Shenghua 21/35kV XLPE Power Cable | Earthquake & Corrosion-Resistant Grid Backbone
| Attribute |
Value |
| 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 |
Shenghua XLPE Insulated Power Cable: The Unbreakable Backbone of Critical Infrastructure
"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."
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.
Material Science Breakthrough: Beyond Basic Durability
-
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 <15% (IEC 61034), critical for offshore oil platforms
- Chemical Immunity: XLPE neutralizes H₂S and salt spray, extending lifespan to 50 years in petrochemical zones
Data-Driven Resilience: Where Specifications Meet Survival
| 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 |
Shenghua's "Zero-Failure" Ecosystem: From Lab to Field
-
Manufacturing Resilience:
- ISO 9001/14001 factories with AI-driven defect detection (99.998% consistency)
- 15,000 km/month capacity to restock disaster-stricken grids within 72hrs
-
Global Case Library:
- Indonesia Surabaya Smart Grid (2023-now): Zero faults during monsoon flooding
- Zambian Copperbelt Mine: Withstood 3-ton rockfall impacts; maintenance costs ↓45%
XLPE Insulated Power Cable 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.
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
XLPE Insulated Power Cable 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
XLPE Insulated Power Cable 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
XLPE Insulated Power Cable 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 |
