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Single-Core PVC Insulated Building Wire
BVGB/T 5023.3 / IEC 60227-3

Single-Core PVC Insulated Building Wire

450/750 V solid-conductor house wiring wire in 1.5–10 mm² — the dependable standard for fixed electrical installation.

Type

Single-core PVC insulated building wire

Standard

GB/T 5023.3 / IEC 60227-3

Voltage Rating

450/750 V

Conductor

Class 1 solid bare copper

Jacket

Flame-retardant PVC

  • 450/750 V rated to GB/T 5023.3 and IEC 60227-3
  • Class 1 solid bare copper conductors — no CCA
  • Gauge range 1.5, 2.5, 4, 6, 10 mm²
  • Flame-retardant PVC insulation, 70 °C max conductor temperature
  • Single core in red, yellow, blue, green/yellow and other colors
  • 100 m coils with length marking, shrink-wrapped

Full Specifications

Overview

Type
Single-core PVC insulated building wire
Standard
GB/T 5023.3-2008, IEC 60227-3
Rated Voltage
450/750 V
Rated Temperature
70 °C (max conductor temperature)
Application
Fixed wiring in buildings, switchboards, lighting and power circuits
Color Options
Red, yellow, blue, green/yellow, black, white, custom colors

Conductor & Construction

Conductor
Class 1 solid bare copper (1.5–10 mm²)
Insulation
Flame-retardant PVC compound
Insulation Thickness
0.7–1.0 mm by gauge (per standard)
Overall Diameter
≈ 2.9–6.8 mm by gauge
Resistance
Meets IEC 60228 max conductor resistance at 20 °C

Electrical Performance

Voltage Test
2.5 kV AC, 5 min
Insulation Resistance
≥ 0.011 MΩ·km (70 °C)
Conductor Resistance @20 °C
1.5 mm² ≤ 12.1 Ω/km; 2.5 mm² ≤ 7.41 Ω/km; 4 mm² ≤ 4.61 Ω/km
Flammability
Flame-retardant per GB/T 18380 / IEC 60332-1

Installation & Packaging

Bend Radius
≥ 10× overall diameter (fixed installation)
Temperature Range
-15 °C to +70 °C (operation)
Standard Length
100 m coils (custom lengths on request)
Packaging
Shrink-wrapped coil with label, 100 coils/carton or palletized
Certifications
CCC, CE, RoHS

Specifications are indicative for the standard configuration and subject to change with continuous product improvement. Confirm final parameters with our sales team for your order.