Cable gland assembly

A cable gland assembly for attaching a shielded cable to an enclosure housing wherein the shielded cable comprises a plurality of conductive strands each surrounded by an electrically insulating layer, an inner strength member comprising bundled fibers disposed parallel to the plurality of conductive stands, wherein the plurality of conductive strands and the inner strength member is surrounded by an outer strength member comprising bundled fibers wherein the plurality of conductive strands, inner strength member and the outer strength member is surrounded by a cable shielding layer comprising a cylindrical tube of braided metal material wherein the cable shielding layer is surrounded by an electrically insulating cable sheath comprising:

• a cable gland housing formed by an annular wall surrounding a hollow cavity wherein the annular wall includes an inside surface facing the hollow cavity and an outside surface radially opposed to the inside surface, wherein a first end of the annular wall is configured to mechanically interface with the enclosure housing through a housing aperture and wherein a second end of the annular wall is configured to mechanically interface with a first terminal end of the shielded cable, wherein a first aperture defined by the inside surface at the first end provides access from the hollow cavity into the enclosure housing through the housing aperture and a second aperture defined by the inside surface at the second end provides access for receiving a first terminal end of the shielded cable into the hollow cavity;
• wherein a portion of the cable sheath is stripped from the first terminal end to expose the cable shielding layer inside the hollow cavity and wherein a portion of the cable shielding layer is stripped from the first terminal end to leave a length of the cable shielding layer exposed and flayed radially outward inside the hollow cavity and to leave a length of the outer strength member and a length of the inner strength member flayed radially outward inside the hollow cavity;
• a weather gasket comprising an annular ring disposed inside the hollow cavity between the cable sheath and the inside surface proximate to the second aperture, wherein the weather gasket is configured to apply a radially inwardly directed compression force against the cable sheath when the weather gasket is compressed between the inside surface and the cable sheath;
• a cable shield pressure ring comprising an annular ring installed inside the hollow cavity between the at least one conductive strand and the flayed out cable shielding layer wherein the cable shield pressure ring is configured to apply an expansion force directed radially outward from a central axis of the annular ring wherein the expansion force directed radially outward acts on the flayed out cable shielding layer forcing the flayed out cable shielding layer into mating contact with the inside surface;
• a first environmental molding material disposed inside the hollow cavity to substantially fill annular space surrounding the cable sheath between the weather gasket and a trim line of the cable sheath wherein the first environmental molding material comprises a material that bonds to the cable sheath and bonds to the inside surface;
• a second environmental molding material disposed inside the hollow cavity to substantially fill annular space extending from the trim line to the first aperture wherein the second environmental molding material comprises a material that bonds to the surfaces of the cable shield pressure ring, bonds to the cable shielding layer, bonds to fibers of the inner strength member and to the fibers of the outer strength member and bonds to the inside surface;
• an outer molding formed to fit over the outside surface between the housing aperture and the second end wherein the outer molding comprises one of a thermoplastic and a thermoset material;
• wherein the first end of the annular wall is configured to mechanically interface with the housing aperture by threaded engagement and wherein the annular wall comprises aluminum.