Shielded Three-Core Cable is designed for power, signal, and control applications where protection against electromagnetic interference (EMI) and radio frequency interference (RFI) is required. With three insulated copper conductors, aluminum foil or tinned copper braid shielding, and PVC/LSZH protective sheath, it provides stable signal transmission for industrial automation, instrumentation, and electrical control systems.
Why Shielding Matters in Three-Core Cable
Reliable Protection Against Electrical Interference
Shielded Three-Core Cable is designed for environments where electromagnetic interference may affect signal accuracy and equipment performance. The shielding layer helps reduce interference from motors, inverters, power lines, and other electrical devices.
Stable Signal Transmission
The combination of twisted conductors and shielding structure helps maintain signal integrity in control and communication systems, making the cable suitable for PLC, DCS, instrumentation, and automation applications.
Flexible Solutions for Different Environments
Different shielding methods provide different levels of protection. Customers can select aluminum foil shielding for signal-sensitive applications or copper braided shielding for environments requiring stronger mechanical protection and grounding performance.
Cable Structure & Shielding Options
|
Component |
Available Options |
|
Conductor |
Stranded bare copper / tinned copper conductor |
|
Core Number |
Three-core configuration |
|
Insulation Material |
PVC / XLPE / PE |
|
Shielding Layer |
Aluminum foil + drain wire / tinned copper braid |
|
Outer Sheath |
PVC / LSZH |
|
Rated Voltage |
300/500V or 450/750V |
|
Temperature Range |
-20°C to +90°C |
|
Color Coding |
Black, blue, brown, or customized |
Technical Specifications
|
Item |
Description |
|
Rated Voltage |
300/500V or 450/750V |
|
Conductor Material |
Stranded bare copper or tinned copper |
|
Insulation Material |
PVC / XLPE / PE |
|
Shield Type |
Aluminum foil + drain wire / Tinned copper braid |
|
Sheath Material |
PVC / LSZH |
|
Shield Coverage |
≥85% (Braid) / 100% (Foil) |
|
Temperature Rating |
-20°C to +90°C |
Shielding Structure Selection Guide
Choosing the right shielding structure helps improve cable performance in different working environments.
|
Shield Type |
Characteristics |
Recommended Applications |
|
Aluminum Foil Shield |
Provides high shielding coverage with lightweight construction |
Instrumentation, signal transmission, communication systems |
|
Tinned Copper Braid Shield |
Offers better mechanical strength and grounding capability |
Industrial automation, machinery control, electrical equipment |
|
Customized Shielding Structure |
Designed according to project requirements |
Special industrial applications |
Key Features
Excellent EMI/RFI Protection
Shielding layers reduce electromagnetic interference and help maintain reliable signal transmission.
Stable Control Signal Performance
Designed for automation and instrumentation systems where signal accuracy is important.
Flexible Installation
Stranded copper conductors provide flexibility for equipment wiring and complex installation layouts.
Durable Industrial Construction
PVC or LSZH sheath options provide protection against moisture, mechanical stress, and daily environmental exposure.
Typical Applications
Used for:
PLC control systems
DCS systems
Control cabinets
Automated production equipment
Suitable for:
Sensors
Monitoring equipment
Measurement systems
Industrial instruments
Applied in:
Motors
Actuators
Electrical equipment
Machine control systems
Used where reliable signal transmission and interference protection are required.
Standards & Compliance
Shielded Three-Core Cable can be manufactured according to international cable standards:
IEC 60227
IEC 60502
BS 5308
VDE 0812
Compliance documentation available:
RoHS compliance
REACH compliance
Factory inspection reports
Cable test reports according to customer requirements
Quality Control & Testing
Each cable batch is inspected through controlled manufacturing processes:
Copper conductor material inspection
Conductor resistance testing
Insulation thickness measurement
Shield coverage inspection
Shield continuity testing
Voltage withstand testing
Flame retardant testing
Final dimensional and appearance inspection
Third-party inspection services can be arranged according to customer requirements.
Packaging & Logistics
Packed in coils, reels, or export-standard wooden cable drums according to cable size and order quantity.
Cable labels include specification, shielding type, length, and production batch information.
Moisture-resistant packaging protects cables during long-distance transportation.
MOQ: Usually 500–1000 meters per specification, depending on cable structure, conductor size, and customization requirements.
Lead Time: Normally 7–15 working days for standard products; customized cable designs may require additional production time.
Applications
Standards & Compliance
FAQ
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