Shielded Cable
Shielded Cable: The Ultimate Solution for EMI Protection
Shielded cable is an essential component in modern electrical and electronic systems where electromagnetic interference (EMI) needs to be minimized. These specialized cables feature conductive shields that protect signal integrity by preventing external interference and reducing electromagnetic radiation emission.
Key Features of Our Shielded Cable
- Multiple shielding options: foil, braid, or combination
- Available in various conductor materials (copper, tinned copper, aluminum)
- Temperature rating from -40°C to 105°C
- Voltage ratings up to 600V
- Flexible construction for easy installation
- Compliant with international standards (UL, CSA, CE, RoHS)
Technical Specifications
| Parameter | Specification |
|---|---|
| Conductor Size | AWG 24 to AWG 8 |
| Shielding Effectiveness | 85-100 dB (1MHz to 1GHz) |
| Insulation Material | PVC, PE, XLPE, or FEP |
| Jacket Material | PVC, PUR, or TPE |
| Bending Radius | 6x cable diameter (fixed installation) |
| Flame Rating | UL VW-1, FT1, or IEC 60332 |
Applications of Shielded Cable
Shielded cable finds applications in numerous industries including:
- Industrial automation and control systems
- Telecommunications and networking
- Medical equipment
- Audio/video systems
- Military and aerospace
- Automotive electronics
Shielded Cable FAQ
What is the difference between foil and braid shielding in shielded cable?
Foil shielding typically consists of a thin layer of aluminum with a polyester backing that provides 100% coverage of the conductors. It's lightweight and flexible but more susceptible to damage during installation. Braid shielding uses woven copper wires that offer about 70-95% coverage. While less flexible than foil, it provides better mechanical protection and is more durable during repeated flexing.
How do I properly ground shielded cable?
Proper grounding of shielded cable is crucial for effective EMI protection. The shield should be grounded at one end only (usually the source end) to prevent ground loops. Use proper cable glands or shield termination devices that maintain the shield's continuity while providing strain relief. The grounding connection should have low impedance and be connected to a clean ground reference point.
When should I use shielded cable instead of unshielded cable?
Shielded cable should be used in environments with significant electromagnetic interference, when running cables near power lines or motors, in medical or military applications where signal integrity is critical, and when regulations require reduced electromagnetic emissions. If you're experiencing signal quality issues, crosstalk, or data errors in your current installation, switching to shielded cable may solve these problems.
Additional Technical Data
| Shield Type | Coverage | Flexibility | Frequency Range |
|---|---|---|---|
| Foil | 100% | High | Best for high frequencies |
| Braid | 70-95% | Medium | Better for low frequencies |
| Combination | 100% + 70-95% | Medium | Full spectrum coverage |
Our shielded cable products undergo rigorous testing to ensure they meet the highest industry standards for EMI protection and durability. With various configurations available, we can provide the perfect shielded cable solution for your specific application requirements.