RVVP 3x10mm² Shielded Control Cable Flexible Copper Cable for Heavy Industrial Equipment Control

RVVP 3x10mm² Shielded Control Cable Flexible Copper Cable for Heavy Industrial Equipment Control

Cable Designation & Meaning

Construction: Three 10.0 mm² fine-stranded copper conductors, PVC insulation on each core, laid up together, tinned copper braid shield (≥80% coverage) over the laid-up cores, PVC outer sheath.

Applicable Standards

• GB/T 5023.5-2008 / IEC 60227-5 — Polyvinyl chloride insulated cables — Flexible cables (cords)
• GB/T 3956-2008 / IEC 60228 — Conductors of insulated cables (Class 5 flexible)
• GB/T 18380.3 / IEC 60332-3 — Flame retardant (Category A/B/C as specified)
• GB/T 5023.2-2008 / IEC 60227-2 — Test methods

RVVP 3×10.0 mm² — Flexible Shielded Heavy Feeder Cable — Specification 

1. Overview & Ratings

RVVP 3×10.0 is the largest 3-core RVVP size — a shielded heavy feeder cable rated 300/500 V. It uses pure annealed bare copper (not tinned) for both the conductor and braid, maximizing conductivity. The three 10.0 mm² cores are laid up in a triangular formation and handle 3-phase main feeder runs, large motor feeds, and heavy-duty power distribution near the power cable territory. The braid suppresses EMI/RFI from nearby VFDs and servo drives. OD ≈ 20.0 mm, ≈ 380 kg/km (est.), ≈ 55–70 A. Max conductor temperature 70 °C, -15 to +70 °C. Intended for dry indoor heavy feeder circuits; for damp or outdoor duty, specify tinned copper variant.

2. Construction Stack (Inner → Outer, expanded)

3. Electrical Characteristics

DC resistance ≤ 1.91 Ω/km at 20 °C per GB/T 3956 Class 5 pure copper — roughly 76% lower than 2.5 mm², making it suitable for heavy 3-phase feeder runs and large motor circuits. Rated voltage 300/500 V. Estimated ampacity ≈ 55–70 A in free air at 30 °C. Insulation resistance ≥ 20 MΩ·km. Routine AC withstand test at 2000 V for 5 minutes. Typical capacitance ≈ 250 pF/m at 1 kHz. The pure copper braid provides ≈ 60–70 dB shielding at 30–1000 MHz. Voltage drop ≈ 0.19 V per 100 m at 10 A — suitable for heavy 3-phase feeder runs up to 50 m.

Insulation & Sheath Data

Electrical Parameters

Reference values: RVVP 3×10.0 at 52 A per core, 24 V DC → max load ≈ 1,248 W​ per core (low-power device supply). At 230 V AC → max load ≈ 11,960 VA​ per core (light power use).

4. Thermal & Flame Behaviour

Operating range -15 to +70 °C continuous. Short-circuit withstand up to 160 °C for ≤ 5 seconds. PVC insulation and jacket are flame-retardant per IEC 60332-1. The cable is halogen-containing (PVC), emitting HCl gas on burning — avoid in enclosed switchrooms. For public or enclosed spaces, specify LSZH alternatives. The 1.5 mm Type ST jacket is oil- and abrasion-resistant for heavy machinery and plant wiring. Note: bare pure copper oxidizes in humid environments — install in dry indoor or conduit-protected locations. UV resistance is limited.

Temperature Characteristics

Fire Performance (RVVP — PVC, Non-Low-Smoke)

5. Installation Practice & Handling

Minimum bending radius ≥ 6×OD ≈ 120 mm for fixed installation; 12×OD ≈ 240 mm for drag-chain applications. The 20.0 mm OD and 380 kg/km make this the bulkiest and heaviest 3-core RVVP — plan cable trays, lifting and bending allowance carefully. When terminating, connect the braid shield to earth at a robust shield gland or drain wire, as heavy feeder circuits carry high fault energy. Use heavy-duty ferrules on the 84-strand conductors. Route the cable away from high-power motor cables by at least 300 mm. After installation, verify insulation resistance, shield continuity and 3-phase polarity before energizing.

Mechanical & Installation Parameters

6. Typical Service Applications

3-phase main feeder runs from distribution panel to large machines, transformer secondary runs to load centers, large motor power feeds (up to ~15 HP), heavy-duty solenoid valve and actuator power, and interconnection between main switchgear and field distribution. The 10.0 mm² cross-section is the upper limit of RVVP 3-core size — the sweet spot for heavy feeder runs up to 30–50 m where current demand is 55–70 A and EMI protection is required. Not for: mains AC power distribution, high-speed fieldbus, direct burial, or outdoor UV-exposed runs.

7. Testing & Quality Assurance Regime

Routine tests (100% production): DC resistance, AC voltage withstand (2000 V/5 min), insulation resistance, conductor construction, wall thickness, dimensional check, print legibility, mass per length, visual appearance, and packing. Type tests (per batch / material change): shield coverage, heat aging (100 °C/7 days), cold bend (-15 °C), jacket tensile, flame retardancy, and shielding effectiveness. Every coil ships with mill test certificate, ROHS and REACH declarations. The 300/500 V rating uses a 2000 V withstand test.

Cable Parameters

Cable Test Parameters

Cable Cross Section Structure

Construction Description

8. Factory Advantages

Pure annealed copper conductor at 84×0.40 mm stranding delivers maximum conductivity with Class 5 flexibility. Very low DC resistance (1.91 Ω/km) supports heavy 3-phase feeder runs and large motor circuits. 1.0 mm insulation and 1.5 mm heavy-duty jacket provide robust dielectric and mechanical protection. Pure copper braid at ≈ 85% coverage provides low transfer impedance. 3-core triangular lay-up combines 3-phase power in one shielded cable. Colour-coded cores prevent wiring errors. 100% routine electrical QA on every reel. Cut-to-length on coils with sealed ends. Full traceability with MTC and certification support for industrial plant tenders.

9. Packaging, Storage & Logistics

Cut to customer-specified length on export-grade coils, with both ends heat-sealed to prevent moisture ingress. Coils wrapped in waterproof film and corrugated cardboard, labelled with product type, core count, cross-section, length, weight, production date and reel number. Standard lengths 100/200/500/1000 m. Store dry indoor, -10 to +40 °C, below 75% RH, away from direct sunlight and chemical solvents. FOB Shanghai/Nanjing/Qingdao; CIF and DAP available. Sample lead time 5–7 days; bulk production 15–25 days.

10. Procurement Specification

State cable designation "RVVP 3×10.0 pure copper", required length per coil, and core colour preference (e.g. brown/black/grey for 3-phase). Request the routine AC withstand test record (2000 V) and shield coverage certificate for the specific batch. Note that this is a pure copper (bare) heavy feeder variant for dry indoor use — for damp or outdoor applications, specify the tinned copper variant. Specify any regional certification requirements (UL 2464, CE, etc.) at order time. Payment: 30% T/T deposit, balance against B/L copy. Documents: MTC, ROHS/REACH, COO, commercial invoice, packing list.

11. Cable Industry FAQ

Q1: Why choose 10.0 mm² over 2.5 mm²? Much lower DC resistance (1.91 vs 7.98 Ω/km), higher ampacity (55–70 A vs 16–22 A), and enough current for heavy 3-phase feeder runs and large motor circuits.

Q2: Can it power large 3-phase motors? Yes — the 10.0 mm² core can carry 55–70 A, enough for 3-phase motors up to ~15 HP and heavy-duty solenoid valves.

Q3: How long can the heavy feeder run be? At 24 V DC and 10 A load, voltage drop is ≈ 0.19 V per 100 m — suitable for heavy feeder runs up to 50 m with acceptable voltage loss.

Q4: Is this the largest RVVP 3-core size? Yes — 10.0 mm² is the upper limit of the standard RVVP 3-core range. For larger cross-sections, switch to RVV or power cable.

Q5: What is the voltage rating? 300/500 V, suitable for low-voltage heavy feeder and power circuits.

Q6: Why pure copper instead of tinned? Bare pure copper has higher conductivity than tinned copper, ideal for heavy feeder circuits where every ohm matters.

Q7: Is it suitable for outdoor use? No — limited UV resistance and bare copper oxidize in humidity. Use indoors or in UV-protected conduits.

Q8: What is the bending radius? ≥ 6×OD ≈ 120 mm for fixed; 12× for moving applications.

Q9: What is the temperature range? -15 to +70 °C continuous.

Q10: What proof ships? Routine AC test record (2000 V) + shield coverage certificate + MTC.

Q11: When should I switch to a power cable? For cross-sections above 10.0 mm², higher voltage, or mains distribution, switch to RVV, YJV or other power cable types.