Signals & Electrical
Shielding
A conductive screen around a cable that helps reject electrical noise.
IN ONE SENTENCE
It protects low-level signals and communications from electromagnetic interference.
In normal English
Shielded cable is common around variable-speed drives, motors, analogue signals and industrial networks. How the shield is terminated matters.
Why would I use it?
Use it in electrically noisy environments or where the communication standard specifies it.
THINK OF IT LIKE…
An umbrella around the signal that keeps electrical interference out.
Related terms
grounding, EMC, twisted pair
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