There are several common shielding methods for cables.
These include:
1. Braided Shield: A woven mesh of fine metal wires, such as copper or aluminum, provides good flexibility and high shielding effectiveness.
2. Foil Shield: A thin layer of metallic foil, such as aluminum, is applied around the conductor or insulation for shielding purposes.
3. Combination Shield: This method combines both braided and foil shields to provide enhanced shielding effectiveness.
4. Spiral Shield: A helically-wrapped metal strip or tape is applied around the conductor or insulation, providing moderate shielding effectiveness.
5. Serve Shield: Several insulated strands of wire are wrapped around the conductor in a helical pattern, enhancing the cable’s shielding effectiveness.
6. Metal Armor: A metal armor layer, usually made of steel or aluminum, is used to shield the cable from electromagnetic interference (EMI).
7. Metal Coaxial Shield: Used in coaxial cables, this shield consists of a metal tube or foil that surrounds the inner conductor, providing excellent shielding against EMI.
8. Foamed Shield: A foam material, such as polyethylene or polypropylene, is used to surround the conductor or insulation with shielding properties.
These shielding methods are commonly used in various applications to protect cables from external electromagnetic interference and ensure signal integrity.