A tension relief for supply lines and a block-like clamping part therefor, which has a lateral surface designed as a clamping surface. The clamping surface of the clamping part is formed at least in one clamping portion by an elastic wall, which is delimited on the side facing away from the clamping surface by a cavity structure, which is formed by additional walls. The clamping part can be variedly used without modification on certain line diameters, in particular in a tension relief of a cable carrier or also in a connector housing.

A line supply arrangement for electrically powered motor vehicles includes an electric line on a support arm above the motor vehicle. A trolley on the support arm positions the electric line such that a free end thereof hangs down from the trolley for connection to the motor vehicle and charging of an energy store. The trolley is movable relative to the support arm in horizontal direction or the support arm is movable and the trolley relative to the support arm in horizontal direction. Arranged on the trolley is a line reel to lower the free end of the electric line to the motor vehicle, and a hose reel is fixed on the support arm for supply and discharge of cooling liquid to and from the electric line. The trolley is movable relative to the hose reel. A heat exchanger is arranged distal to the trolley for cooling the cooling liquid.

A coil spring cassette includes a stator housing part and a rotor housing part that is rotatable relative to the stator housing part about a longitudinal axis. The stator housing part and the rotor housing part together form therebetween a first chamber and a second chamber at respective positions along the longitudinal axis. A first flat cable with a reversal of winding direction is arranged in the first chamber. A second flat cable with a uniform winding direction is arranged in the second chamber.

A monitoring system is proposed for monitoring the state of a cable which is routed through a cable routing device or an energy chain. A monitoring apparatus (10; 20; 30) is provided for this purpose and has an evaluation unit which determines information relating to the state of the cable to be monitored. The invention provides for the monitoring apparatus to comprise a first data communication device (11) with a data communication interface and a second data communication device (12; 12′) with a data communication interface. These devices (11,12) are configured for data communication according to a digital data transmission protocol and are connected by means of the interfaces thereof via the cable (13; I3A; I3B) to be monitored. An evaluation unit is also provided and configured to determine information relating to the state of the cable to be monitored on the basis of a quality feature of the data connection, for example the packet loss rate in the case of a packet-based communication protocol, between the first device (11) and the second device (12; 12′).

A charging device autonomously charges an electric vehicle. The charging device includes: a main body and an arm coupled to the main body. The main body is controllably moveable, and the arm is controllably extendable and retractable in a longitudinal direction. A charging plug is included at a distal end of the arm. The charging plug is controllably moveable and insertable into a charging portal of the electric vehicle. The arm comprises: a rigid chain, the rigid chain being compliant in a first direction from a neutral axis and resistant in an opposite second direction past the neutral axis, or at least one scissor arm.

Provided is a cable carrier apparatus with a power supply function. The apparatus includes a chain unit, where the chain unit includes a bottom plate, a side plate is provided on each of both sides of the bottom plate, a slot is provided on the side plate; a detachable plate is mounted in the slot, the chain unit is provided with a mounting hole and a mounting pillar, where a conductive layer is provided on each of both sides of the side plate of the chain unit, and an insulating layer is attached to an upper side of the conductive layer. In this way, the cable carrier can have a power supply function, and strong electricity and weak electricity are separated so as to reduce interferences.

Provided is a support module for a transmission line sleeve. The support module for the transmission line sleeve includes a plate formed of a flexible material that extends in a longitudinal direction so as to be bent and spread, and a support block coupled along a longitudinal direction of the plate and disposed in plurality adjacently to each other. The support block includes a plurality of lower bodies coupled to the plate at a certain interval, and an upper body coupled to an upper surface of each of the lower bodies so as to form a load supporting portion in which a portion of the upper surface of the lower body is exposed.

A guide device for a cable, in particular for an energy chain, consisting, at least in one region, of laterally opposing wall elements integrally formed from plastic, wherein at least two directly adjacent wall elements have securing means integrally formed on their facing front-side end regions, which securing means cooperate with one another in such a way that a movement of the two directly adjacent wall elements relative to one another in their longitudinal direction can occur over a predetermined limited path.

The cable support module according to an illustrative embodiment of the present invention comprises: a metal plate which is flexible and the bending position varies along the length direction; fixing blocks which are fastened to the metal plate and wrapped around the top surface and bottom surface of the metal plate, and a plurality of fixing blocks are arranged at fixed intervals along the length direction of the metal plate; and connection blocks which have openings on one side surface that expose the accommodation groove therein so as to be fit-coupled to each fixing block together with the metal plate, and a plurality of the connection blocks are arranged in series next to each other so as to be continuously connected such that mutual rotation is possible, wherein the connection blocks can be coupled to each fixing block in a zig-zag from left to right on both sides along the length direction of the metal plate, and can be alternately connected together in a zig-zag along the length direction of the metal plate between the adjacent connection blocks.

Apparatus and methods pertaining to moving a train rig between locations associated with corresponding different wellsites. Equipment carried by the train rig is operable in conjunction with forming wells each extending beneath a corresponding one of the wellsites. An adjustable swing arm mechanically and electrically connected to the train rig comprises a medium-voltage (MV) cable. The adjustable swing arm extends from the train rig to connect the MV cable to one of a plurality of MV electrical hubs each electrically connected to a remote MV electrical power source via, at least, MV electrical lines suspended above the wellsites. A piece of equipment carried by the train rig is energized by MV electrical power delivered via the adjustable swing arm, and then operated in conjunction with the subterranean well formation.