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Flexible Electrical Conduit with EMI/RFI Shielding

Thu, 02/22/2001 - 3:59am
Electri-Flex Company announces the availability of three types of flexible electrical conduits offering EMI/RFI (electromagnetic and radio frequency interference) shielding. These liquidtight conduits permit traditional wiring solutions in shielding applications, providing an alternative to specialized shielded cable assemblies. They are designed to protect sensitive electronic circuits in applications such as communications, radar, and data transmission. The shielding effectiveness ranges from 126 dB @ 1 MHz to 120 dB @ 1 GHz.

Electri-Flex's EMI/RFI shielding conduit is available in three types for various applications. Type EMS offers a high degree of shielding effectiveness and a temperature rating of – 55 ° C to 105 ° C. It features a flexible cable core constructed of a helically wound interlocked strip of bronze. An all-temperature PVC jacket is then extruded over the core, resulting in a sealed, waterproof raceway when assembled with liquidtight fittings. Type EMSP is identical to EMS, except for the addition of a tinned copper shielding braid under the flexible jacket.

Type LAS provides a UL Listed version. Conforming to UL 360, Type LAS is a flexible steel conduit with a galvanized steel core, over which a tinned copper shielding braid is applied. The outer jacket is flexible PVC with a temperature rating of – 20 ° C to 60 ° C.

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