NYY-J And NYY-O Power Cable
Conductor Material：Copper
Insulation & Sheath:PVC / PVC
Core Configurations:1–27 Cores
Standards Compliant:VDE / IEC
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of nyy-j and nyy-o power cable in China. If you're going to buy customized nyy-j and nyy-o power cable made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
What Are NYY-J and NYY-O Cables?
NYY-J and NYY-O power cables are VDE-standardized low-voltage power and control cables designed for fixed installation in indoor, outdoor, underground, and concrete environments. Manufactured to IEC 60502-1 and VDE 0276-603 standards, these PVC insulated power cables deliver reliable performance for power distribution, building wiring, and industrial installations.
The NYY designation stands for: N = Normalized power cable, Y = PVC insulated, Y = PVC sheathed. The suffix -J indicates the cable includes a green/yellow protective earth conductor, while -O means it is supplied without a dedicated earth core - ideal for installations where earthing is provided separately.
Class 1 solid or Class 2 stranded plain annealed copper conductor
PVC insulation with color-coded cores for easy identification
Black UV-stabilized PVC outer sheath for outdoor durability
Flame retardant to IEC/EN 60332-1-2 standard
Suitable for direct burial underground (with appropriate backfill)
💡 Not sure whether you need NYY-J or NYY-O?
Our cable engineers can help you select the right configuration based on your project's earthing requirements and installation environment.
NYY-J Cable Specification & Technical Parameters
Complete technical data for our 0.6/1kV NYY cable range, including construction details, electrical characteristics, and dimensional specifications for all standard configurations.
Construction Specifications
- Rated Voltage (U0/U)0.6/1 kV
- Conductor MaterialPlain annealed copper
- Conductor ClassClass 1 (Solid) / Class 2 (Stranded)
- Conductor StandardIEC 60228 / VDE 0295
- Insulation MaterialPVC (Polyvinyl Chloride)
- Sheath MaterialPVC-FR (Flame Retardant)
- Sheath ColorBlack (UV-stabilized)
- Filler MaterialPVC / Non-hygroscopic
Electrical & Thermal Properties
- Max. Operating Temp. (Fixed)+70°C
- Min. Installation Temp. (Fixed)-15°C
- Max. Operating Temp. (Flexing)+50°C
- Min. Bend Radius (Fixed)10 × cable Ø
- Min. Bend Radius (Flexing)15 × cable Ø
- Short Circuit Temp. (max 5s)+160°C
- Flame Test StandardIEC/EN 60332-1-2
- Product StandardIEC 60502-1 / VDE 0276-603
📊 Dimensions & Weight Reference Table - NYY Cable (Copper / PVC / PVC)
| No. of Cores | Cross Section (mm²) | Insulation Thickness (mm) | Sheath Thickness (mm) | Approx. OD (mm) | Approx. Weight (kg/km) |
|---|---|---|---|---|---|
| 1 Core | 2.5 | 0.8 | 1.4 | 6.2 | 62 |
| 4 | 1.0 | 1.4 | 7.5 | 85 | |
| 10 | 1.0 | 1.4 | 8.6 | 155 | |
| 25 | 1.2 | 1.4 | 11.1 | 318 | |
| 95 | 1.6 | 1.5 | 17.6 | 1,020 | |
| 2 Core | 1.5 | 0.8 | 1.8 | 10.0 | 147 |
| 2.5 | 0.8 | 1.8 | 10.7 | 179 | |
| 6 | 1.0 | 1.8 | 14.2 | 337 | |
| 16 | 1.0 | 1.8 | 18.2 | 644 | |
| 3 Core | 1.5 | 0.8 | 1.8 | 10.4 | 166 |
| 4 | 1.0 | 1.8 | 13.1 | 299 | |
| 10 | 1.0 | 1.8 | 17.1 | 570 | |
| 25 | 1.2 | 1.8 | 22.1 | 1,141 | |
| 50 | 1.4 | 1.8 | 27.6 | 1,964 | |
| 4 Core | 2.5 | 0.8 | 1.8 | 12.1 | 252 |
| 6 | 1.0 | 1.8 | 16.5 | 465 | |
| 16 | 1.0 | 1.8 | 21.1 | 992 | |
| 35 | 1.2 | 1.8 | 26.6 | 1,861 | |
| 95 | 1.6 | 2.2 | 40.4 | 4,691 | |
| 5 Core | 2.5 | 0.8 | 1.8 | 13.1 | 302 |
| 10 | 1.0 | 1.8 | 20.3 | 853 | |
| 16 | 1.0 | 1.8 | 23.1 | 1,212 | |
| 7 Core | 1.5 | 1.0 | 1.8 | 16.6 | 477 |
| 12 Core | 1.5 | 0.8 | 1.8 | 16.6 | 475 |
| 19 Core | 2.5 | 0.8 | 1.8 | 20.3 | 843 |
* Dimensions and weights are approximate values for reference only. Custom sizes and core configurations are available on request. Request custom specification →
NYY-J vs NYY-O: What's the Difference?
Understanding the key distinction between NYY-J and NYY-O cables ensures you select the right product for your installation's earthing requirements and regulatory compliance.
| Feature | NYY-J Cable | NYY-O Cable |
|---|---|---|
| Green/Yellow Earth Conductor | ✓ Yes - included as standard | ✗ No - no dedicated earth core |
| Core Identification | Colored cores + green/yellow earth | Colored or numbered cores only |
| Earthing Systems | Suitable for TN-S, TT, TN-C-S systems | For systems with separate earthing or double-insulated equipment |
| Typical Applications | Building wiring, mains supply, machinery, outdoor lighting | Power distribution circuits, control circuits, isolated systems |
| Conductor Material | Copper (Class 1 solid / Class 2 stranded) | Copper (Class 1 solid / Class 2 stranded) |
| Insulation & Sheath | PVC insulated, PVC sheathed (black) | PVC insulated, PVC sheathed (black) |
| Voltage Rating | 0.6/1kV | 0.6/1kV |
| Flame Retardant | ✓ IEC/EN 60332-1-2 | ✓ IEC/EN 60332-1-2 |
| UV Resistant Sheath | ✓ Black UV-stabilized | ✓ Black UV-stabilized |
| Direct Burial Suitable | ✓ (with proper backfill) | ✓ (with proper backfill) |
Where Are 0.6/1kV NYY Cables Used?
NYY power cables are versatile workhorses of low-voltage electrical infrastructure. Their robust PVC construction and UV resistance make them suitable for a wide range of fixed installation environments across residential, commercial, and industrial sectors.
Building & Construction
Main power distribution in residential, commercial, and industrial buildings. Suitable for installation in walls, floors, and concrete structures.
Direct Burial Underground
Direct burial PVC cable for outdoor power supply, street lighting, and cable duct networks. Black UV-stabilized sheath withstands soil and moisture exposure.
Industrial Plants
Power and control cabling in factories, warehouses, and processing facilities. Connects machinery, motor control centers, and distribution boards.
Power Distribution Networks
Secondary distribution lines from transformers to end-user panels. Ideal for utility and municipal infrastructure projects.
Water & Submerged Installations
Suitable for installation in water (stationary applications) and damp environments. Used in water treatment plants and pumping stations.
Outdoor & Exposed Applications
Outdoor lighting, solar farms, and exposed installations where UV resistance and weather durability are essential requirements.
🎯 Working on a specific project?
Whether it's a commercial building, solar farm, or industrial facility, we can customize NYY cables to match your exact requirements - core count, cross-section, length, and special certifications.
Key Advantages of Our PVC Insulated Power Cable
Our NYY cables are engineered with premium materials and strict quality control to deliver long-lasting, safe, and reliable performance in demanding environments.
Flame Retardant
PVC-FR outer sheath limits flame spread per IEC/EN 60332-1-2, enhancing fire safety in buildings and enclosed spaces.
UV Resistant
Black carbon-loaded PVC sheath provides excellent UV stability for direct outdoor exposure without cracking or degradation.
Water Resistant
Dense PVC sheath and non-hygroscopic fillers protect against moisture ingress, suitable for underground and submerged installations.
VDE & IEC Certified
Manufactured to IEC 60502-1 and VDE 0276-603 standards with full traceability and third-party test reports available.
Flexible Configuration
Available from 1 to 27 cores with cross-sections from 1.5mm² to 300mm². Custom core counts and sizes available on request.
Cost-Effective
Factory-direct pricing with no middleman markup. Competitive pricing for bulk orders and project quantities.
Fast Delivery
Large production capacity and optimized logistics ensure short lead times - standard sizes often ship within 7–15 days.
Quality Warranty
Every cable undergoes strict factory testing including voltage withstand, conductor resistance, and dimensional inspection.
Ready to Source Premium NYY Cables?
Get a competitive quote within 24 hours. Our technical team is ready to help you select the right NYY-J or NYY-O cable for your project.
Quality Control
NYY-J / NYY-O 0.6/1kV Low Voltage Power Cable
Raw Material Test
Raw Material Test establishes the quality foundation for the NYY-J / NYY-O 0.6/1kV Low Voltage Power Cable. Copper conductors are verified for conductivity, dimensional accuracy, and mechanical strength. PVC insulation materials are tested for dielectric performance, thermal stability, and resistance to aging. Outer sheath compounds undergo abrasion, tensile, and environmental resistance testing. For NYY-J designs, protective earth conductor materials are separately inspected. Only qualified raw materials are released for manufacturing to ensure consistent cable quality.
Process inspection
Process Inspection ensures controlled production of the NYY-J / NYY-O 0.6/1kV Low Voltage Power Cable. Conductor preparation and stranding are inspected for uniform structure. PVC insulation extrusion is monitored for correct thickness and surface quality. Core identification and assembly are checked to match NYY-J or NYY-O specifications. Sheath extrusion is continuously controlled to ensure mechanical protection and dimensional compliance. Routine in-process tests confirm production stability.
Finished Product
Finished Product Test confirms the safety and reliability of the NYY-J / NYY-O 0.6/1kV Low Voltage Power Cable before delivery. Electrical tests include conductor resistance and insulation resistance measurement. Voltage testing verifies insulation strength. Mechanical and visual inspections ensure correct construction, labeling, and overall workmanship. Voltage withstand tests confirm insulation reliability at rated voltage. Mechanical tests assess sheath robustness and flexibility. Visual inspection ensures proper marking, core identification, and packaging prior to shipment.
FAQ
Can NYY cable be buried directly underground?
Yes - direct burial NYY cable is one of its primary applications. The robust PVC outer sheath provides sufficient mechanical protection for direct burial in soil, provided the backfill is free from sharp objects and there is no risk of significant mechanical stress. For installations under roads or areas with heavy traffic, additional protection via conduit or ducting is recommended. Always follow local wiring regulations (such as BS 7671 in the UK) for burial depth requirements.
What does NYY stand for in cable terminology?
NYY is a VDE standard cable designation where: N = Normalized power cable (German: Normalkabel), Y = PVC insulated (German: Polyvinylchlorid), Y = PVC sheathed (German: PVC Mantel). The suffix -J means the cable includes a protective earth conductor (green/yellow), and -O means it is supplied without a protective earth core.
What is the voltage rating of NYY cables?
NYY power cables are rated at 0.6/1kV (600/1000V), which means they are designed for low-voltage power distribution systems with a nominal phase-to-earth voltage of 600V and phase-to-phase voltage of 1000V. This covers the vast majority of residential, commercial, and industrial low-voltage installations worldwide.
What's the difference between NYY and NYM cables?
While both are PVC insulated power cables, NYY cable features a thicker, UV-stabilized black PVC outer sheath designed for outdoor, underground, and direct burial applications. NYM cable has a thinner sheath and is primarily intended for indoor fixed installation within buildings. NYY offers superior mechanical protection and weather resistance compared to NYM.
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