Overview
| Model NO. | NYY NYY-J NYY-O | Application | Outdoor & Industrial Wiring,Industrial Plants & Yards,residential expansion loops,Infrastructure & Street Lighting |
| Voltage | Low Voltage | Conductor | Bare Copper |
| Insulation Material | PVC | Jacket | PVC |
| Material Shape | Round | Temperature |
-40 °C ~ 70 °C
|
| Certification | ISO, CCC, CE, RoHS, VDE | Conductor Type | Class 2 Stranded Compacted |
| Brand | ZhongYI | Voltage Type | 0.6/1 kV |
| Company Name | ZHONGYI Cable Co., Ltd | CORE | 1, 2, 3, 4, 5 |
| Transport Package | Plastic Packaging and Cardboard Boxes | Specification | 1.5 mm² – 400 mm² |
| Origin | HEBEI China | Color | Green-Yellow, Brown, Black, Grey |
NYY Cable Core Technical Specifications & Data Sheet
| Nominal cross-sectional area (mm²) | Common AWG | Conductor structure (No./single wire diameter mm) | Nominal sheath thickness (mm) | Average outer diameter (mm) | Max DC resistance of conductor at 20 ℃ (Ω/km) | Approx.weight kg/km |
|---|---|---|---|---|---|---|
| 1.5 | 16 | 1/1.38 | 1.4 | 5.8 | 12.1 | 55 |
| 2.5 | 14 | 1/1.78 | 1.4 | 6.2 | 7.41 | 70 |
| 4 | 12 | 1/2.25 | 1.4 | 6.7 | 4.61 | 90 |
| 6 | 10 | 1/2.76 | 1.4 | 7.2 | 3.08 | 115 |
| 10 | 8 | 1/3.57 | 1.4 | 8.1 | 1.83 | 165 |
| 16 | 6 | 1/4.50 | 1.4 | 9.1 | 1.15 | 230 |
Features
NYY cable is a copper conductor, PVC-insulated, and PVC-sheathed power cable,it’s a
NYY NYY-J NYY-O Cable Comparison Table
| Model Code | Protective Earth (PE) Core | Core Identification Example (e.g., 4-Core) | Application Context |
|---|---|---|---|
| NYY | General Product Family | Depends on specification (-J or -O) | Standard VDE 0.276 heavy-duty PVC underground power and distribution cable. |
| NYY-J | YES (With Green-Yellow Earth) | Green-Yellow, Brown, Black, Grey | Mainstream low-voltage grids requiring strict safety grounding (direct burial, outdoor). |
| NYY-O | NO (Without Earth Core) | Blue, Brown, Black, Grey | Control circuits, double-insulated equipment, or networks where grounding is handled separately. |
VDE Standard Certified: Fully compliant with German DIN VDE 0276-603 or IEC 60502-1 standards for heavy-duty power installations.
Direct Burial Capability: Engineered with robust PVC insulation and outer sheathing, allowing direct installation underground without extra ducting.
Weather & UV Resistant: The heavy-duty black PVC compound provides high resistance to harsh sunlight, soil acids, and moisture.
Flexible Configurations: Available as NYY-J (with green/yellow grounding core) and NYY-O (without grounding core) to suit global grid codes.
Application
Underground Power Grids: Widely used as low-voltage main supply cables for buried underground power networks.
Outdoor & Industrial Wiring: Ideal for fixed installations in open air, industrial power stations, and factory cable trays.
Indoor Power Distribution: Commonly applied in indoor brickwork, concrete, and dry or damp premises for main boards.
Infrastructure & Street Lighting: Perfect for wiring street lights, traffic systems, and connecting local energy substations.
Certification
Factory
FAQ
1. What is the explicit technical distinction between NYY-J and NYM-J cables under VDE standards?
Mechanical Integrity & Underground Deployment:
The foundational difference lies in their officially rated voltage and physical structural strength. Our NYY-J (or NYY-O) cable is a heavy-duty power line rated at 0.6/1 kV, manufactured strictly to German DIN VDE 0276-603 benchmarks with a robust, weather-resistant outer PVC protective sheath. This heavy composition allows for direct underground burial without extra conduit protection. Conversely, NYM cables are light building installation wires rated at only 300/500 V, engineered exclusively for indoor plasterwork, concrete embedding, or dry/damp rooms, and are strictly banned from underground deployment.
2. Why are core identification color codes different between NYY-J and NYY-O specifications?
Safety Grounding Allocation Matrix:
The suffix directly defines the presence of a Circuit Protective Conductor (CPC), aligning with European VDE 0293-308 color harmonizations. The ‘NYM-J’ configuration integrates a dedicated Green-Yellow protective earth (PE) core alongside the active phase wires, serving as the mainstream choice for municipal power distribution requiring strict grounding loops. Conversely, ‘NYY-O’ contains no earth core (utilizing Blue, Brown, Black, Grey phase lines), tailored for double-insulated machinery or industrial networks where grounding is handled separately.
3. What does the full 'NYY' designation represent regarding its material architecture?
German VDE Standardization Coding:
Under standard European cable classification nomenclature, each character maps out a specific structural layer: ‘N’ specifies that the cable is manufactured and certified according to standard German VDE regulations; the first ‘Y’ represents premium Polyvinyl Chloride (PVC) compound used for the internal core insulation; and the second ‘Y’ indicates the rugged, flame-retardant black PVC outer protective jacket. This unarmored, durable layout guarantees absolute compliance during cross-border utility project bidding.
4. How does the Class 1 Solid Copper conductor benefit static industrial infrastructure wiring?
Premium Conductivity & Terminal Stability:
Our NYY series cables utilize 99.99% pure, oxygen-free annealed copper conductors designed as Class 1 solid cores (RE) for optimized structural stability across smaller cross-sections. Meeting rigid IEC 60228 DC resistance parameters (such as ≤ 12.1 Ω/km for 1.5 mm² at 20°C), this high-purity metallurgical matrix ensures maximum continuous ampacity, lower voltage drops, and zero localized hot-spots, making it ideal for static, permanent fixed installations in power stations and street lighting networks.
5. What wholesale configurations and project logistics support does ZHONGYI CABLE guarantee?
Rigorous Engineering Logistics & Drum Security:
As a dedicated B2B cable manufacturer, we supply NYY / NYY-J / NYY-O power cables in multi-core clusters (spanning 1 to 5 cores) across standard cross-sectional profiles from 1.5 mm² up to 400 mm². To shield the dense black PVC jacket from abrasion and deformation during international ocean sea freight transit, bulk wholesale orders are wound securely on heavy-duty wooden drums or reinforced steel reels, backed by complete Type Test Reports and Routine Factory Test Certificates to clear destination ports smoothly.
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