Premium RVV-5*4mm² Flexible Transmission Control Cable Stranded Copper PVC Insulated and Outer Sheathed

RVV 5×4 mm² Copper Conductor PVC Insulated & Sheathed Flexible Cord

Type:​ 60227 IEC 53 (RVV) · Voltage:​ 300/500 V · Standard:​ GB/T 5023.5-2008 / IEC 60227-5:2003 · Certification:​ CCC · Origin:​ Anhui, China

1. Electrical & Structural Parameters

2. Current-Carrying Capacity Reference

* Reference values for PVC-insulated copper conductor at 70 °C temp. class; actual ampacity must be corrected for ambient temperature, grouping/bundling, conduit fill, and local wiring regulations. Do not​ use the uncorrected free-air value for enclosed/conduit installations.

Derived electrical reference (5×4 mm², 30 m five-wire run — 3-phase 400 V or single-phase 220 V)

3. Product Performance Introduction

The RVV 5×4 mm²​ occupies a distinct position in the RVV family — it is the first size in the series where the conductor cross-section (4 mm²) and strand diameter (0.30 mm) step up to a heavier gauge, transforming the cable from a light-duty control wire into a medium-duty flexible power distribution cable. Each of the five cores uses a 56/0.30 mm Class 5 annealed copper stranding, delivering a conductor with substantially lower resistance (≤ 4.95 Ω/km vs. ≤ 26.0 Ω/km at 0.75 mm²) while retaining the flexibility needed for panel dress-in and equipment connection.

Why 5 cores at 4 mm² matters.​ This configuration is the standard 3-phase + Neutral + Earth (3P+N+E)​ layout for small-to-medium 3-phase equipment and distribution sub-feeds. Unlike running separate cables, a single 5-core assembly ensures all five conductors experience identical installation conditions — same bend radius, same pull tension, same thermal environment — which simplifies compliance with earth-loop impedance calculations and eliminates the risk of mixing phases with the wrong neutral or earth.

Thermal and mechanical scaling.​ Moving from 0.75 mm² to 4 mm² requires a thicker insulation wall (0.8 mm vs. 0.6 mm)​ and a substantially heavier sheath (1.2 mm vs. 0.9 mm)​ to contain the larger core bundle. The overall diameter jumps to 13.5–16.5 mm, and the minimum bend radius increases to 6× diameter (≈ 81–99 mm)​ — a direct consequence of the thicker conductors and the need to prevent inner-core buckling during bends. The cable weight increases proportionally to ~380 kg/km, requiring proper drum handling and mechanical assistance for long pulls.

Electrical robustness.​ At 4 mm², the ≤ 4.95 Ω/km resistance​ produces negligible I²R loss: at 26 A over 30 m (3-phase), the total power dissipated in the conductors is only ~40 W per core​ — easily dissipated by the PVC/D insulation without exceeding the 70 °C rating. The 2000 V AC / 5 min withstand​ and ≥ 0.009 MΩ·km @ 70 °C​ insulation resistance ensure long-term dielectric stability even under full-load cycling. Short-circuit withstand rises to 160 °C for 5 s, accommodating typical upstream MCB clearing times for a 4 mm² conductor.

Flexibility retained at larger gauge.​ Despite the heavier build, the 56-strand construction​ maintains a supple hand-feel that solid or Class 2 stranded conductors cannot match. This is critical for connections to vibrating equipment, movable machinery, or panels where periodic re-routing is expected over the installation's lifetime.

4. Specification Range

5. Applications & Scope of Use

Primary applications

• 3-phase equipment feeds:​ Small-to-medium motors (2.2–15 kW), 3-phase compressors, CNC machines, conveyor drives, pumps with 3-phase input.

• Distribution sub-boards:​ 3-phase + N + PE feed from main panel to sub-distribution boards in workshops, commercial kitchens, server rooms.

• Industrial automation:​ Robotic cell power, servo drive feeds, VFD output cables (where VFD-rated cable is not mandated), PLC panel main incomers.

• HVAC plant rooms:​ Chiller auxiliary circuits, AHU motor feeds, cooling tower pumps, heat pump 3-phase connections.

• Event & broadcast:​ 3-phase power distro for stage boxes, dimmer racks, video walls, broadcast trucks (indoor/protected use).

• Construction sites:​ Temporary 3-phase distribution boards, tower crane feeds, site-office power (protected routing).

• Agricultural:​ 3-phase irrigation pumps, greenhouse climate-control panels, barn ventilation systems.

• Marine / offshore (protected internal):​ Shipboard internal 3-phase distribution (non-exposed, inside enclosures).

Typical projects:​ industrial workshops and factories · commercial kitchens and laundries · data center auxiliary power · event production and staging · agricultural processing facilities · construction site temporary power · marine internal wiring (protected).

Use limitations:​ not for direct burial · not for prolonged outdoor UV exposure · not for fire-rated emergency circuits (use NH-RVV or WDZ-RVV) · not for VFD applications requiring symmetric grounding/shielding (use VFD-specific cable) · not for voltages above 500 V.

6. Installation & Handling

7. Selection Guide (RVV 5-core family & alternatives)

8. Quality Assurance

Every production batch is inspected per GB/T 5023.5-2008 / IEC 60227-5, covering: conductor resistance (4-wire Kelvin, all 5 cores), strand count & lay length verification, insulation & sheath thickness / concentricity (optical micrometer + slice gauge), high-voltage spark test (3000 V AC, 100% length), flame-retardancy sampling (GB/T 18380.12), PVC tensile/elongation and aging verification (80±2 °C × 168 h), plus dimensional and visual inspection including core color verification. Certificate of Compliance (CoC)​ and third-party test reports (e.g., CVC, CQC) are available on request, referenced to batch number and manufacturing date.