Definition
A flexible woven sleeve of fine metal wires surrounding an electrical conductor, used to block electromagnetic interference from entering or leaving the wire and to provide a path to ground for stray currents.
Plain English
A mesh of thin metal strands wrapped around a wire to keep electrical noise from getting in or out.
Context Anchor
Seen in aircraft electrical wiring, avionics cables, radio wiring, and shielded ignition or sensor leads.
Derivation
Braided comes from the Old English bregdan, meaning to weave or plait. Shield comes from the Old English scield, a protective cover. Together the term describes a woven protective cover — which is exactly what it is.
Why Pilots Care
Ensures reliable operation of sensitive avionics by blocking electromagnetic interference that could cause navigation or communication errors.
Intuition Check
Do not picture a solid metal cover or armor. A braided shield is usually a flexible woven metal layer that protects against electrical interference, not physical impact.
Example Sentence 1
The mechanic found a frayed braided shield on the magneto lead, which explained the radio static during engine runs.
Example Sentence 2
During preflight inspection, a damaged braided shield on the wiring harness was identified as the source of erratic instrument readings.