What is a Shielded Cable

　　1.Definition

　　A shielded cable is a type of electrical cable in which the conductor is covered with an additional conductive shielding layer. Its primary purpose is to block external electromagnetic interference (EMI) from entering the conductor, while also preventing internal signals from radiating outward. It typically consists of one or more signal cores, an insulation layer, a shielding layer, and an outer sheath. Shielded cables are widely used in electronics, communications, and power transmission.

　　2.Materials

　　1. Conductor: Usually made of high-purity oxygen-free copper or tinned copper wire, ensuring excellent conductivity.

　　2. Insulation layer: Commonly uses PVC (Polyvinyl Chloride), PE (Polyethylene), or PTFE (Polytetrafluoroethylene), providing electrical isolation.

　　3. Shielding layer: Can be in the form of metal braiding, metal foil, or a composite of both, typically made from copper wire or aluminum foil.

　　4. Outer sheath: Often made of PVC or LSZH (Low Smoke Zero Halogen), offering protection, abrasion resistance, and aging resistance.

　　3.Characteristics

　　• Strong anti-interference performance: The shielding layer effectively reduces electromagnetic coupling, ensuring stable signal transmission.

　　• High signal fidelity: Minimizes external noise interference, maintaining clarity and integrity of data transmission.

　　• Excellent durability: The outer sheath combined with the shielding layer enhances mechanical strength and extends service life.

　　• Wide applicability: Suitable for both low-voltage signal cables and industrial-grade cables.

　　4.Applications

　　• Audio and video transmission: Used in microphone cables, sound system cables, ensuring audio quality without noise interference.

　　• Communication systems: Applied in network cables and data cables, supporting stable high-speed signal transmission.

　　• Industrial control: Common in sensor cables and servo motor control cables, preventing interference from high-power equipment.

　　• Medical equipment: Ensures accuracy of monitoring and diagnostic signals in environments with strict electromagnetic compatibility (EMC) requirements.

　　5.Recommended Stripping Equipment

　　During shielded cable processing, removal of the shielding layer is a critical step. The WG-9650S Shielded Cable Stripping Machine is highly recommended. Key advantages include:

　　• High-precision cutting: Protects the conductor and insulation from damage.

　　• Versatility: Compatible with braided shield, aluminum foil, and other structures.

　　• High automation: Reduces manual labor and improves production efficiency.

　　• Stable performance: Maintains consistent stripping quality even under continuous operation.