel of 15 kV Concentric Neutral Power Cable meets the highest quality standards. Comprehensive dimensional verification confirms overall diameter, insulation thickness, and concentric neutral coverage. DC resistance, high-voltage AC, and partial discharge tests validate electrical performance per ICEA and AEIC requirements. Mechanical tests measure tensile strength and elongation. Full visual and tactile inspections check for surface defects or jacket imperfections. All examinations follow ICEA S-94-649 and AEIC CS8 standards with detailed records for full traceability. Packaging and marking accuracy are also verified. Only the 15 kV Concentric Neutral Power Cable that successfully passes 100% of these final inspections receives approval for shipment. This rigorous final quality gate assures customers of outstanding dielectric strength, moisture resistance, and reliable performance in medium-voltage underground distribution applications.
Application
The 15 kV Concentric Neutral Power Cable is ideal for underground primary distribution networks, residential and commercial URD systems, direct burial feeder circuits, and substation connections requiring reliable medium-voltage power delivery with effective grounding.
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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Wires and Cables packaging (8)
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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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