RVVP 2x0.75mm² Precision Low Noise Shielded Instrument Cable Braided Copper Communication 300/500V
Product Summary
Product Details
RVVP shielded instrument cable
,2 core braided copper cable
,300/500V low noise cable
Product Description
RVVP 2x0.75mm² Precision Low Noise Shielded Instrument Cable Braided Copper Communication 300/500V
Cable Designation & Meaning
|
Code |
Meaning |
|---|---|
|
R |
Flexible cord |
|
V |
PVC insulation |
|
V |
PVC sheath |
|
P |
Copper braid shield |
|
2×0.75 mm² |
Two cores of 0.75 mm² copper conductor |
Construction: Two 0.75 mm² fine-stranded copper conductors, PVC insulation on each core, laid up together, tinned copper braid shield (≥85% 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 2×0.75 mm² — Flexible Shielded Control Cable — Specification
1. Overview & Ratings
RVVP is a flexible shielded control cable: R = flexible tinned copper conductor, V = PVC insulation, V = PVC outer sheath, P = braided copper shield. The 2×0.75 version has two 0.75 mm² cores rated 300/500 V. OD ≈ 6.8 mm, ≈ 48 kg/km (est.), ≈ 6–8 A. The tinned copper braid provides ≈ 85% coverage for EMI/RFI protection. Designed for control panels, instrumentation, signal transmission and low-voltage interconnections in industrial and automation environments. Max conductor temperature 70 °C, operating range -15 to +70 °C. Not for outdoor direct sun without UV protection, and not for mains power distribution.
2. Construction Stack (Inner → Outer, expanded)
| Layer / Feature | Build | Function |
|---|---|---|
| Conductor (×2) | Tinned Cu, Class 5, 24×0.20 mm per core | R ≤ 26.0 Ω/km, flexible, solderable |
| Insulation | PVC ≈ 0.6 mm per core | Electrical insulation, colour-coded |
| Inner sheath | PVC ≈ 0.5 mm | Round bedding, braid substrate |
| Braid shield | Tinned Cu, ≈ 85% coverage | EMI/RFI shielding, drain path |
| Outer jacket | PVC ≈ 0.7 mm | Mechanical, oil/abrasion protection |
3. Electrical Characteristics
DC resistance ≤ 26.0 Ω/km at 20 °C per GB/T 3956. Rated voltage 300/500 V. Estimated ampacity ≈ 6–8 A in free air at 30 °C. Insulation resistance ≥ 20 MΩ·km. Routine AC withstand test at 2000 V for 5 minutes. Typical capacitance ≈ 120 pF/m at 1 kHz. Characteristic impedance ≈ 100–120 Ω at high frequency. The braid shield provides ≈ 60–70 dB shielding effectiveness at 30–1000 MHz, blocking interference from VFDs, motors and welding equipment.
Insulation & Sheath Data
|
Property |
Value |
|---|---|
|
Insulation material |
PVC (Type TI2) |
|
Outer sheath material |
PVC (Type TM2) |
|
Shield material |
Tinned copper braid |
|
Long-term service temp. |
70 °C (continuous) |
|
Max. conductor temp. (normal) |
70 °C |
|
Short-circuit temp. (≤5 s) |
160 °C |
|
Emergency overload temp. |
100 °C (≤1 h) |
|
Test voltage AC (5 min) |
2.0 kV |
|
Dielectric strength |
≥ 20 kV/mm |
|
Volume resistivity @20 °C |
≥ 1×10¹² Ω·cm |
|
Shield |
Tinned copper braid, ≥ 85% coverage (EMI/RFI protection) |
Electrical Parameters
|
Parameter |
Value |
Note |
|---|---|---|
|
Rated voltage U₀/U |
300 / 300 V |
GB/T 5023.5 (control/signal) |
|
Max. system voltage |
350 V AC / 500 V DC |
— |
|
Test voltage AC (5 min) |
2.0 kV |
Routine test |
|
DC resistance @20 °C |
≤ 26.0 Ω/km per core |
GB/T 3956 Class 5 Cu max (0.75 mm²) |
|
AC resistance @70 °C (est.) |
≈ 32.5 Ω/km per core |
— |
|
Current rating in air (30 °C) |
Control: 6 A per core (recommended max.) |
conservative control rating |
|
Current rating in tray (30 °C) |
Control: 7 A per core |
— |
|
DC current capacity |
6 A per core |
— |
|
Short-circuit current (1 s, Cu, 160 °C) |
≈ 82 A per core |
— |
|
Capacitance (core-to-core, approx.) |
≈ 0.12 µF/km |
PVC |
|
Capacitance (core-to-shield, approx.) |
≈ 0.20 µF/km |
PVC |
|
Inductive reactance (approx.) |
≈ 0.07 Ω/km |
at 50 Hz |
|
Frequency |
DC / up to 100 MHz (signal) |
— |
|
Characteristic impedance (approx.) |
50 – 70 Ω |
signal reference |
|
Attenuation (at 1 MHz, approx.) |
≈ 0.8 dB/100 m |
— |
Reference values: RVVP 2×0.75 at 6 A per core, 24 V DC → max load ≈ 144 W per core (control/signal use). At 230 V AC → max load ≈ 1,380 VA per core (not recommended for power).
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 single vertical flame test. The cable is halogen-containing (PVC), so it emits HCl gas on burning — not suitable for enclosed spaces where corrosive gas is a concern. For low-smoke halogen-free applications, choose RVVSP or LSZH alternatives. Oil-resistant Type ST jacket suits machine tools and industrial cabinets. UV resistance is limited; install indoors or in UV-protected conduits.
Temperature Characteristics
|
Property |
Value |
|---|---|
|
Max. conductor operating temp. |
70 °C (continuous) |
|
Max. short-circuit temp. (≤5 s) |
160 °C |
|
Emergency overload temp. |
100 °C (≤1 h) |
|
Min. installation ambient temp. |
−15 °C |
|
Service ambient range |
−15 °C to +70 °C |
|
Flexing temp. range |
−5 °C to +70 °C |
Fire Performance (RVVP — PVC, Non-Low-Smoke)
|
Property |
Value / Requirement |
|---|---|
|
Flame retardant |
GB/T 18380.3 / IEC 60332-3 (Category A/B/C as specified) |
|
Halogen content |
Contains halogen (PVC) |
|
Smoke density |
Not low-smoke (IEC 61034-2 not applicable) |
|
Corrosivity |
Corrosive (HCl emission from PVC) |
|
Toxicity |
Toxic fumes when burned (CO, HCl) |
|
EMI shielding |
Excellent (tinned copper braid, ≥85% coverage) |
|
UV resistance |
Poor (PVC degrades outdoors, use conduit or UV-resistant) |
|
Water resistance |
Limited (PVC sheath) |
5. Installation Practice & Handling
Minimum bending radius ≥ 6×OD ≈ 41 mm for fixed installation; 12×OD for moving or drag-chain applications. When terminating, connect the braid shield to earth at one end (or both ends per system design) using a shield drain wire or gland. Do not over-tighten cable glands, which would crush the braid. Use appropriate ferrules on the fine Class 5 strands. Route the cable away from high-power motor cables by at least 200 mm, or use separate metal conduits for the shielded signal pair. After installation, verify insulation resistance and shield continuity before energizing.
Mechanical & Installation Parameters
|
Parameter |
Value |
Remarks |
|---|---|---|
|
Minimum bending radius |
≥ 6 × OD → ≈ 41 mm at Ø6.8 mm |
flexible cable |
|
Max. pulling tension |
11 N per core (0.75 mm² × 15 N/mm²) |
Cu conductor limit |
|
Direct burial |
Not recommended (PVC, non-UV, water ingress) |
— |
|
Surface mounting |
Cable tray, conduit, trunking, DIN rail |
— |
|
Conduit ID |
≥ 16 mm |
— |
|
Fixing |
cable ties, clamps, clips |
— |
|
Impact resistance |
Low (PVC) |
— |
|
Water resistance |
Limited (PVC sheath) |
— |
|
UV resistance |
Poor (indoor/conduit only) |
— |
|
Flex life |
Excellent (Class 5 fine-stranded) |
flexible routing |
|
Termination note |
Screw terminals, IDC connectors, D-sub, RJ45 (via adapter) |
— |
6. Typical Service Applications
Control panels and PLC I/O wiring, instrumentation and sensor signals (4–20 mA, 0–10 V), relay and contactor control circuits, interconnection between switches and contactors, low-voltage alarm circuits, and audio/signal interconnections in industrial environments. Particularly suitable near variable-frequency drives (VFDs), servo motors, welding equipment and other noise sources, where the braid shield suppresses electromagnetic interference. Not for: mains AC power distribution, high-speed data bus (use profibus/FlexRay), 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 measurement. Every coil ships with mill test certificate, ROHS and REACH declarations. The in-house lab is calibrated annually against national standards.
Cable Parameters
| RVVP 2×0.75 mm² — Full Parameter Sheet | ||||
| Shielded flexible control cable · 300/500 V · tinned Cu Class 5 · PVC insulation/jacket · tinned Cu braid ≈ 85% · GB/T 9330 / IEC 60227 | ||||
| Section | Parameter | Value | Unit | Remarks / Standard |
| 01 · Identification | ||||
| Cable type | RVVP | — | Flexible tinned Cu, PVC ins., PVC jacket, braid shield | |
| Rated voltage (U0/U) | 300/500 | V | Control / signal circuits | |
| Number of cores | 2 | — | 2 cores, colour-coded | |
| Nominal cross-section | 0.75 | mm² | Per core, Class 5 flexible | |
| Conductor material | Tinned annealed copper | — | Class 5 per GB/T 3956 / IEC 60228 | |
| Insulation material | PVC (Type SP) | — | 70 °C rated | |
| Shield | Tinned copper braid | — | ≈ 85% coverage | |
| Outer jacket material | PVC (Type ST) | — | Oil/abrasion resistant | |
| Standard reference | GB/T 9330 / IEC 60227 / UL 2464 | — | Harmonized control cable | |
| 02 · Conductor | ||||
| Stranding | 24 × 0.20 mm | — | Class 5 tinned copper per core | |
| Conductor diameter | ≈ 1.05 | mm | Per core, strand-lay | |
| DC resistance @ 20 °C | ≤ 26.0 | Ω/km | Maximum per GB/T 3956 | |
| Conductor surface | Tinned | — | Anti-corrosion, solderable | |
| 03 · Insulation | ||||
| Insulation type | PVC (Type SP) | — | Soft PVC, 70 °C | |
| Insulation thickness | ≈ 0.6 | mm | Nominal | |
| Insulated core Ø | ≈ 2.25 | mm | Per core | |
| Insulation resistance | ≥ 20 | MΩ·km | At 20 °C | |
| 04 · Shield & Inner Sheath | ||||
| Inner sheath material | PVC | — | Bedding over laid-up cores | |
| Inner sheath thickness | ≈ 0.5 | mm | Nominal | |
| Shield type | Tinned Cu braid | — | Woven over inner sheath | |
| Shield coverage | ≈ 85 | % | Typical | |
| Shielding effectiveness | ≈ 60–70 | dB | At 30–1000 MHz | |
| 05 · Outer Jacket | ||||
| Jacket material | PVC (Type ST) | — | Oil/abrasion resistant | |
| Jacket thickness | ≈ 0.7 | mm | Nominal | |
| Overall finished diameter | ≈ 6.8 | mm | 2-core shielded | |
| Approximate cable mass | ≈ 48 | kg/km | Tinned Cu + PVC + braid | |
| Mass per 100 m | ≈ 4.8 | kg/100 m | For coil loading | |
| 06 · Electrical | ||||
| Rated voltage | 300/500 | V | Control circuits | |
| Test voltage (AC) | 2000 | V AC | 5 min routine | |
| DC resistance @ 20 °C | ≤ 26.0 | Ω/km | Per GB/T 3956 | |
| Ampacity (free air) | ≈ 6–8 | A | 0.75 mm², 70 °C | |
| Capacitance (core-core) | ≈ 120 | pF/m | At 1 kHz | |
| Characteristic impedance | ≈ 100–120 | Ω | At high frequency | |
| 07 · Thermal & Mechanical | ||||
| Max continuous conductor temp. | 70 | °C | Normal service | |
| Short-circuit temp. (≤5 s) | 160 | °C | Copper limit | |
| Min. ambient temp. | -15 | °C | Fixed installation | |
| Min. bending radius | ≥ 6 × OD ≈ 41 | mm | Fixed; 12× for moving | |
| Halogen content | Halogen-containing | — | PVC compound | |
| 08 · Flame & Environment | ||||
| Flame retardancy | IEC 60332-1 | — | Single vertical flame | |
| Oil resistance | Good | — | Type ST PVC | |
| UV resistance | Limited | — | Indoor / conduit use | |
| ROHS / REACH | Compliant | — | EU 2011/65/EU | |
Cable Test Parameters
| Test Parameters — RVVP 2×0.75 mm² | ||||
| No. | Test Item | Test Condition / Method | Requirement | Type |
| 1 | Conductor DC resistance | GB/T 3956, 20 °C | ≤ 26.0 Ω/km | Routine |
| 2 | AC voltage withstand | 2000 V AC, 5 min | No breakdown | Routine |
| 3 | Insulation resistance | 500 V megohmmeter | ≥ 20 MΩ·km | Routine |
| 4 | Conductor construction | Visual + strand count | 24 × 0.20 mm tinned Cu | Routine |
| 5 | Wall thickness | Micrometer cross-section | Ins. ≈ 0.6 mm; jacket ≈ 0.7 mm | Routine |
| 6 | Dimensional check | Caliper | OD ≈ 6.8 mm | Routine |
| 7 | Print legibility | Visual + rubbing | Marks legible | Routine |
| 8 | Mass per unit length | Weighing | ≈ 48 kg/km | Routine |
| 9 | Appearance | Visual | Smooth, no blisters | Routine |
| 10 | Packing | Visual | Coil/drum, sealed ends, labelled | Routine |
| 11 | Shield coverage | Unwrap + count | ≥ 80% (≈ 85%) | Type |
| 12 | Heat aging test | 7 days at 100 °C | Retention ≥ 70% | Type |
| 13 | Cold bend test | -15 °C, 4 h mandrel | No cracking | Type |
| 14 | Jacket tensile test | Universal tester | Meets GB/T 9330 min. | Type |
| 15 | Flame retardancy | IEC 60332-1 | Self-extinguish | Type |
| 16 | Shielding effectiveness | Triaxial / open-field | ≥ 60 dB at 30–1000 MHz | Type |
Cable Cross Section Structure
| RVVP 2×0.75 mm² — Cross-Section Construction Diagram (Schematic) | |||||
| Layered build-up: tinned Cu Class 5 conductors → PVC insulation → inner PVC sheath → tinned copper braid shield → PVC outer jacket · 300/500 V shielded control cable · signal transmission · EMI/RFI protection · -15~+70 °C | |||||
| No. | Layer | Material / Construction | Nominal Thickness (mm) | Diameter (mm) | Function / Remarks |
| 1 | Conductor (×2) | Tinned annealed copper, Class 5 flexible — 24 × 0.20 mm strands per core | — | ≈ 1.05 (per core) | Signal/power carrying; R ≤ 26.0 Ω/km; tinned for anti-corrosion and solderability |
| 2 | Insulation (per core) | PVC compound (Type SP), extruded over each conductor, colour-coded | ≈ 0.6 | ≈ 2.25 (per insulated core) | Electrical insulation; 300/500 V rated; colour-coded (red/black, blue/white, etc.) |
| 3 | Inner sheath | PVC compound, extruded over the two laid-up cores, round filler | ≈ 0.5 | ≈ 5.0 (before braid) | Round and bed the cores; mechanical protection; bedding for braid |
| 4 | Braid shield | Tinned copper wire braid, ≈ 85% coverage, laid over inner sheath | ≈ 0.35 (effective) | ≈ 5.7 | EMI/RFI shielding; drain path for fault currents; low transfer impedance |
| 5 | Outer jacket | PVC compound (Type ST), black or grey, extruded over braid | ≈ 0.7 | ≈ 6.8 (finished) | Outer mechanical protection; oil-, UV- and abrasion-resistant; printed markings |
| Key Dimensions & Properties (expanded) | |||||
| Finished cable diameter | ≈ 6.8 | mm | 2-core shielded control cable (est.) | ||
| Approximate cable mass | ≈ 48 | kg/km | Tinned Cu + PVC + braid build-up | ||
| Nominal voltage rating | 300/500 | V | Control / signal circuits | ||
| Max continuous conductor temp. | 70 | °C | Normal service | ||
| Min. ambient / installation temp. | -15 | °C | Fixed installation | ||
| DC resistance @ 20 °C | ≤ 26.0 | Ω/km | Class 5 tinned copper, EN 60228 | ||
| Core count × cross-section | 2 × 0.75 | mm² | 2 cores | ||
| Shield coverage | ≈ 85 | % | Tinned copper braid | ||
| Insulation resistance | ≥ 20 | MΩ·km | PVC at 20 °C | ||
| Test voltage (AC) | 2000 V AC / 5 min | — | Routine withstand test | ||
| Flame retardancy | IEC 60332-1 | — | Single vertical flame | ||
| Shielding effectiveness | ≈ 60–70 dB | — | At 30–1000 MHz | ||
| Jacket colour | Black / grey / custom | — | Standard: black | ||
| Mass per 100 m | ≈ 4.8 | kg/100 m | For coil / drum loading | ||
| Reference standard | GB/T 9330 / IEC 60227 / UL 2464 | — | Harmonized control cable | ||
| Schematic — not to exact scale. Finished Ø ≈ 6.8 mm and weight ≈ 48 kg/km from cross-referenced industry samples; conductor stranding 24/0.20 mm per core and braid coverage ≈ 85%. Est. values confirmed against factory type certificate. | |||||
Construction Description
| Construction Description — RVVP 2×0.75 mm² | |||
| Layer-by-layer build-up narrative · 300/500 V shielded control cable · GB/T 9330 / IEC 60227 · tinned copper / PVC insulation / tinned copper braid shield / PVC outer jacket | |||
| 1. Product Identity & Ratings | |||
| RVVP is a Chinese-designation flexible shielded control cable: R = flexible copper conductor, V = PVC insulation, V = PVC outer sheath, P = braided shield. The 2×0.75 version has two 0.75 mm² cores rated 300/500 V. It is built for control and signal circuits where electromagnetic interference must be suppressed. Max conductor temperature 70 °C, operating range -15 to +70 °C. Not for outdoor direct sun without UV protection, and not for mains power distribution. | |||
| 2. Tinned Copper Conductor (×2) | |||
| Each 0.75 mm² core is stranded from 24 tinned annealed copper wires of 0.20 mm in a Class 5 flexible lay-up. The fine stranding gives high flexibility for repeated motion in drag chains and panel wiring. Tinning improves solderability and resists oxidation. Max DC resistance is 26.0 Ω/km at 20 °C per GB/T 3956. Two cores are laid up together, colour-coded for identification (red/black, blue/white). | |||
| 3. PVC Insulation | |||
| Each conductor is extruded with a layer of PVC insulation approximately 0.6 mm thick. The insulation compound is Type SP (soft PVC) formulated for 70 °C continuous service. The insulation provides the primary electrical barrier between the two cores and between cores and earth. Colour coding ensures correct polarity in control panels. Insulation resistance is ≥ 20 MΩ·km at 20 °C. | |||
| 4. Inner Sheath + Braid Shield | |||
| The two insulated cores are laid up with round fillers to form a round cable, then bedded with a 0.5 mm PVC inner sheath. Over this, a tinned copper wire braid is woven at approximately 85% coverage. The braid provides EMI/RFI shielding by diverting interference currents to earth through the shield drain. The shield coverage yields roughly 60–70 dB attenuation at 30–1000 MHz. | |||
| 5. Outer PVC Jacket | |||
| A final 0.7 mm PVC jacket (Type ST) is extruded over the braid, giving the finished cable an outer diameter of approximately 6.8 mm. The jacket is typically black or grey, oil-resistant, abrasion-resistant and flame-retardant. Printed markings along the jacket show product type, cross-section, voltage rating, metre marking and manufacturer name. Install in dry indoor areas or UV-protected conduits. |
8. Factory Advantages
Tinned copper conductor for oxidation resistance and easy soldering. Tinned copper braid shield at ≈ 85% coverage for reliable EMI/RFI protection. Flexible Class 5 stranding dresses easily in control panels and drag chains. Colour-coded cores (red/black) prevent wiring errors. Oil-resistant PVC jacket for industrial cabinet use. 100% routine electrical QA on every production reel. Cut-to-length on coils with sealed ends for reduced waste. Lightweight ≈ 48 kg/km for easy handling. Full traceability from copper rod to finished reel, with MTC and certification support for industrial tenders.
9. Packaging, Storage & Logistics
Cut to customer-specified length on export-grade coils or wooden drums, 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 2×0.75", required length per coil/drum, and core colour preference (red/black, blue/white, etc.). Request the routine AC withstand test record and shield coverage certificate for the specific batch. 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. For drag-chain or continuous-flex applications, specify RVVSP (flexible braid) variant instead.
11. Cable Industry FAQ
Q1: What does RVVP mean? R = flexible copper, V = PVC insulation, V = PVC jacket, P = braided shield. It is a shielded flexible control cable.
Q2: Why a braid shield? The tinned copper braid blocks EMI/RFI from motors, VFDs and welding equipment, preventing signal noise.
Q3: What voltage? 300/500 V for control and signal circuits.
Q4: Is it UV resistant? Limited — use indoors or in UV-protected conduits only.
Q5: DC resistance? ≤ 26.0 Ω/km at 20 °C for 0.75 mm² Class 5 tinned copper.
Q6: Current rating? ≈ 6–8 A in free air; derate in bundles.
Q7: How to ground the shield? Connect braid to earth at one end (or both ends per system design) using a drain wire or shield gland.
Q8: Halogen-free? No — PVC is halogen-containing. Use LSZH for enclosed spaces.
Q9: Temperature range? -15 to +70 °C continuous.
Q10: Packing? Coils or drums with sealed ends, cut to length.
Q11: What proof ships? Routine AC test record + shield coverage certificate + MTC.
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