BV 450/750V Copper PVC-Insulated Single-Core Building Wire
BV is the IEC 60227-01 reference building wire — solid Class 1 copper conductor with extruded PVC insulation, no outer sheath. Sized 1.5 mm² to 10 mm² for residential and small commercial branch circuits, pulled through PVC or steel conduit in walls, ceilings, and risers.
Technical Specifications
| Conductor material | Annealed copper, Class 1 solid |
| Insulation | PVC, Type PVC/A |
| Outer sheath | None (single-conductor only) |
| Rated voltage U₀/U | 450/750 V |
| Max conductor temperature | 70 °C |
| Cross-sections available | 1.5 – 10 mm² |
| Installation | In conduit only |
| Color code (phase) | Red / Yellow / Blue per IEC |
| Color code (neutral) | Black or light blue |
| Color code (earth) | Yellow-green |
Compliance Standards
- ✓IEC 60227-1
- ✓IEC 60227-3 (PVC type)
- ✓GB/T 5023.3
Overview
Solid annealed copper conductor (Class 1 per IEC 60228) with PVC insulation rated for 70°C continuous service. The single-conductor construction is designed for conduit installation — the conduit provides mechanical protection, the wire provides only insulation. Color-coded per IEC standard for phase, neutral, and earth.
Key Features
IEC 60227 reference construction
The international standard residential/light-commercial wiring conductor — accepted by every electrical inspector in SEA.
Color-coded for site
Phase / neutral / earth color marking matches IEC convention — terminations land correctly without site re-marking.
Applications
Residential branch circuits
Lighting circuits, socket outlets, panel feeders pulled through PVC conduit in walls and ceilings.
Distribution-board panel wiring
Internal panel wiring between busbars, breakers, and outgoing terminal blocks.