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Concentric neutral for URD. Integrates neutral with core. Simplifies installation maintains fault return path.
Application
CSA C68.5 / ANSI/ICEA S-94-649 concentric neutral cable (5kV to 46kV) for primary underground residential distribution (URD) in single-phase or three-phase networks. Triple extruded TRXLPE insulation. 1/3 neutral design. Direct burial or underground duct.
Core Strengths
Separate grounding conductors increase cost and complexity. Our concentric neutral integrates neutral with core, simplifying installation while maintaining fault return path.Factory direct.
Standard
IEC60502, SANS 1339, BS 6622, AS/NZS1429.1, NFC 33226, CSA C 68.3, ICEA S 93-639 , ICEA S 94-649
Construction
☉〉 Conductor: Stranded copper (class 2)
☉〉 Conductor screen: Semiconductive layer
☉〉 Insulation: XLPE (cross-linked polyethylene)
☉〉 Insulation screen: Semiconductive layer
☉〉 Copper wire screen: Serves as both shield and concentric neutral
☉〉 Outer sheath: PVC or PE
Features
☉〉 Rated voltage: 5kV to 46kV (CSA/ICEA standard for URD applications)
☉〉 XLPE insulation – 90°C continuous, 250°C short‑circuit
☉〉 Integrated concentric neutral – combines shielding, grounding, and neutral in one layer
☉〉 1/3 neutral design (typical) – simplifies installation, reduces cable cost
☉〉 Suitable for primary underground residential distribution (URD) – single‑phase or three‑phase
☉〉 Installation: direct burial or underground duct in wet/dry locations
☉〉 100% factory tested to CSA C68.5 / ICEA S‑94‑649
Product Data Sheet
| Conductor Construction | ||||
| Conductor Size | Min Stranding No. | Nominal Diameter | Max. D.C. Resistance at 20℃ | |
| AWG/ kcmil | mm2 | mm | mm | Ω/KM |
| 3 | 26.7 | 6 | 6.05 | 0.68509 |
| 2 | 33.6 | 6 | 6.81 | 0.54357 |
| 1 | 42.4 | 7 | 7.59 | 0.43099 |
| 1/0 | 53.5 | 7 | 8.53 | 0.34094 |
| 2/0 | 67.4 | 12 | 9.55 | 0.27082 |
| 3/0 | 85 | 15 | 10.7 | 0.21453 |
| 4/0 | 107 | 17 | 12.1 | 0.16854 |
| 250 | 127 | 18 | 13.2 | 0.14409 |
| 300 | 152 | 18 | 14.5 | 0.12029 |
| 350 | 177 | 24 | 15.6 | 0.10292 |
| 400 | 203 | 24 | 16.7 | 0.08909 |
| 450 | 228 | 30 | 17.8 | 0.07912 |
| 500 | 253 | 30 | 18.7 | 0.0714 |
| 550 | 279 | 34 | 19.7 | 0.06561 |
| 600 | 304 | 34 | 20.7 | 0.06015 |
| 700 | 355 | 34 | 22.3 | 0.05114 |
| 750 | 380 | 53 | 23.1 | 0.0476 |
| 800 | 405 | 53 | 23.8 | 0.04471 |
| 900 | 456 | 53 | 25.4 | 0.03956 |
| 1000 | 507 | 53 | 26.9 | 0.0357 |
| Insulation, Metallic shield Dimension | |||||
| Rated Circuit Voltage, Phase-to-Phase | Conductor Size | XLPE/TRXLPE Insulation Nominal Thickness | Metal Screen | ||
| 100 Percent Level | 133 Percent Level | 173 Percent Level | Copper Tape | ||
| V | AWG/kcmil | mm | mm | mm | mm |
| 2001-5000 | 8-1000 | 2.3 | 2.3 | 3.6 | 0.06 |
| 1001-3000 | 3.6 | 3.6 | 3.6 | 0.06 | |
| 5001-8000 | 6-1000 | 2.9 | 3.6 | 4.4 | 0.06 |
| 1001-3000 | 4.4 | 4.4 | 5.6 | 0.06 | |
| 8001-15000 | 2-1000 | 4.4 | 5.6 | 6.6 | 0.06 |
| 1001-3000 | 5.6 | 5.6 | 6.6 | 0.06 | |
| 15001-25000 | 1-3000 | 6.6 | 8.1 | 10.7 | 0.06 |
| 25001-28000 | 1-3000 | 7.1 | 8.8 | 11.3 | 0.06 |
| 28001-35000 | 1/0-3000 | 8.8 | 10.7 | 14.7 | 0.06 |
| 35001-46000 | 4/0-3000 | 11.3 | 14.7 | 19.1 | 0.06 |
| Concentric Neutral Wire Size | |||
| AWG Size | Nominal Diameter | Nominal Area | |
| mils | mm | (kcmil) | |
| 16 | 50.8 | 1.29 | 2.58 |
| 14 | 64.1 | 1.63 | 4.11 |
| 12 | 80.8 | 2.05 | 6.53 |
| 10 | 101.9 | 2.59 | 10.38 |
| 9 | 114.4 | 2.91 | 13.09 |
| 8 | 128.5 | 3.26 | 16.51 |
| Full Neutral Concentric Copper Conductor | ||||||
| Conductor Size AWG/kcmil | Concentric Conductor Minimum Number of Wires | |||||
| Copper | Aluminum | 16AWG | 14AWG | 12AWG | 10AWG | 9AWG |
| … | 4 | 10* | 6 | … | … | … |
| 4 | 2 | 16* | 10 | … | … | … |
| 3 | 1 | 20* | 13 | … | … | … |
| 2 | 1/0 | 26* | 16 | 10* | … | … |
| 1 | 2/0 | … | 20* | 13 | … | … |
| 1/0 | 3/0 | … | 25* | 16 | 10* | … |
| 2/0 | 4/0 | … | 32* | 20* | 13 | 10* |
| 3/0 | 250 | … | … | 25* | 16 | 13* |
| 4/0 | 350 | … | … | 32* | 20* | 16 |
| One-third Neutral Concentric Copper Conductor | |||||||
| Conductor Size | Concentric Conductor Minimum Number of Wires | ||||||
| AWG/kcmil | |||||||
| Copper | Aluminum | 16AWG | 14AWG | 12AWG | 10AWG | 9AWG | 8AWG |
| 2 | 1/0 | 9 | 6 | … | … | … | … |
| 1 | 2/0 | 11 | 7 | … | … | … | … |
| 1/0 | 3/0 | 14 | 9 | 6* | … | … | … |
| 4/0 | 17 | 11 | 7* | … | … | … | |
| 2/0 | 18 | 11 | 7* | … | … | … | |
| 250 | 20 | 13 | 8* | … | … | … | |
| 3/0 | 22 | 14 | 9* | 6* | … | … | |
| 4/0 | 350 | 28* | 18 | 11* | 7* | 6* | … |
| 250 | … | 21 | 13* | 9* | 7* | … | |
| 500 | … | 25* | 16 | 10* | 8* | 7* | |
| 350 | … | 29* | 18 | 12* | 9* | 8* | |
| 600 | … | 30* | 19 | 12* | 10* | 8* | |
| 750 | … | … | 24 | 15* | 12* | 10* | |
| 500 | … | … | 26* | 17 | 13* | 10* | |
| 600 | 1000 | … | … | 31* | 20 | 16* | 13* |
| 650 | … | … | 34* | 21 | 17* | 14* | |
| 750 | 1250 | … | … | … | 25* | 20 | 16* |
| 1500 | … | … | … | 30* | 24 | 19* | |
| 1000 | … | … | … | 32* | 26* | 21 | |
| Thickness of bedding and size of armor wire | ||
| Calculated Dia. of cable under bedding | Min. thickness of bedding | Nominal size of armor wire |
| mm | mm | mm |
| 0-19.05 | 1.14 | 2.11 |
| 19.08-25.40 | 1.65 | 2.77 |
| 25.43-43.18 | 2.03 | 3.4 |
| 43.21-63.50 | 2.03 | 4.19 |
| 63.53 & larger | 2.41 | 5.16 |
Images
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