Cable Shielding

A reliable source for EMI Shielding information and leading EMI Shielding Companies & Manufacturers.

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.

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. We have been providing reliable, cost-effective EMI & RFI shielding solutions for over 30 years, and to this day we continue to provide EMI products with innovation & expertise. Spira is an AS9100 and ISO 9001:2008 certified company.

Request A Quote

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 as well as elastomers, pads and tapes used for managing related thermal applications. The company is ISO 9001:2008 registered.

Request A Quote

Sealing Devices Inc. $$$

Easton, PA  |  610-829-5000

Orbel's design and manufacturing process enables unique engineered solutions for a variety of applications. Orbel offers today's most effective EMI/RFI shielding, photo-etched precision metal parts, precision metal stampings, and electroplated metal foils. Areas of specialization include aerospace, telecommunications, electronics, medical, automotive, and manufacturing. Orbel is ISO 9001-2008 and AS 9001-C Certified. For more information, visit Orbel.com or call 610-829-5000.

Request A Quote

Orbel Corporation $$$

Reedsburg, WI  |  800-482-1941

VTI Vacuum Technologies, Inc. supplies EMI/RFI/ESD shielding and form-in-place gasketing solutions for medical, defense, aerospace and industrial devices. VTI utilizes a vacuum deposition process for selectively shielding plastic electronic enclosures. The company robotically dispenses conductive and environmental form-in-place gaskets for sealing plastic and metal components. VTI is ISO 9001:2008 certified, ITAR compliant and veteran owned small business established in 1993.

Request A Quote

VTI Vacuum Technologies Inc. $$$

Tampa, FL  |  866-832-4364

Providing industries with quality coating services and electronic shielding products, Leader Tech has a variety of capabilities: EMI shielding and EMI gaskets, plus other EMI/RFI shielding products and services. Call us today for all of your shielded assemblies and shielded gasket needs.

Request A Quote

Leader Tech, Inc. $$$
placeholder image Spira Manufacturing Corporation Sealing Devices Inc. Orbel Corporation VTI Vacuum Technologies Inc. Leader Tech, Inc.

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