8.7/15kV Steel Tape Armored Medium-Voltage XLPE Power Cable
Core Structure: Solid copper conductor + double semi-conductive shielding + thick XLPE high-voltage insulation + copper tape metal shield + PVC inner bedding + double steel tape armor + anti-corrosion PVC outer sheath.
Core Performance: Anti-partial discharge high-voltage insulation, anti-electromagnetic interference, anti-extrusion & anti-rodent bite, direct underground burial capable.
Application Scenarios: Urban 10kV power grid, industrial high-voltage incoming lines, photovoltaic/wind booster stations, municipal tunnel pipe corridors.
Engineering Merit: Integrated armor structure saves pipeline construction cost, copper tape shielding avoids interference with adjacent signal cables.
Compliance: Fully meets GB/T 12706 national mandatory standard for medium-voltage armored power cables.
Product Introduction
This 3-core armored medium-voltage power cable (YJV22 8.7/15kV 3×35) belongs to the 10kV distribution cable series, designed for outdoor buried, cable trench and tunnel medium-voltage power transmission. It adopts solid oxygen-free copper conductor, triple-layer semi-conductive shielding + cross-linked polyethylene (XLPE) high-voltage insulation, copper tape metal shielding, double galvanized steel tape armor and anti-corrosion PVC outer sheath. The integrated high-insulation, full-shield and mechanical armor structure resists partial discharge, induced electromagnetic interference, underground extrusion, impact and rodent gnawing, widely used in urban power grids, industrial park high-voltage incoming lines, new energy booster stations and substation distribution circuits.
product key technologies
- Solid high-purity oxygen-free copper conductor (3 cores × 35mm²)
- Extruded semi-conductive inner conductor shield
- Thickened XLPE cross-linked high-voltage insulation layer
- Extruded semi-conductive insulation outer shield
- Overlapped copper tape metal shielding layer
- Elastic filling materials + binding wrapping tape
- PVC inner cushion bedding sheath
- Double-layer galvanized steel tape armor layer
- Black wear-resistant anti-corrosion PVC outer protective sheath
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- Solid Copper Conductor & Inner Semi-Conductive Shield:High-density oxygen-free copper provides stable large-current transmission for 10kV medium-voltage loads; the extruded semi-conductive inner shield smooths the conductor surface electric field, eliminates tip discharge and partial discharge risks under high voltage.
- XLPE High-Voltage Insulation Layer:Cross-linked polyethylene with ultra-high dielectric strength, long-term allowable working temperature up to 90℃, withstands 42kV power frequency withstand voltage test. It features low dielectric loss, anti-aging and anti-water tree performance, the core insulation guarantee for 10kV power transmission.
- Outer Semi-Conductive Shield + Copper Tape Metal Shield:Dual shielding system: outer semi-conductive layer realizes seamless contact between insulation and metal shield; fully overlapped copper tape blocks high-voltage induced electric field, eliminates electromagnetic interference to surrounding control cables, and provides short-circuit grounding channel during insulation breakdown.
- Fillers & Wrapping Tape:Elastic fillers round out the cable body and buffer external mechanical extrusion during buried laying; wrapping tape fixes core groups to prevent dislocation deformation.
- PVC Inner Bedding Sheath:Isolates internal shielding core group and metal steel tape armor, avoids scratch damage to copper shielding layer and electrochemical corrosion between copper and steel.
- Double Galvanized Steel Tape Armor Layer:Core mechanical protection structure, resists underground rock extrusion, construction impact, rat and termite gnawing, meets national standard for direct burial of medium-voltage cables without heavy steel conduit protection.
- Anti-Corrosion PVC Outer Sheath:Thickened black PVC outer layer isolates armor from underground moisture, weak acid/alkali soil and dust, prevents steel tape rust and extends service life in buried environments.
Key Advantages
- High-Voltage Anti-Partial Discharge System: Triple semi-conductive shielding + thick XLPE insulation effectively suppress partial discharge, long service life under continuous 10kV operating voltage.
- Direct Underground Burial Available: Double steel tape armor realizes direct soil laying, greatly reducing pipeline engineering cost for medium-voltage power grid projects.
- High Ampacity & Short-Circuit Resistance: 90℃ long-term operating temperature, withstands 250℃ short-circuit high temperature within 5s, suitable for peak load fluctuation of power grid and new energy stations.
- Full Metal Anti-Interference Shield: Copper tape continuous shielding eliminates high-voltage induced interference, can be laid alongside weak signal control cables without signal distortion.
- All-Weather Harsh Environment Adaptability: Resists extrusion, impact, rodent bite, moisture and weak soil corrosion, applicable for cable trench, tunnel, underground direct burial and indoor substation laying.
- Full National Standard Compliance: Strictly produced per GB/T 12706 medium-voltage power cable mandatory standards, passed type test for power grid bidding access.
What Are the Product Application Scenarios?
- Urban 10kV overhead line buried transition cables and urban distribution network trunk lines.
- High-voltage incoming power circuits of industrial parks, chemical plants, metallurgical enterprises and commercial complexes.
- Booster station medium-voltage transmission cables for photovoltaic power stations, wind farms and energy storage projects.
- 10kV power distribution wiring in municipal comprehensive pipe corridors, highway tunnels and underground substations.
- Temporary medium-voltage power supply lines for large infrastructure construction projects.
Why Choose Shaanxi Jinshenghong Cable
Full set of medium-voltage type test equipment, each batch passes partial discharge, power frequency withstand voltage, steel tape compression and thermal aging test before delivery, eligible for national power grid bidding.
Adopts high-purity oxygen-free copper, ultra-clean high-voltage grade XLPE raw materials and thickened seamless copper tape shielding, no recycled inferior raw materials.
Customizable modified versions: ZA/ZB/ZC flame retardant, NH fire-resistant, WDZ low smoke zero halogen outer sheath for fire-critical tunnel and underground pipe corridor projects.
Complete cross-section series of 10kV YJV22 cables, sufficient stock and stable global logistics to support fast delivery for power grid and new energy engineering contractors.
Professional medium-voltage cable technical team provides buried anti-corrosion, anti-interference laying scheme consultation for power distribution projects.
Thoughtful service - worry free after-sales service
Global logistics
Provide global express and sea freight services, door-to-door, worry free and convenient.
Explanation: Our professional engineering team provides selection and technical support to answer your questions and clarify any doubts.
Provide comprehensive quality assurance and after-sales policies to ensure worry free procurement for you.
FAQ
Q1: What does YJV22 8.7/15kV stand for?
A: YJ = XLPE cross-linked insulation; V = PVC inner bedding; 22 = double galvanized steel tape armor + PVC outer sheath; 8.7kV is phase-to-ground rated voltage, 15kV is phase-to-phase rated voltage, belonging to standard 10kV distribution cable.
Q2: What is the difference between medium-voltage YJV22 and low-voltage YJV22?
A: Medium-voltage 8.7/15kV cables add inner/outer semi-conductive shielding and copper tape metal shielding layers, with thicker XLPE insulation to resist high voltage partial discharge; low-voltage 0.6/1kV cables have no high-voltage shielding structure, only for low-voltage power distribution below 1kV.
Q3: Can this 10kV cable be buried directly in soil without conduits?
A: Yes, standard double steel tape armor meets national direct burial construction specifications; customized heavy anti-corrosion outer sheath is required for strong acid/alkali industrial chemical soil environments.
Q4: What is the maximum allowable short-circuit temperature of XLPE insulation?
A: The cable can withstand instantaneous short-circuit high temperature up to 250℃ within 5 seconds without insulation melting breakdown.
Q5: Is copper tape shielding necessary for 10kV cables?
A: Mandatory standard requirement; copper tape shielding balances electric field, suppresses partial discharge, and provides grounding protection when insulation fails to avoid safety accidents.
Q6: Do you supply flame retardant and low smoke zero halogen 10kV armored cables?
A: Full series modified models available, including ZC-YJV22 flame retardant, NH-YJV22 fire-resistant, WDZN-YJV22 low smoke zero halogen medium-voltage cables for subway, tunnel and underground comprehensive pipe corridor fire safety projects.
Our address
West of Sanqiao Street Office, Weiyang District, Xi'an City, Shaanxi Province, adjacent to Fortune Building
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