Overview
| Model NO. | YJV22 STA，XLPE Insulated Steel Tape Armored | Application | Solar PV Substation、Industrial Infrastructure、Underground Burial |
| Voltage | Low/Medium Voltage | Conductor | Copper |
| Insulation Material | XLPE | Jacket | PVC |
| Material Shape | Round | Temperature | 10°C-90°C |
| Certification | ISO, CCC, CE, RoHS, VDE | Conductor Type | Class2 |
| Brand | ZhongYI | Voltage Type | 0.6/1kV, 26/35kV |
| Company Name | ZHONGYI Cable Co., Ltd | CORE | 1,2,3,4,5，3+1,3+2,4+1 Tailor-made |
| Transport Package | Plastic Packaging and Cardboard Boxes | Specification | 1.5-400mm² |
| Origin | HEBEI China | Color | Black |
YJV22 STA Cable Core Technical Specifications & Data Sheet
| No. / Cross Section (mm²) | Conductor Diameter (mm) | Average Insulation Thickness (mm) | Layer of Armor | Thickness of Armor (mm) | Outer Sheath Thickness (mm) | Rated Voltage (U₀/U) | Ref. Outer Diameter (mm) | Approx. Weight (kg/km) |
|---|---|---|---|---|---|---|---|---|
| 2×0.75 | 0.96 | 0.7 | 2 | 0.2 | 1.8 | 0.6/1 kV | 13.5 | 227.32 |
| 3×16+2×10 | 4.9 | 0.7 | 2 | 0.2 | 1.8 | 0.6/1 kV | 23.4 | 1058.33 |
| 2×10 | 3.8 | 2.0 | 2 | 0.2 | 1.8 | 1.8/3 kV | 23.18 | 675.71 |
| 4×50+1×25 | 7.6 | 2.0 | 2 | 0.5 | 2.2 | 1.8/3 kV | 40.35 | 2922.72 |
| 3×25 | 5.7 | 4.5 | 2 | 0.5-0.8 | 2.5 | 8.7/15 kV | 49.64 | 3234.70 |
| 3×150 | 13.55 | 4.5 | 2 | 0.5-0.8 | 3.2 | 8.7/15 kV | 68.6 | 8029.76 |
| 3×50 | 7.6 | 10.5 | 2 | 0.8 | 3.7 | 26/35 kV | 86.19 | 8510.50 |
| 3×300 | 19.4 | 10.5 | 2 | 0.8 | 4.7 | 26/35 kV | 114.68 | 19258.97 |
Features
YJV22 STA Cable is a highly cost-effective, heavy-duty armored power cable designed for primary underground electricity distribution networks.
YJV vs YJV22 STA vs YJV32 Core Technical Comparison
| Technical Feature | YJV Cable (Standard Type) | YJV22 Cable (Steel Tape Armored) | YJV32 Cable (Steel Wire Armored) |
|---|---|---|---|
| Full Name | XLPE Insulated PVC Sheathed Copper Power Cable | XLPE Insulated Steel Tape Armored PVC Sheathed Copper Cable | XLPE Insulated Steel Wire Armored PVC Sheathed Copper Cable |
| Armoring Material | None (Unarmored) | STA (Double Steel Tape Armor) | SWA (Galvanized Steel Wire Armor) |
| Crush & Radial Resistance | Low (Requires conduit/pipe protection if under pressure) | Excellent (Safely withstands heavy external crush and soil pressure) | Moderate to High (Resists lateral crushing and rock impact) |
| Tensile Strength (Pulling Force) | Standard (Cannot handle continuous vertical longitudinal stress) | Low (Metallic tapes may slip or unwrap under high tension) | Superior (Withstands extreme longitudinal pulling forces and heavy drops) |
| Bending Radius & Flexibility | Smallest (Highly flexible, easiest to install in tight raceways) | Larger (Relatively stiff due to overlapping continuous steel tapes) | Largest (Stiftest configuration due to full perimeter heavy steel wires) |
| Primary Installation | Indoor cable trays, aerial brackets, concrete ducts, solar PV frames | Direct underground burial, areas prone to ground shifting or external impact | Vertical shafts, deep mining wells, high-drop towers, underwater/marsh burial |
Heavy Mechanical Shield: Overlapping double steel tape armor (STA) provides maximum radial crush resistance against sharp stones, compacted backfill soil, and underground mechanical hazards.
Elite Thermal Integrity: The cross-linked polyethylene (XLPE) core allows continuous normal loading at temperatures up to 90°C and temporary short-circuit survival up to 250°C.
High Conductivity & Low Loss: Pure oxygen-free copper conductors ensure minimal voltage drop, exceptional line stability, and maximum transmission capacity over long distances.
Soil & Chemical Immunity: The premium PVC outer sheath is formulated to resist moisture infiltration, underground acids, soil alkalis, and industrial oil tracking.
Application
Direct Underground Burial: The industry standard for main grid lines laid directly into soil trenches without the need for expensive structural conduit piping.
Heavy Industrial Power Hubs: Primary distribution networks feeding power-hungry manufacturing centers, deep-level mining sites, and petrochemical yards.
Renewable Energy Grid: Connecting utility-scale ground-mounted inverter arrays to main step-up transformers in wind and solar PV power farms.
Infrastructure & Civil Engineering: Main electrical feeders installed in commercial underground cable tunnels, utility ducts, and urban power transmission pathways.
Certification
Factory
FAQ
1. What are the metallurgical advantages of the copper conductors in your YJV22 cable?
Core Conductivity Advantage:
Our YJV22 power cable utilizes 99.99% pure Oxygen-Free Copper (OFC) grouped into Class 2 stranded compacted circular or shaped conductors. Compared to cheaper copper-clad aluminum (CCA) or standard recycled copper, our premium electrolytic copper ensures minimum electrical resistance, zero localized hot-spots, and lower voltage drops over long distances. This maximizes transmission efficiency for high-capacity industrial power hubs.
2. Why is the Double Steel Tape Armor (STA) configuration critical for direct underground burial?
Mechanical Crust Protection:
The ’22’ in the YJV22 designation signifies a robust Double Steel Tape Armored (STA) matrix layered directly beneath the protective outer sheath. This overlapping double-wrap steel configuration provides exceptional radial compressive resistance against crushing forces. It safely shields the inner XLPE insulation from sharp stones, heavy backfill soil, and underground mechanical impact, making it perfect for direct-burial installations without requiring rigid conduits.
3. What voltage ranges does the YJV22 cable family support for modern utility power grids?
Voltage Range & Thermal Stability:
Our YJV22 product family spans a broad voltage matrix from low-voltage main supply lines (0.6/1kV) up to medium-voltage transmission ratings, including 8.7/15kV and 26/35kV networks. Insulated with premium, super-clean Cross-linked Polyethylene (XLPE), the cores seamlessly support a continuous maximum conductor operating temperature of 90°C. In the event of emergency grid short-circuits, it safely withstands thermal spikes up to 250°C.
4. How does the YJV22 armor cable resist degradation in aggressive soil environments?
Soil Immunity & Moisture Barrier:
Engineered for decades of maintenance-free service, the heavy-duty PVC outer jacket exhibits excellent chemical immunity against soil alkalinity, active organic acids, and industrial moisture infiltration. This dense outer compound acts as a flawless seal, preventing destructive water treeing degradation within the inner XLPE layers, ensuring a safe operational lifespan exceeding 30 years in damp grid trenches.
5. What are the manufacturing standards and wholesale packaging options for large-scale B2B orders?
Industrial Logistics & Global Compliance:
ZHONGYI CABLE manufactures YJV22 STA cables in strict accordance with international standards, including IEC 60502-1, IEC 60502-2, and GB/T 12706 frameworks. To prevent cross-sectional deformities and armor displacement during ocean shipping, bulk orders are packed on heavy-duty steel-wooden drums or reinforced steel reels, complete with complete Type Test Reports and Routine Factory Test Certificates.
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