A power cord for a leakage current detection and interruption device including two insulated power supply lines, two leakage current detection lines for detecting a leakage current on the power supply lines, and two conductor wires. The two leakage current detection lines and the two conductor wires are electrically insulated from each other along the length of the power cord but are electrically connected in series to form a detection current path of a leakage current detection module. The leakage current detection and interruption device further includes a detection monitoring module, coupled in series to the detection current path, for detecting an open circuit condition in the detection current path. The device further includes a switch module and a drive module, which can cut off power supply in response to a detected leakage current or open circuit condition in the detection current path.

An electric cable for supplying power to aircrafts, rail vehicles, motor vehicles, ships or other devices is a single or multi-conductor cable and includes one or more current conductors with at least one insulation. A single or multi-layer outer casing is distributed over the periphery and is associated with the outwardly protruding reinforcing elements. The reinforcing elements are in the form of cooling ribs protruding preferably over the entire periphery of the cable and enable the surface of the cable to be increased and as a result, improve heat dissipation. The projecting reinforcing elements considerably reduce the risk of burning when the current conductors heat up and also protect the cable against abrasion. The invention also relates to a plug for the electric cable.

A cable assembly includes a cable having a first end and a second end. The cable has an electric conductor and a cooling conduit, each of which extends from the first end to the second end. The cooling conduit is adapted to convey a fluid that cools the electric conductor. The cable assembly includes a leak detection module to detect a leak of the fluid from the cooling conduit. The leak detection module includes a power source to generate an input voltage signal which is applied at a first node contact with the fluid. The leak detection module includes a controller to monitor an output voltage signal at the first node and to detect a leak of the fluid from the cooling conduit based on the output voltage signal.

A power cord for a leakage current detection and interruption device including two insulated power supply lines, two leakage current detection lines for detecting a leakage current on the power supply lines, and two conductor wires. The two leakage current detection lines and the two conductor wires are electrically insulated from each other along the length of the power cord but are electrically connected in series to form a detection current path of a leakage current detection module. The leakage current detection and interruption device further includes a detection monitoring module, coupled in series to the detection current path, for detecting an open circuit condition in the detection current path. The device further includes a switch module and a drive module, which can cut off power supply in response to a detected leakage current or open circuit condition in the detection current path.

A power cord for a leakage current detection and interruption device including two insulated power supply lines, two leakage current detection lines for detecting a leakage current on the power supply lines, and two conductor wires. The two leakage current detection lines and the two conductor wires are electrically insulated from each other along the length of the power cord but are electrically connected in series to form a detection current path of a leakage current detection module. The leakage current detection and interruption device further includes a detection monitoring module, coupled in series to the detection current path, for detecting an open circuit condition in the detection current path. The device further includes a switch module and a drive module, which can cut off power supply in response to a detected leakage current or open circuit condition in the detection current path.

A power supply cord for use with a leakage current detection and interruption device, including at least two power supply lines, at least two insulating layers respectively covering the at least two power supply lines, at least two shield lines respectively covering the at least two insulating layers, and at least one insulating structure covering at least one of the at least two shield lines to electrically insulate the at least two shield lines from each other. By providing the insulating structure outside of at least one of the shield lines, the shield lines of different power supply lines are independent of each other, so that the shield lines can better detect leakage currents in the power supply lines.

An in-vehicle power supply structure, in which a vehicle is divided into a plurality of zones and a power supply hub for connecting an electronic device is provided in each of the zones, includes a break detection wire routed along a power supply wire, for detecting damage to the power supply wire caused by an external force acting on the vehicle by its own damage. Both ends of the break detection wire are connected to power supply hubs placed adjacent to each other.

An in-vehicle power supply structure, in which a vehicle is divided into a plurality of zones and a power supply hub for connecting an electronic device is provided in each of the zones, includes a break detection wire routed along a power supply wire, for detecting damage to the power supply wire caused by an external force acting on the vehicle by its own damage. Both ends of the break detection wire are connected to power supply hubs placed adjacent to each other.

A wiring component with physical quantity sensor is provided with a plurality of electric wires, a physical quantity sensor for detecting a physical quantity of the plurality of electric wires, an electric wire holding member including an intervening portion interposed between the plurality of electric wires, and a holder holding the physical quantity sensor. The electric wire holding member includes a protrusion protruding from the intervening portion in a direction perpendicular to an arrangement direction of the plurality of electric wires, and aligning the holder in longitudinal directions of the plurality of electric wires by the protrusion. The holder includes an electric wire engaging portion being engaged with at least one of the plurality of electric wires.

A multi-core cable includes a heat detection line including a twisted pair wire composed of a pair of heat detecting wires being twisted together, each of which includes a first conductor and a first insulator covering a periphery of the first conductor, a plurality of electric wires spirally twisted around the heat detection line, each of which includes a second conductor and a second insulator covering a periphery of the second conductor, and a sheath covering the heat detection line and the plurality of electric wires together. A melting point of the first insulator is lower than a melting point of the second insulator. The second conductor has a shape in a cross-section perpendicular to a cable longitudinal direction in which a width along a circumferential direction is gradually increased from a radially inward portion to a radially outward portion.