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Understanding Shielded Cable

Authored on: Jan 1, 2008 by Chet Socha

Technical Paper

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Industrial applications such as the factory floor are typically electrically noisy environments. Electrical noise, either radiated or conducted as electromagnetic interference (EMI), can seriously disrupt the proper operation of other equipment. Insulation protects a cable mechanically from scraps and abrasion and environmentally from moisture and spills. But insulation is transparent to electromagnetic energy and offers no protection. Shielding is needed to combat the effects of EMI.
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Googly Posted Dec 2, 2010

A very good paper Chandra

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Googly Posted Dec 2, 2010

What does Googly mean

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agk Posted Dec 3, 2010

Very minimum information provided on this. The graph shows up to 210 MHz and higher frequecncies are not covered. Many interferences and oscillations are from higher frequencies from various terestail transmissions.

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mathman47 Posted Dec 8, 2010

I kept looking for more. Interesting about percent and foil verses braid though. Should go into greater depth about size, type of insulation, etc. Thanks.

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