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Cable Shielding

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This shielding can be made from braided strands of copper, other metals like aluminum, a spiral of copper tape or a layer of conductive polymer. The purpose of cable shielding is to reduce the noise affecting the cable’s signal and to dampen any electromagnetic radiation that might interfere with other devices. In order to work, the shield must cover all splices in the cable. Read More…

Cable Shielding Cable shielding runs beneath the plastic jacket of a cable and encapsulates the wire or series of wires inside.
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Leading Manufacturers

San Fernando, CA  |  818-764-8222

Spira Manufacturing Corp. offers the most reliable EMI gaskets & shielding for the electrical / electronic industries to meet required EMC/EMI shielding regulations.

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Spira Manufacturing Corporation $$$

Lancaster, NY  |  716-684-7600

Sealing Devices is a leading North American distributor and fabricator of EMI shielding products, including conductive elastomers, Soft-Shield® low closure force gasketing, windows, conductive adhesives, formed-in-place parts, vents and elastomers.

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Sealing Devices Inc. $$$

Tipp City, OH  |  937-667-8484

Established in 1965, Captor Corporation has been an industry leader offering high quality custom EMI filters. Our services use "off the shelf" parts, are faster and more affordable than our competitors. We also specialize in manufacturing low to medium volume jobs of circuit boards and cable harnesses. Contact us today for EMI/RMI filter solutions tailored to meet your specific requirements!

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Captor Corporation $$$

Bethlehem, PA  |  800-576-7325

Seal Science, Inc. (SSI) is an industry leader in design engineering and precision manufacturing of materials and components for critical sealing applications and advanced technology systems. SSI provides cutting edge technological solutions for mechanical and electrical systems; including structural subsystem design, signature management and electromechanical interference (EMI) shielding products. Contact us for more information!

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Seal Science, Inc. $$$

Hackettstown, NJ  |  908-227-6857

East Coast Shielding manufactures and distributes EMI/RFI shielding materials. We offer conductive elastomers, wire, shield strips, wire mesh, air ventilated panels, EMI gaskets and more. Call us today so we can talk one-on-one to ensure that your EMI shielding needs are met.

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East Coast Shielding $$$
placeholder image Spira Manufacturing Corporation Sealing Devices Inc. Captor Corporation Seal Science, Inc. East Coast Shielding

Electromagnetic interference (EMI), also known as radio frequency interference (RFI) can be extremely disruptive to many electronic devices. EMI can degrade or stop the performance of a circuit, rendering an instrument completely useless.

These EMI currents are generated by both natural and man-made sources, like car ignition systems, cell phones, thunder storms, the Sun, and the northern lights. There are two distinct types of electromagnetic interference that produce two different effects. The first type is known as "narrowband" EMI or RFI. Narrowband interference comes from transmissions like radio and TV stations or cell phone signals.

The other type of interference is called "broadband". Broadband interference is caused from unintentional radiation created from things like electric power transmission lines. Cable shielding helps to protect against both types of interference.

Shielded cables are often used in security system applications because they provide protection from power and radio frequency interference. This can drastically reduce the number of false alarms that are triggered.

Microphone cables in PA and recording studios are usually fitted with shielding to prevent interference during recording. Medium and high voltage cables also use copper or aluminum tape shielding to stop any power cable that is touching the ground from discharging electricity upon contact. The cable is grounded in at least two places to prevent shock even when the current is flowing through the shield.

Most cable shielding functions in the same way as a Faraday cage which can be found in electronic devices like mobile phones. A Faraday cage is a metallic cage that encases electrical components to protect from electromagnetic interference.

Cable shielding is essentially doing the exact same thing, only in a different shape because of the various cable sizes and lengths that are manufactured.

Cable Shielding Informational Video