ZRYJV Cable
What is ZRYJV Cable?
ZRYJV cable is a versatile and high-performance flame-retardant PVC insulated and sheathed power cable, conforming to the JB/T 10438 standard. Designed for fixed installations, it is extensively used in power transmission and distribution networks, industrial plants, infrastructure projects, and commercial buildings where reliable performance and enhanced safety are paramount.
The "ZR" designation indicates its flame-retardant properties, meaning it is engineered to inhibit the propagation of flame along the cable length, contributing to improved fire safety in case of an electrical fault. This makes ZRYJV an excellent choice for installations in vertical shafts, crowded ducts, and public spaces where fire safety regulations are stringent.
Its robust construction ensures excellent resistance to mechanical stress, abrasion, and common environmental factors, providing long-term reliability and stable electrical performance.
Key Features and Advantages of ZRYJV Cable
- Flame Retardant: The specially formulated PVC composition significantly reduces flame spread, enhancing overall installation safety and compliance with fire codes.
- Excellent Electrical Properties: Provides stable conductivity and reliable insulation resistance, ensuring efficient power delivery with minimal losses.
- High Flexibility & Durability: Easier to install in complex routing compared to rigid cables, with a tough sheath that resists wear, tear, and impact.
- Environmental Resistance: The PVC sheath offers good resistance to moisture, oils, acids, and alkalis, making it suitable for various indoor and protected outdoor environments.
- Cost-Effective Solution: Offers a balanced combination of performance, safety, and affordability for a wide range of low to medium voltage applications.
Detailed Technical Specifications of ZRYJV Cable
The following tables outline the core technical parameters for standard ZRYJV cable configurations.
Conductor Specifications
| Conductor Type | Material | Standard | Remarks |
|---|---|---|---|
| Class 1 / Class 2 | Plain Annealed Copper | GB/T 3956 | Class 1 for solid, Class 2 for stranded. |
Insulation and Sheath Specifications
| Component | Material | Color | Thickness |
|---|---|---|---|
| Insulation | Flame Retardant PVC (ZR-PVC) | Phase: Red, Yellow, Blue / Neutral: Blue / Earth: Green-Yellow | As per rated voltage and conductor size. |
| Sheath (Outer Cover) | Flame Retardant PVC (ZR-PVC) | Typically Black or Grey | Nominal: 1.5mm (for example) |
Electrical and Performance Characteristics
| Parameter | Value / Standard | Test Condition |
|---|---|---|
| Rated Voltage (U0/U) | 0.6/1 kV | - |
| Max. Operating Temperature | 70°C | Conductor in continuous operation. |
| Short-Circuit Temperature | 160°C | Max duration 5 seconds. |
| Min. Bending Radius | 15 x Cable Diameter (Installation) 12 x Cable Diameter (Fixed) |
During installation and in fixed position. |
| Flame Retardancy Test | IEC 60332-1 (Single vertical wire test) | Meets requirements for flame propagation. |
Common Applications of ZRYJV Power Cable
- Power Distribution Systems: Ideal for main and sub-circuit wiring in commercial complexes, hotels, and residential buildings.
- Industrial Power Supply: Used to supply power to machinery, control panels, and lighting systems in factories and plants.
- Infrastructure Projects: Suitable for fixed installations in tunnels, railway stations, airports, and water treatment facilities.
- Building Internal Wiring: Deployed in conduits, trunking, and on cable trays within building structures.
- Renewable Energy Plants: Can be utilized for internal power collection and distribution in solar and wind power installations.
For optimal performance and safety, ZRYJV cables should be installed by qualified electricians in accordance with local electrical codes and regulations, considering factors such as ambient temperature, grouping, and load capacity.
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