SEALED CABLE ENTRY Russian patent published in 2007 - IPC H01B17/26 H01R13/646 

FIELD: electrical and power engineering.

SUBSTANCE: proposed cable entry that can be used to pass conductors into sealed premises or locations, for instance to connect biaxial cables when specifications require that radio-frequency cable screens should not be in electric contact with sealed entry body, has cylindrical body with flanges welded to its butt-ends and provided with holes wherein mineral-insulation covered and metal-sheathed ninety-core cables are welded, this cable sheath being electrically connected to body flanges. Conductors disposed about mineral-insulation covered central cores of cables form screens and are electrically connected to first screens of lead-in cables. Mineral-insulation covered central cores of cables are connected to those of lead-in cables and conductors of mineral-insulation covered cables around seven central cores form second screen and are connected to second screens of lead-in cables. Each core of double-screen lead-in cable is electrically connected to one mineral-insulation covered central cable conductor. First screen of lead-in cable is connected to six cable conductors disposed around central conductor; second screen is connected to twelve conductors disposed around seven central conductors.

EFFECT: enhanced noise immunity of screened-core lead-in cables in data-transfer radio-frequency band.

1 cl, 1 dwg