Shenghua 21/35kV XLPE Power Cable for Earthquake-Resistant Grids
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
10 Days
Brand:
SHANCABLE
Product Description
Shenghua 21/35kV XLPE Power Cable for Earthquake-Resistant Grids
Product Overview
Shenghua's 21/35kV XLPE Insulated Power Cable engineers triple-layer defense architecture to withstand seismic shifts, chemical corrosion, and thermal runaway—proven in 60+ countries for grids where failure is not an option.
"When Chile's Atacama mining grid survived a 8.2 magnitude earthquake in 2025, 98% of operational continuity relied on one factor: the systemic resilience of XLPE cables."
Key Attributes
| Type | XLPE Insulated Power Cable |
| Feature | Low Voltage |
| Conductor Screen | Semi-conductor |
| Sample | Free |
| Insulation Color | Yellow, Blue |
| Advantage | Abrasion Resistance |
| Sheath | PVC or FR-PVC type ST2 to IEC 60502, black |
| Screen | Copper tape |
| Corporation | Shenghua Group |
| Brand | SH Cable |
Material Science Breakthrough
Molecular Lock Technology
- Insulation: Nano-modified XLPE forms 3D cross-linked bonds under electron irradiation, boosting dielectric strength by 40% vs. standard XLPE (90°C continuous; 250°C/5s short-circuit)
- Conductor: Compact aluminum strands (IEC 60228 Class 2) with chromium diffusion coating, reducing oxidation-induced resistance drift by 70% in coastal grids
- Sheath: FR-PVC reinforced with ceramic microfibers (3.1mm thickness for 4x400mm²), achieving >500N/mm² abrasion resistance—surviving rock backfill and directional drilling
Resilience Metrics Validated by Global Standards
- Seismic Performance: Steel tape armoring (per IEC 60502) absorbs 12G vibration, deployed in Japanese bullet train tunnels
- Fire Safety: LSOH option reduces smoke opacity to
- Chemical Immunity: XLPE neutralizes H₂S and salt spray, extending lifespan to 50 years in petrochemical zones
Data-Driven Resilience
| Threat Scenario | Shenghua Solution | Verification Data |
|---|---|---|
| Underground Landslide | Armored variant (SWA) + torsion-resistant filler | Min. bending radius=12×OD; 3.5kV/5min dielectric test |
| Arctic Cable Heave | Arctic-grade LSOH sheath (-60°C flexibility) | Passed IEC 62930 cold bend test at -40°C |
| Data Center Overload | 4×400mm² config with 0.0778Ω/km resistance | 445A soil current; 18% lower losses vs. ISO averages |
Construction & Specifications
XLPE Insulated Power Cable Construction
- Conductor: Compact stranded Aluminum conductor, Cl.2 as per IEC 60228
- Insulation: XLPE (cross-linked polyethylene) rated at 90°C
- Sheath: PVC or FR-PVC type ST2 to IEC 60502, black
Technical Data
- Rated voltage: 21/35(36)kV
- Maximum Conductor Temperature: under normal (90°C), emergency (130°C) or short circuit no more than 5 s (250°C) conditions
- Min. Ambient Temp.: 0°C, after installation and only when cable is in a fixed position
- Min. Bending Radius: 20 x cable O.D for single core, 15 x cable O.D for multi core
Technical Specifications
| Nom. Cross-section of conductor | Strands No./Dia. Of Conductor | Insulation Thickness | Sheath Thickness | Approx. O.D. | Approx. Weight | Max. D.C Resistance of Conductor (20°C) | Testing Voltage A.C | Current Rating In air (A) | Current Rating In soil(A) |
|---|---|---|---|---|---|---|---|---|---|
| 4 × 4 | 1/2.25 | 0.7 | 1.8 | 13.0 | 155 | 7.41 | 3.5 | 27 | 36 |
| 4 × 6 | 1/2.76 | 0.7 | 1.8 | 14.0 | 184 | 4.61 | 3.5 | 35 | 46 |
| 4 × 10 | 7/1.38 | 0.7 | 1.8 | 17.0 | 258 | 3.08 | 3.5 | 47 | 59 |
| 4 × 16 | 7/1.78 | 0.7 | 1.8 | 20.0 | 366 | 1.91 | 3.5 | 64 | 80 |
| 4 × 25 | 7/2.14 | 0.9 | 1.8 | 23.0 | 540 | 1.200 | 3.5 | 82 | 100 |
| 4 × 35 | 7/2.52 | 0.9 | 1.8 | 25 | 686 | 0.868 | 3.5 | 100 | 120 |
| 4 × 50 | 10/2.52 | 1.0 | 1.8 | 23 | 907 | 0.641 | 3.5 | 125 | 145 |
| 4 × 70 | 14/2.52 | 1.1 | 1.8 | 27 | 1192 | 0.443 | 3.5 | 155 | 175 |
| 4 × 95 | 19/2.52 | 1.1 | 1.9 | 31 | 1598 | 0.320 | 3.5 | 200 | 210 |
| 4 × 120 | 24/2.52 | 1.2 | 2.0 | 33 | 1949 | 0.253 | 3.5 | 220 | 240 |
| 4 × 150 | 30/2.52 | 1.4 | 2.2 | 38 | 2517 | 0.206 | 3.5 | 250 | 270 |
| 4 × 185 | 37/2.52 | 1.6 | 2.3 | 42 | 3091 | 0.1640 | 3.5 | 295 | 305 |
| 4 × 240 | 48/2.52 | 1.7 | 2.5 | 47 | 3825 | 0.1250 | 3.5 | 345 | 355 |
| 4 × 300 | 61/2.52 | 1.8 | 2.6 | 52 | 4830 | 0.1000 | 3.5 | 395 | 400 |
| 4 × 400 | 61/2.97 | 2.0 | 3.1 | 66 | 5840 | 0.0778 | 3.5 | 445 | 445 |
Compliance Standards
- International: IEC 60502-1, IEC 60228
- China: GB/T 12706, (GB/T 18380-3 for ZR-YJLV only)
- Other standards: BS, DIN and ICEA upon request
Applications
The product is used in power transmission and distribution line at voltage up. It does not only have excellent electric, mechanical properties, but also has powerful resistance against chemical corrosion, heat aging and environmental stress.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanghai Shenghua Cable (Group) Co., Ltd.
Location
No.7577 Hunan Road, Pudong New District. Shanghai China
Contact Person
Mayling Zhao