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Braiding is the interlocking of wires, arn or fiber strands to form, shield, or reinforce a product - ropes, cords, cables, hoses, etc… Today, we will be discussing Braiding as it applies to the shielding of Single-conductor, Multiple-conductor, Twisted pairs or Coaxial cables in solid or stranded variations. These cables can further be described as shielded or unshielded, except for coax, which by definition is always shielded. For the purpose of this presentation, we will be considering only shielded cables.
There are several different types of shields, which can be applied to cables, and each has distinct characteristics, effectiveness and performance criteria. Spiral wire shields are similar to braid but lack the structural integrity. The shield may open up when the cable is twisted or flexed compromising its effectiveness. The flexibility of spiral shield is used widely in audio cables applications such as microphone cable.
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