BV/BVR PVC Insulated Copper Building Wire (450/750V)
The Foundation of Safe and Efficient Electrical Infrastructure
CableApex’s BV and BVR series represent the pinnacle of building wire technology. Specifically engineered for fixed installation in power devices, lighting, and internal wiring, these cables are built with 99.99% high-purity oxygen-free copper. This ensures minimal power loss, reduced heat generation, and a significantly longer lifespan compared to standard recycled copper alternatives. Whether you are managing a high-rise construction or an industrial plant, CableApex provides the reliability your project demands.

Technical Specifications & Standards
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Voltage Rating: 450/750V (Also suitable for 300/500V systems).
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Temperature Range: -5°C to +70°C (High-temperature 90°C/105°C versions available).
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Conductor Type: BV (Class 1 Solid) / BVR (Class 2 Stranded Flexible).
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Compliance: Manufactured under strict quality control, compliant with IEC 60227 and GB/T 5023.
Comparison: BV vs. BVR Application Guide
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BV (Solid Copper Wire): Preferred for permanent, fixed installations in conduits or walls. Its rigid structure makes it ideal for long, straight runs.
BVR (Flexible Copper Wire): Composed of multiple fine copper strands. It offers superior flexibility, making it significantly easier to install in complex conduit systems or areas requiring slight movement.
Technical Parameter Table
| Size (mm²) | Conductor Construction (n/mm) | Insulation Thickness (mm) | Approx. Outer Diameter (mm) | Max Resistance at 20°C (Ω/km) |
| 1.5 mm² | 1/1.38 (BV) / 7/0.52 (BVR) | 0.7 | 2.8 – 3.3 | 12.1 |
| 2.5 mm² | 1/1.78 (BV) / 7/0.67 (BVR) | 0.8 | 3.4 – 3.9 | 7.41 |
| 4.0 mm² | 1/2.25 (BV) / 7/0.85 (BVR) | 0.8 | 3.9 – 4.4 | 4.61 |
| 6.0 mm² | 1/2.76 (BV) / 7/1.04 (BVR) | 0.8 | 4.4 – 4.9 | 3.08 |

Why Choose CableApex as Your Building Wire Supplier?
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15-Year Manufacturing Heritage: Leveraging over a decade of expertise to provide consistent, high-standard cabling solutions.
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Uncompromising Material Purity: We strictly use 99.99% pure OFC copper to ensure your electrical systems operate at peak efficiency and safety.
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20-Acre Production Base: Our large-scale facility in Yangzhou ensures we can handle bulk orders with stable lead times and factory-direct pricing.
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Industrial Support: As a dedicated partner to international traders and contractors, we provide full technical support and documentation for global projects.
Quality Certification
Our production facility maintains rigorous quality management systems. For industrial and appliance-specific requirements, please also refer to our UL File E333030 certified product lines.

Want to see more? Please check out our UL-certified products.
- UL 1007 PVC Insulated Hook-up Wire
- UL 1015 PVC Insulated Hook-up Wire
- UL 1332 FEP Insulated High Temperature Wire
- UL 3266 XLPE Insulated Hook-up Wire
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