How Shielding Can Solve Connectivity Challenges

Share this post:
Posted On:
October 25, 2018

How Shielding Can Solve Connectivity Challenges

Shielding protects cable and wire by increasing structural and signal integrity. The three most common cable shields are a foil shield, a box weave or basket weave braid shield, and a spiral shield. Shielding may be the magic layer that could solve your connectivity challenges. Let's look at the specifics.

Shielding Properties

It’s important to know how shielding functions and which works best for the properties needed. Then, you can feel confident that you have the right cable shielding solution for your end application.

Reduce Interference

The most effective shielding against interference is a combination of foil and braid shields. 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

Is your cable affected by electromagnetic interference, a short flex life, or too weak of a structure? Shielding might be just what you need.

Northwire Cable Experts are here to help. Let us partner with you to create the cable and wire solution for your end application.