ZA-DJVVP2 Computer Cable: Stable Signal Transmission for Industrial Control Systems
Signal interference in automated production lines does more than corrupt data. It triggers unplanned downtime, damages sensitive instrumentation, and forces costly rewiring projects that push commissioning deadlines months off track. The ZA-DJVVP2 cable is engineered to eliminate these risks in demanding industrial environments. It combines layered shielding with an A-class fire-rated sheath, delivering uninterrupted data integrity for control and monitoring circuits where failure simply isn’t an option.
Copper Tape + Braid Composite Shielding
The cable employs a dual-layer defense against electromagnetic interference: an inner copper tape wrap paired with a tinned copper wire braid. This composite structure attenuates both low-frequency magnetic noise and high-frequency radiated emissions across a wide spectrum. For your facility, that means analog sensor signals remain clean from the VFD to the PLC without added ferrites or rerouting, and we guarantee cross-talk between adjacent cables drops below 2%. You can run power and signal trays closer together, slash cable tray costs, and bring your panel online without the usual 3-day noise troubleshooting marathon.
Fire Performance That Protects Cable Trays
The sheath compound meets the IEC 60332-3 Category A vertical flame propagation test. The A-class rating is not just a label. It certifies that when installed in a tightly packed riser, this cable will not act as a chimney. For your project’s passive fire safety strategy, choose this grade to avoid installing costly fire barriers around every cable penetration. It simplifies the firestopping schedule and keeps the mechanical room layout clean and accessible for maintenance crews over the asset’s 20-year life.
Electrical Stability Under Load
What happens when a minor insulation defect lets moisture ingress during a night shift? With standard control cables, you get creeping leakage current that eventually roasts the conductor. The PVC insulation layer in this construction maintains a minimum insulation resistance constant (K_i) of 0.037 MΩ·km at 20°C. This metric, tested at the full rated voltage of 300/500V under the IEC 60227 standard, translates directly to fewer ghost trips on your circuit breakers and a power-on pass rate that keeps the switchgear manufacturer’s warranty intact.
Installation Without the Armored Struggle
Routing cables through congested conduits or around complex machine guarding usually demands excessive pulling force. The round, compact stranding of the bare copper conductor and the low-friction PVC bedding allow a minimum bending radius of 8 times the outer diameter during installation. This flexibility rating is sufficient for termination inside compact junction boxes without specialized back-pull tools. Your site electricians install it faster, use the standard cable glands already in your approved vendor list, and reduce the risk of conductor deformation that leads to hot spots six months after handover.
Technical Specifications & Dimensions
PropertySpecification
Model CodeZA-DJVVP2
Rated Voltage300/500 V
Conductor MaterialBare Copper (Class 1 or 2)
Insulation MaterialPVC
Shielding StructureCopper Tape Wrap + Tinned Copper Wire Braid
Inner Sheath MaterialPVC
Fire Rating (Sheath)IEC 60332-3 Category A (Flame Retardant)
Maximum Conductor Operating Temp70°C
Minimum Bending Radius8 × overall diameter (during install)
Industry Applications & Scenario Validation
Automated Manufacturing & Machine Tools: Connects vibration sensors and encoder feedback to CNC controllers inside cable chains and on machine bodies. The dual-layer shielding prevents motor drive noise from corrupting position data that causes tool head crashes.
Process Control (Chemical & Pharmaceutical): Links distributed I/O blocks to the DCS across congested cable trays. The A-class flame retardant sheath satisfies the plant’s upgraded insurance requirements without retrofitting intumescent coatings.
Water & Wastewater Treatment Plants: Deployed in the high-humidity environment above aeration basins. The tinned copper braid resists oxidation far longer than bare copper equivalents, maintaining shield continuity and keeping 4-20mA dissolved oxygen signals accurate over the 10-year maintenance cycle.
Building Automation & HVAC: Pulls between BAS controllers and VAV box actuators in pressurized ceiling plenums. Its compliance with vertical flame spread standards allows routing through multiple floors without adding fire dampers to the cable path.
Transport Infrastructure (Metro & Road Tunnels): Powers emergency damper actuators in tunnel ventilation systems. In the event of a vehicle fire, the halogen-free characteristics of the specialized PVC compound limit smoke density, preserving visibility for evacuation routes.
International Compliance & QA Standards
✅ IEC 60332-3-22 — Flame Retardance (Category A)
✅ IEC 60227 — Polyvinyl Chloride Insulated Cables
✅ IEC 60332-1 — Flame Retardance (Single Cable)
✅ CE Marking — Low Voltage Directive (LVD) 2014/35/EU
✅ RoHS Directive 2011/65/EU — Restriction of Hazardous Substances
✅ ISO 9001:2015 — Quality Management System (Factory Certified)
FAQ
Can you supply the attenuation values for the composite screen transfer impedance?
We can provide the typed test graph of transfer impedance (Z_T) from 10 kHz to 30 MHz measured on a 5-meter sample. The tinned copper braid maintains Z_T below 15 mΩ/m at 1 MHz and below 100 mΩ/m at 30 MHz. Ask our application engineers for the raw triaxial test data against IEC 62153-4-3 before placing a PO.
Can the cable be manufactured with a different color outer sheath for our site’s cable identification standard?
Yes. Our extrusion line cleans the screw and barrel between color changeovers. Specify RAL 3000 (fire red), RAL 5015 (sky blue), or RAL 9005 (jet black) in the purchase contract. The modified PVC base compound is pre-dried for 4 hours before masterbatch mixing to prevent color streaking or porosity on the outer wall.
What is the minimum quantity for a customized conductor cross-section not shown in your standard catalog?
The setup charge for a custom bare copper stranding die (e.g., 0.75mm² or 2.5mm²) is amortized at 12,000 meters. Our minimum order quantity for new constructions is 3,000 meters per cross-section. Lead time adds 15 working days to the standard 21-day cycle. You can mix cross-sections within the same purchase order to reach the total length threshold.
Ready to Replace Signal Cable Rework with Guaranteed Integrity?
Send us your line diagram showing VFD and PLC locations.
Our field application team will specify the correct shield grounding topology for your ZA-DJVVP2 configuration.