How Shielding Can Solve Connectivity Challenges

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October 25th, 2017 - Shielding provides protection to cable and wire by increasing both structural integrity and signal integrity. The primary types of cable shields include a foil shield, a box weave or basket weave braid shield, and a spiral shield. This magic layer might be able to solve all your problems, but you’ll need to know the specifics.

Functions

To understand the true value of shielding it’s important to know the properties it offers. Then, you can feel confident that you have the correct cable solution for your end application’s needs.

Reduce Interference

The most effective shielding against interference is a combination of braid and foil shields. From an electrical standpoint, foil will guard against high frequency noise and a braid will guard against low frequency noise. A combination of the two is ideal for signal integrity.

Increase Flex Life

Foil provides a layer of shielding without adding a lot of weight or cost, but when high flex life is required, it may not be the best material. A spiral shield provides more flexibility, but may have a shorter life span in high flex environments. A box weave, while stiffer, will stay together throughout the flex life of the application due to its interlocking nature.

Act as a Barrier

Tapes, wraps, and separators serve as barriers between a cable’s core components and the outer jacket material so that they do not bond together. Shields protect the integrity of the stranding and increase the resistance to damage, noise, and moisture.

The Options

Each type of material and type of braid brings different properties and strengths to the table. Once you understand what you need in your shielding, find the right material and structure for the job. Configurations to isolate and separate internal components are very customizable.

Foil

  • Protection of components and/or entire core
  • Reduces cross-talk
  • Flexible
  • Lightweight
  • Cost effective
  • 100% coverage
  • EMI Protection

Drain

  • Easy termination
  • Grounding

Braid

  • Superior structural integrity & physical protection
  • Higher flex life
  • Mechanical strength
  • Slow process
  • More costly and difficult to terminate
  • Reduces cross-talk
  • EMI Protection

If your cable is struggling with electromagnetic interference, a short flex life, or too weak of a structure, shielding might be just what you need. If you have questions or want to talk with an expert give us a call at 1 715-294-2121. We are excited to partner with you to create the cable and wire solution you have been looking for.