KVVP Cable
What is KVVP Cable?
KVVP cable is a specific type of instrumentation and control cable designed for reliable signal transmission in environments susceptible to electromagnetic interference (EMI). The "K" denotes control, "V" stands for PVC insulation, the second "V" indicates PVC sheathing, and "P" signifies the presence of a braided copper shield. This shielding is the cable's defining feature, protecting the internal conductors from external electrical noise and preventing signal leakage, ensuring data integrity and accuracy in sensitive applications.
Primarily used in industrial automation, process control systems, power stations, and computerized monitoring networks, KVVP cables connect sensors, transmitters, actuators, and control panels. They are the backbone of signal transmission where precision is non-negotiable.
Key Features & Advantages of KVVP Cable
- Excellent Shielding Performance: The braided copper shield offers high coverage (typically >80%), effectively suppressing EMI and radio frequency interference (RFI).
- Stability & Accuracy: Ensures stable transmission of analog and digital signals over long distances, minimizing errors in measurement and control loops.
- Flexibility & Durability: Despite the shielding, KVVP cables maintain good flexibility for easier installation in conduits, trays, and cable ducts. The PVC outer sheath provides resistance to abrasion, oils, and mild chemicals.
- Fire Retardancy: Standard PVC compounds offer flame-retardant properties, enhancing safety in industrial settings.
- Cost-Effectiveness: Provides a robust shielding solution at a more economical point compared to some armored or specialized cables, making it a practical choice for many projects.
Technical Specifications & Parameters
Our KVVP cables are manufactured to exacting international standards (such as GB/T 9330, IEC 60502), ensuring consistent quality and performance. Below are the detailed specifications.
Construction Details
| Component | Material | Description |
|---|---|---|
| Conductor | Annealed Bare Copper | Class 2 stranded for flexibility. Available in various gauges. |
| Insulation | PVC (Polyvinyl Chloride) | Color-coded for core identification. Provides electrical isolation. |
| Shield | Braid Shield (Tinned Copper) | Braided coverage ≥ 80%. Effective high and low-frequency noise rejection. |
| Jacket / Sheath | PVC (Polyvinyl Chloride) | Robust outer protection. Available in standard black, gray, or other colors. |
Electrical & Physical Parameters
| Parameter | Typical Value / Range | Conditions / Notes |
|---|---|---|
| Nominal Voltage | 300/500V | Rated voltage U0/U. |
| Test Voltage | 2000V AC | Applied for 5 minutes during testing. |
| Insulation Resistance | ≥ 20 MΩ·km | At 20°C. |
| Temperature Range | -15°C to +70°C | Fixed installation. Short-term max up to +105°C. |
| Bending Radius | ≥ 6 x Cable Diameter | For fixed installation. |
| Shielding Effectiveness | > 60 dB | At 30 MHz, depending on braid density. |
Standard Core Configurations & Ordering Reference
| Number of Cores | Nominal Cross-Sectional Area (mm²) | Approx. Outer Diameter (mm) | Common Application |
|---|---|---|---|
| 2, 4, 6, 8, 10, 12, 14, 16, 18, 19, 24 | 0.75, 1.0, 1.5, 2.5 | Varies from ~6mm to ~20mm | Multi-channel signal transmission, control wiring. |
| 1 pair, 2 pair, 3 pair, 4 pair, 5 pair | 0.75, 1.0, 1.5 | Varies from ~6mm to ~15mm | Twisted pair configurations for differential signals, communication. |
Typical Applications of KVVP Cable
- Connection between DCS/PLC systems and field instrumentation (temperature, pressure, flow sensors).
- Wiring for motor control centers (MCCs), switchgear, and relay circuits.
- Signal transmission in power generation and distribution facilities.
- Building automation systems (BAS) for HVAC, lighting, and security controls.
- Computer room monitoring and data acquisition (SCADA) systems.
- Analog and low-frequency digital communication networks within industrial plants.
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