A shielded electric wire includes one metal pipe and one electric wire having a conductor and an insulator. An outer diameter of the conductor at 25° C. is set as a, a coefficient of linear expansion of the conductor is set as α.sub.a, and a temperature difference between a maximum temperature and 25° C. is set as Δt, an outer diameter a′ of the conductor after thermal expansion is a′=a+α.sub.a×a×Δt, and when a wall thickness of the insulator at 25° C. is set as b and a coefficient of linear expansion of the insulator is set as α.sub.b, an insulator wall thickness b′ after thermal expansion is b′=b+α.sub.b×b×Δt, and an inner diameter c of the one metal pipe is set to satisfy c≥a′+2b′.

A terminal module includes a cable, inner conductor terminals, and a positioning member. The cable includes a core, a shield member and a sheath. The core includes a core body portion to be arranged on an inner peripheral side of the sheath and a core extending portion extending from the core body portion and to be arranged closer to a tip of the cable than a tip of the sheath. The shield member includes a shield member body portion to be arranged on an outer peripheral side of the core body portion and arranged on an inner peripheral side of the sheath and a shield member extending portion extending from a tip of the shield member body portion and to be arranged on an outer peripheral side of the core extending portion.

A terminal module includes a cable, inner conductor terminals, and a positioning member. The cable includes a core, a shield member and a sheath. The core includes a core body portion to be arranged on an inner peripheral side of the sheath and a core extending portion extending from the core body portion and to be arranged closer to a tip of the cable than a tip of the sheath. The shield member includes a shield member body portion to be arranged on an outer peripheral side of the core body portion and arranged on an inner peripheral side of the sheath and a shield member extending portion extending from a tip of the shield member body portion and to be arranged on an outer peripheral side of the core extending portion.

A connector 10 includes a plurality of terminals 12, an inner housing 20 for holding the plurality of terminals 12, a tubular outer housing 30 for covering the inner housing 20, and a bolt B1 for fastening the inner housing 20 and the outer housing 30 by being inserted up to the inner housing 20 while being passed through the outer housing 30 from outside of the outer housing 30. The inner housing 20 is formed with a plurality of cavities 22 for respectively accommodating the plurality of terminals 12 and a recess for accommodating the bolt B1, and the plurality of cavities 22 and the recess are partitioned from each other.

A plug connector having a housing and at least four contact elements arranged within the housing to transmit high-frequency signals, wherein two contact elements respectively form a contact element pair, each of which is integrated into an insulating body. In that arrangement, the insulating bodies are each surrounded by a shield.

A plug connector having a housing and at least four contact elements arranged within the housing to transmit high-frequency signals, wherein two contact elements respectively form a contact element pair, each of which is integrated into an insulating body. In that arrangement, the insulating bodies are each surrounded by a shield.

A method for connecting a differential transmission cable, (and a differential transmission cable and an electric device) includes: connecting a pair of conductors for transmitting a differential signal to transceivers; and connecting a second shield provided on the periphery of a first shield via an insulating layer to frame grounds, without electrically connecting anywhere the first shield that is provided on the periphery of the pair of conductors via a dielectric layer.

A method for connecting a differential transmission cable, (and a differential transmission cable and an electric device) includes: connecting a pair of conductors for transmitting a differential signal to transceivers; and connecting a second shield provided on the periphery of a first shield via an insulating layer to frame grounds, without electrically connecting anywhere the first shield that is provided on the periphery of the pair of conductors via a dielectric layer.

A connector is provided to facilitate the connection work of a connection terminal and to enhance the connection reliability. A connector includes an attachment part that includes a terminal stand; a connector main body that includes a connection terminal connected to a cable, the connection terminal being fastened and fixed to the terminal stand in a state in which the connector main body is mounted to the attachment part; a cable shield shell that covers an introduction part for the cable in the connector main body; and a connection part shield shell that covers a fastening area between the connection terminal and the terminal stand so as to accommodate the cable shield shell inside the connection part shield shell.

A connector is provided to facilitate the connection work of a connection terminal and to enhance the connection reliability. A connector includes an attachment part that includes a terminal stand; a connector main body that includes a connection terminal connected to a cable, the connection terminal being fastened and fixed to the terminal stand in a state in which the connector main body is mounted to the attachment part; a cable shield shell that covers an introduction part for the cable in the connector main body; and a connection part shield shell that covers a fastening area between the connection terminal and the terminal stand so as to accommodate the cable shield shell inside the connection part shield shell.