VV Cable
What is a VV Cable?
VV cable, an acronym for Vinyl insulated, Vinyl sheathed cable, is a standard and versatile type of electric cable widely used in numerous industrial, commercial, and residential applications. This cable type is renowned for its robust construction, flexibility, and reliable performance in diverse environments. The "Vinyl" refers to Polyvinyl Chloride (PVC), a durable thermoplastic polymer that provides excellent electrical insulation and mechanical protection. A typical VV cable consists of multiple copper or aluminum conductors, each individually insulated with PVC, all collectively encased within an outer PVC sheath. This dual-layer PVC construction offers a cost-effective solution with good resistance to moisture, acids, alkalis, and abrasion, making it suitable for fixed installations in dry, damp, or moderately corrosive conditions, including conduits, cable trays, and direct burial (when specifically rated).
Key Features and Benefits of VV Cable
- Excellent Insulation: High-grade PVC insulation ensures stable electrical performance and safety.
- Durability & Protection: The tough PVC sheath provides superior resistance to impact, crushing, and environmental stressors.
- Flexibility: Easier to install, route, and terminate in complex configurations compared to more rigid cable types.
- Flame Retardant: Standard formulations offer flame-retardant properties, enhancing fire safety in installations.
- Cost-Effectiveness: Provides a reliable and economical wiring solution for a wide range of voltage ratings.
- Moisture Resistance: Suitable for use in damp locations and outdoor applications (with appropriate specifications).
Technical Specifications and Product Parameters
Our VV cables are manufactured to stringent international standards (e.g., IEC, BS, VDE) to guarantee performance and safety. Below are the detailed specifications for our core product range.
Standard Construction
| Component | Material | Description |
|---|---|---|
| Conductor | Annealed Copper (Cu) / Aluminum (Al) | Plain or tinned, stranded for flexibility. Class 2 standard. |
| Insulation | Polyvinyl Chloride (PVC) | Color-coded as per standards (e.g., Brown, Blue, Green/Yellow). |
| Inner Sheath | PVC Bedding (for multi-core) | Binds insulated cores together. |
| Outer Sheath | Polyvinyl Chloride (PVC) | Provides overall mechanical and environmental protection. Standard color is Black or Grey. |
Detailed Product Data Table
| Core Configuration | Nominal Cross-Sectional Area (mm²) | Approx. Overall Diameter (mm) | Nominal Voltage Rating (Uo/U) | Max. Continuous Operating Temperature |
|---|---|---|---|---|
| Single Core | 1.5 - 400 | 3.5 - 35.0 | 600/1000V | +70°C |
| 2 Core | 1.5 - 185 | 8.0 - 52.0 | 600/1000V | +70°C |
| 3 Core | 1.5 - 300 | 8.5 - 67.0 | 600/1000V | +70°C |
| 3.5 Core (3+E) | 4 - 300 | 9.5 - 69.0 | 600/1000V | +70°C |
| 4 Core | 1.5 - 300 | 9.5 - 70.0 | 600/1000V | +70°C |
| 5 Core | 1.5 - 185 | 10.5 - 61.0 | 600/1000V | +70°C |
Additional Technical Properties
- Minimum Bending Radius: 15 x overall cable diameter during installation.
- Insulation Resistance: > 200 MΩ·km at 20°C.
- Voltage Test: 3.5kV AC for 5 minutes on finished cable.
- Flame Propagation: IEC 60332-1 compliant (Flame retardant).
- Halogen Content: Standard PVC contains halogens. For halogen-free requirements, please inquire about our Low Smoke Zero Halogen (LSZH) alternatives.
Common Applications of VV Cable
The adaptability of VV cable makes it a preferred choice for engineers and contractors across various sectors.
- Power Distribution: Feeder and branch circuit wiring in industrial plants, manufacturing facilities, and commercial buildings.
- Infrastructure: Wiring for switchboards, control panels, motor connections, and machine tools.
- Building Wiring: Suitable for lighting and power circuits in residential and office complexes when installed within appropriate containment systems.
- Outdoor & Utility Use: With appropriate UV-resistant sheathing or conduit protection, it can be used for outdoor lighting and auxiliary power lines.
- Temporary Installations: Often used in construction sites for temporary power supply due to its robustness.
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