10kV 35kV YJV22 High Voltage Copper Cable XLPE Insulated Steel Tape Armored Power Cable
YJV22 10kV 35kV High Voltage Copper Cable, XLPE Insulated, Steel Tape Armored, Power Cable
Structural Description
Copper Conductor: Compactly stranded circular structure, oxygen content ≤0.02%, conductivity not less than 97% IACS.
Nominal Cross-Section: 10kV commonly 25~630mm²; 35kV commonly 50~400mm² (single-core or three-core).
Conductor Shielding: Extruded semi-conductive layer, uniform electric field, preventing void discharge.
XLPE Insulation: Cross-linked polyethylene, high material purity.
10kV Rated Voltage: 8.7/15kV, nominal insulation thickness 4.5mm
35kV Rated Voltage: 26/35kV, nominal insulation thickness 10.5mm
Insulation Shielding: Peelable or non-peelable semi-conductive layer, grounded together with the metallic shield.
Metallic Shielding: Copper tape or copper wire wrapping, cross-section meeting short-circuit current capacity requirements.
Filling and Wrapping: Polypropylene filler rope, wrapped tightly to ensure a round cable core.
Inner Sheath: Polyvinyl chloride (PVC) inner lining, uniform thickness.
Armor Layer: Double-layer galvanized steel strip, intermittently wrapped, resistant to mechanical stress.
10kV: Suitable for direct burial, conduit, and cable trench installations.
35kV: It is recommended to check the installation location (not suitable for heavy pulling or high impact applications).
Outer Sheath: Polyvinyl chloride (PVC), black, flame retardant rating can be provided as Class C or Class B upon request.
Specification
| Nominal Cross-Section/mm² | Insulation Thickness/mm | Sheath Thickness/mm | Approximate overall Diameter/mm | Approximate Weight kg/km - Copper | Approximate Weight kg/km - Aluminum | DC Resistance Ω/km - Copper | DC Resistance Ω/km - Aluminum |
|---|---|---|---|---|---|---|---|
| 3×1.5 | 0.7 | 1.8 | 10.8 | 116 | 89 | 12.1 | / |
| 3×2.5 | 0.7 | 1.8 | 11.7 | 152 | 105 | 7.41 | 12.1 |
| 3×4 | 0.7 | 1.8 | 12.7 | 201 | 128 | 4.61 | 7.41 |
| 3×6 | 0.7 | 1.8 | 13.7 | 267 | 156 | 3.08 | 4.61 |
| 3×10 | 0.7 | 1.8 | 16.2 | 436 | 225 | 1.83 | 3.08 |
| 3×16 | 0.7 | 1.8 | 18.2 | 640 | 304 | 1.15 | 1.91 |
| 3×25 | 0.9 | 1.8 | 21.4 | 936 | 412 | 0.727 | 1.2 |
| 3×35 | 0.9 | 1.8 | 23.6 | 1262 | 527 | 0.524 | 0.868 |
| 3×50 | 1 | 1.8 | 26.6 | 1686 | 682 | 0.387 | 0.641 |
| 3×70 | 1.1 | 1.9 | 31.4 | 2431 | 944 | 0.268 | 0.443 |
| 3×95 | 1.1 | 2.0 | 34.9 | 3180 | 1219 | 0.193 | 0.32 |
| 3×120 | 1.2 | 2.2 | 38.2 | 4083 | 1543 | 0.153 | 0.253 |
| 3×150 | 1.4 | 2.3 | 43.2 | 5061 | 1911 | 0.124 | 0.206 |
| 3×185 | 1.6 | 2.5 | 48.3 | 6230 | 2357 | 0.0991 | 0.164 |
| 3×240 | 1.7 | 2.6 | 53.7 | 7968 | 2979 | 0.0754 | 0.125 |
| 3×300 | 1.8 | 2.8 | 58.8 | 9911 | 3665 | 0.0601 | 0.1 |
| 3×400 | 2 | 3.1 | 67.3 | 12427 | 4581 | 0.047 | 0.0778 |
| 3×500 | 2.2 | 3.3 | 75.6 | 16515 | 6122 | 0.0366 | 0.0605 |
| 3×630 | 2.4 | 3.6 | 83.7 | 22099 | 8090 | 0.0283 | 0.0469 |
Features
The steel-strapped insulation can directly withstand short-term impacts from road rollers or excavators, making it suitable for direct burial under municipal roads.
XLPE insulation has a higher temperature rating than PVC, allowing for greater current carrying capacity.
The copper conductor is oxidation-resistant and creep-resistant, ensuring reliable crimping connections.
The outer sheath can be printed with meter readings, voltage ratings, and manufacturer information for easy on-site identification.
Application
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10kV power supply lines: residential power distribution, industrial parks, substation outgoing lines, and tunnel installations.
35kV power supply lines: small substation interconnection lines, main power supply for factories, and surface power supply for mines.
Laying methods: direct burial, cable trenches, conduits, and cable trays.
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FAQ
1. What does “22” in YJV22 mean?
Double steel tape armor + PVC outer sheath. Suitable for direct burial, trenches, and ducts. Not for vertical or tensile applications.
2. Can single-core YJV22 be used with steel armor?
No. Single-core with steel armor causes eddy current heating. Use non-magnetic armor (YJV62) or 3-core design.
3. How to tell 10kV from 35kV YJV22?
Insulation thickness: 10kV → 4.5mm, 35kV → 10.5mm. Printed voltage on sheath.
4. Is YJV22 waterproof for underwater use?
No. PVC sheath and steel tape are not fully watertight. Use lead-sheathed or laminated aluminum sheath cable (e.g., YJLW02) for submerged installation.
5. Minimum bending radius?
3-core: 12×OD (outer diameter). Single-core: 15×OD. Do not bend sharply.
6. Why choose copper over aluminum?
Higher conductivity (97% IACS), better creep resistance, reliable compression joints. Higher cost but longer service life.
7. Can it be flame retardant?
Yes – add “ZC” or “ZB” according to GB/T 19666. Standard PVC sheath is not low-smoke halogen-free (LSZH).
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