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313results about "Cable installations on ground" patented technology

Telescopic seabed first-aid repair adapter for bending limiter

The utility model relates to a telescopic seabed emergency repair adapter of a bending limiter, which comprises a first joint, a second joint, a first telescopic cylinder and a second telescopic cylinder, a telescopic structure is arranged between the first telescopic cylinder and the second telescopic cylinder, and the first telescopic cylinder and the second telescopic cylinder are telescopically lapped together. The telescopic structure enables the length of the first telescopic cylinder and the second telescopic cylinder which are lapped together to change; the first connector and the second connector are the same in structure, the first connector is assembled at one end of the first telescopic cylinder, and the second connector is assembled at one end of the second telescopic cylinder. The telescopic seabed first-aid repair adapter of the bending limiter is simple in structure, easy to operate, high in stability and high in adaptability due to the fact that the telescopic length is variable, and when first-aid repair personnel conduct seabed first-aid repair, operation is easy and convenient, consumed time is short, and safety and reliability are achieved.
Owner:SUZHOU GREERUI OCEAN ENG EQUIP CO LTD

Segmented bend restrictor system with full disassembly capability

A segmented bend restrictor system and method for installing such a segmented bend restrictor system that is configured to be disassembled at discrete locations to minimize unnecessary disassembly. The disclosed segmented bend restrictor system offers a more efficient disassembly operation, while also providing an easy and efficient installation operation.
Owner:PANDUIT CORP

A submarine cable anti-scouring device and its construction method

This invention discloses a submarine cable anti-scouring device and its construction method, applicable to the field of submarine cable protection technology. The invention includes a filter layer and a flexible protective layer. The filter layer comprises multiple filter pads arranged sequentially along the axial direction of the submarine cable on the surface of the cable and / or the seabed, with adjacent filter pads overlapping. The flexible protective layer comprises multiple flexible protective pads arranged sequentially along the axial direction of the cable on the filter layer. At least one flexible protective pad is provided at the overlap of any two adjacent filter pads to press the filter layer firmly against the surface of the cable and / or the seabed. This application, through the cooperation of the filter layer and the flexible protective layer, improves the stability of the submarine cable anti-scouring device to reduce inter-segment displacement and possesses adaptive capability to seabed subsidence deformation, effectively enhancing the anti-scouring effect of the submarine cable.
Owner:GUANGDONG POWER GRID CO LTD

Underground shared infrastructure for long-distance power and gas transmission

The invention relates to an underground natural gas supply and power transmission system comprising: - a pipeline (P) for natural gas supply, provided at various intervals with surge arrester devices and stray current drainage devices, - a first pair of HVDC cables (1.1, 1.2) for power transmission, arranged on a same side of the pipeline (P), wherein: - the pipeline (P) and the cables (1.1, 1.2) of the first pair of HVDC cables are parallel to each other and buried underground, the pipeline (P) at a depth (d) in the range of 1.0 m - 1.2 m and the cables (1.1, 1.2) at a depth (d1) in the range of 1.0 m – 1.8 m, - the cables (1.1, 1.2) of the first pair of HVDC cables are arranged, one in respect to the other, at a spacing (c1) in the range of 2 m - 4 m, - the cable (1.1) the nearest to the pipeline (P) is arranged in respect to the pipeline (P) at a distance (g1) in the range of 6 m – 16 m.
Owner:E-INFRA SA

Cable support for electrical construction

The application discloses a cable support for electrical construction and relates to the technical field of cable supports.The cable support comprises a support stand column, a horizontal supporting arm installed on the support stand column, a vertical supporting arm installed on the horizontal supporting arm and an electric telescopic rod arranged on the support stand column.The application places the placing arc plate above the upper area of the ground on both sides of the cable trench, and at this time, the cable can be installed on the flexible rolling wheels on the inner arc surface of the placing arc plate.The flexible rolling wheels can prevent the cable surface from being damaged by abrasion, can enable the cable to be laid at the ground level, can make the installation of the cable safer, can greatly improve the efficiency, can enable multiple cables to be arranged neatly above the ground at one time, can be lowered synchronously, can be arranged more regularly, can limit the radial shaking and twisting of the cables, can prevent the cables from being arched upward during the in-place lowering process and from swinging left and right and being twisted during the lowering process, and can make the cable center line coincide with the support installation reference.
Owner:SHANXI INSTALLATION GRP CO LTD +1

Submarine connection box for submarine power cables

A submarine connection box for connecting a system of submarine power cables, each including at least one submarine power cable core, the submarine connection box including: a casing, the casing having N first openings configured to receive a respective submarine power cable of a first set of N submarine power cables, N being an integer equal to or greater than 1, the casing having K second openings configured to receive a respective submarine power cable of a second set of K submarine power cables, K being an integer greater than 1, a termination box arranged inside the casing, the termination box having a housing including a first group of openings, and a second group of openings, each of the first group of openings being configured to receive a respective submarine power cable core of the first set of N submarine power cables, and each of the second group of openings being configured to receive a respective submarine power cable core of the second set of K submarine power cables, and L sets of connectors arranged in the termination box, L being an integer equal to the number of electrical phases or poles of the system of submarine power cables, wherein for each of the L sets, the connectors are electrically interconnected with each other and configured to connect submarine power cable cores of corresponding electrical phases or poles of the first set of N submarine power cables and the second set of K submarine power cables.
Owner:NKT GMBH & CO KG

System and method for detecting insulation defects in underground power cables

A system (2) for detecting insulation defects in an underground power cable (12) having one or more single conductors (16, 18, 20) surrounded by a conductive shield (22). The system (2) includes one or more external clamp-on sensors (4, 4', 4'', 4''') fastened to the outside of the power cable (12) or positioned in close proximity to the power cable (12). The clamp-on sensors (4, 4', 4'', 4''') are configured to provide two or more current measurements from outside the power cable (12) without being electrically connected to any of the one or more conductors (16, 18, 20) of the power cable (12). The system (2) includes a signal processing unit (50). The sensors (4, 4', 4'', 4''') are configured to detect partial discharge events (6, 6', 6'', 6''', 6''''). The signal processing unit (50) is adapted to use a mathematical statistical model (52) to process the measurements obtained by the sensors (4, 4', 4'', 4''') to identify whether the current measurements are caused by a partial discharge event (6, 6', 6'', 6''', 6'''') caused in a leakage structure (46) of the power cable (12).
Owner:レモニ エーエス

Cable arrangement structure of cable trench

The utility model discloses a cable trench cable arrangement structure, which comprises a placement frame and jacking plates, the placement frame is placed in an external cable trench, a fixed support plate is installed on the upper wall of the placement frame, the jacking plates are slidably installed on the left and right side walls of the fixed support plate, and the jacking plates can be attached to the inner wall of the external cable trench. The side wall of the fixed support plate and the side wall of the jacking plate are each provided with a wire arranging mechanism, each wire arranging mechanism comprises a sliding groove, a sliding block, a fixing ring and a clamping groove, the side walls of the fixed support plate and the jacking plate are each provided with a sliding groove, and the sliding grooves penetrate through the upper walls of the fixed support plate and the jacking plate. When the device is erected, the jacking plates on the two sides of the device are pulled outwards, the jacking plates are attached to the side wall of the cable trench, then the positions of the jacking plates are fixed through the bolts, erecting of the device can be completed, the device is very convenient and rapid, a large number of bolts do not need to be rotated, and the construction progress of the device can be accelerated.
Owner:NINGXIA ELECTRIC POWER CONSTR PROJECT CO LTD

Cable trench structure

The utility model relates to a cable trench structure, and belongs to the technical field of cable installation. According to the utility model, the gravel layer, the fine sand layer and the prefabricated concrete protection plate are arranged around the cable, so that better protection can be provided for the cable, the damage of external force to the cable is effectively reduced, and the service life of the cable is prolonged; the arrangement of the rubble layer and the fine sand layer helps to improve the drainage performance of the cable trench, prevents water accumulation, reduces the risk that the cable is affected with damp, and guarantees the normal operation of the cable. The rubble layer at the bottom of the trench is matched with the plain soil layer, the lime soil layer and the gravel layer at the upper part of the trench, so that the stability of the cable trench structure is improved, larger external force and load can be borne, the influence of ground subsidence on the cable is effectively reduced, and the reliability is relatively high.
Owner:YUNNAN JINGGONG ELECTRICAL ENG CO LTD

Spiral winding protection pipe

The utility model discloses a spiral winding protection pipe which comprises a plurality of spiral pipe bodies, connecting positioning holes are formed in the two ends of each spiral pipe body, and every two adjacent spiral pipe bodies are connected through a connecting positioning rod. The spiral pipe body is hollow, and a spiral gap is formed in the pipe wall; the spiral gaps between every two adjacent spiral pipe bodies correspond to each other end to end. The spiral winding protection pipe has the technical effects and advantages that the spiral winding protection pipe is quick to mount, and a plurality of spiral winding protection pipes can be quickly and conveniently connected.
Owner:SHANGHAI WT CO LTD

Combined cable support structure

The utility model relates to the technical field of cable supports, and provides a combined cable support structure which comprises a mounting rack and a fixing seat, the fixing seat is arranged outside the mounting rack, a connecting assembly is arranged inside the mounting rack and the fixing seat, a cable fixing assembly is arranged outside the fixing seat, and connecting grooves are formed in the surfaces of the two sides of the mounting rack respectively. The two ends of the side surface of the fixing base are each provided with a pair of sleeve plates, and the mounting frame is sleeved with the fixing base through the sleeve plates. According to the technical scheme, the problems that according to the cable support in the prior art, the connecting plate is fixed to the connecting support by inserting the connecting plate into the connecting support and fixing the connecting plate through bolts, and before the bolts are installed, a worker needs to rotate the bolts with one hand and hold and fix the connecting plate with the other hand, so that displacement of the connecting plate can be avoided; the alignment of the side connecting holes and the side slotted holes is influenced, so that the bolts are difficult to install, and the cable laying efficiency is influenced.
Owner:HEBEI GIANT COMMUNICATION EQUIPMENT CO LTD

Cable trench with built-in dehumidification function and construction process and dehumidification method thereof

The invention relates to the field of cable trench facilities, in particular to a cable trench with a built-in dehumidification function and a construction process and a dehumidification method of the cable trench. According to the invention, the S-shaped heating pipeline and the ventilating pipeline are pre-buried and are connected with the blowing device and the control system, and bottom heating evaporation and side wall air supply are combined to realize three-dimensional dehumidification, so that the internal humidity of the cable trench is remarkably reduced, and a dry and safe operation environment is provided for the cable. All functional pipelines and grounding grids are synchronously pre-buried in the civil engineering stage, strict plugging and fixing measures are adopted, the dehumidification function and the main body structure are integrally built, space is saved, and pre-burying precision and later implementation are guaranteed. Real-time humidity monitoring is carried out through the humidity sensor, dehumidification modes of different intensities are automatically started and stopped according to humidity values, intelligent and self-adaptive all-weather operation is achieved, the dehumidification efficiency is high, energy utilization is accurate, and the operation and maintenance cost and the manual operation intensity are greatly reduced.
Owner:WUHAN IRON & STEEL GRP ECHENG IRON & STEEL CO LTD

Marine power conduit interface assembly

In the construction of offshore wind farms, this provides a marine power conduit interface assembly that reduces cable wear when the cable is passed through a socket that penetrates the base. [Solution] The marine power conduit interface assembly has a slide 20 that is slidable within a housing 10. The assembly is locked into the socket of the energy generator by sliding the slide within the housing. The slide has legs 21 that extend axially in grooves formed on the inner surface of the bore 10b of the housing and is connected to a ring 41 that has a flange 44 extending radially outward from the outer surface of the housing. The ring is connected to the legs by fingers 45 that extend radially inward through slots in the housing. By sliding the slide within the housing, the ram block 31 of the locking device can be locked or unlocked in a predetermined position relative to the locking arm 32.
Owner:BALMORAL COMTEC

Line and line for a superconducting electrical connection

The invention relates to a conduit (100) for a superconducting electrical link, forming a unit intended to be connected at its ends for the formation of the superconducting electrical link, comprising: a cryostat (110) forming a double-walled conduit (or PiP for "pipe-in-pipe" in English) comprising a coaxial inner tube (111) and outer tube (112) and a thermal insulator (113) occupying the annular area between the outer tube (112) and the inner tube (111); and a superconducting cable core (105) housed inside the inner tube (111), the superconducting cable core (105) having at room temperature an excess length compared to the length of the cryostat (110) such that in its superconducting state the length of the cable core (105) is greater than or equal to the length of the cryostat (110).
Owner:NEXANS SA +2

Underwater installation method for oversized umbilical cable terminal

The invention relates to an umbilical cable terminal, in particular to an underwater installation method for an oversized umbilical cable terminal, which comprises the following steps: S1, carrying out operation preparation for laying the tail end on a deck; s2, a crane hoists the umbilical cable terminal UTA out of a cabin; s3, enabling the umbilical cable terminal UTA to pass through a cone pulley; s4, hanging the umbilical cable terminal UTA in the moon pool; s5, the tail end of the umbilical cable terminal UTA is lowered in place; according to the method, the umbilical cable terminal UTA is transferred out of a cabin by connecting the crane with the bending limiting device out-of-cabin rigging, and then cone pulley passing operation is carried out under the cooperation of the crane and the pull-back winch; and the load is transferred to the winch from the crane, the winch is connected with the hump rigging on the bending limiting device through the sling reserved on the UTA fixing piece, and finally UTA in-place is completed under the cooperation of the crane, the winch and a ship navigation bridge. The whole construction team is coordinated and matched, most work is completed mechanically through the steps, the operation risk is reduced, and operation can be completed efficiently.
Owner:SHENZHEN OFFSHORE OIL ENG UNDERWATER TECH CO LTD

Novel hydraulic intelligent trench cover plate

The invention discloses a novel hydraulic intelligent trench cover plate which comprises an intelligent sensing assembly used for collecting environmental parameters in a trench. The control decision component is used for receiving the collected data of the intelligent sensing component, analyzing and processing the collected data and generating a control instruction; the execution response component is used for receiving the control instruction and executing a corresponding action; the intelligent sensing assembly and the execution response assembly are electrically connected with the control decision assembly, a combined structure of a direct-push motor and a telescopic mounting frame is adopted, and a novel environment-friendly composite material cover plate which is light in weight and high in pressure resistance is matched, so that remote or local one-key automatic opening and closing of a cover plate main body are achieved, and the automatic opening and closing of the cover plate main body are achieved. And traditional heavy-physical manual operation is completely replaced, and the operation and maintenance labor cost and the labor intensity are greatly reduced.
Owner:GUIZHOU POWER GRID CO LTD

A mobile transformer house and a method of using the same

The application provides a mobile transformer substation and a use method thereof. The mobile transformer substation comprises a transformer substation body with a bottom structure, the surface of the bottom structure is provided with a wire opening corresponding to a cable well, and the mobile transformer substation further comprises a first sealing device, the first sealing device comprises a limiting sleeve one, a sealing assembly one, a connecting assembly and a driving assembly one, the sealing assembly one is driven to linearly move to be close to the cable well, a sealing channel is formed between the sealing assembly one and the cable well, and the sealing property of a connecting position is improved. The application can improve the sealing property of the bottom structure of the transformer substation and solves the problem of poor sealing effect of the traditional structure.
Owner:ZHONGYANG POWER TECH CO LTD

Vibration damping devices for marine risers and submarine cables

This utility model belongs to the technical field of marine oil and gas and power development equipment, and discloses a vibration damping device for marine risers and submarine cables. The device includes a damping cylinder, a positioning component, a support rod, a sleeve half-ring, bolt holes, and bolts. The damping cylinder is rigidly connected to the sleeve half-ring via the support rod and consists of two symmetrical half-cylinder structures, which are bolted together and fitted around the marine riser or submarine cable. The positioning component can be quickly installed and removed, providing reliable axial positioning for the vibration damping device. This utility model achieves efficient vibration reduction based on the synergistic mechanism of added mass efficiency and hydrodynamic damping energy dissipation. It has a simple structure, convenient and diverse installation methods, and is unaffected by ocean current direction or component attitude, making it widely applicable to vibration control of marine pipelines.
Owner:DALIAN UNIV OF TECH

Submarine cable anti-suspension protection and detection device based on optical fiber sound wave vibration sensing

The invention relates to the technical field of submarine cable laying, and discloses a submarine cable anti-suspension protection and detection device based on optical fiber sound wave vibration sensing, and the device monitors the vibration data of a submarine cable in real time through an optical fiber sound wave vibration sensing system, analyzes the vibration characteristics, and precisely judges whether the submarine cable is suspended or not and the suspension length. In an anti-suspension protection structure of the linkage device, two rows of symmetrical bases and inhaul cable mechanisms on the bases are arranged, through the design that one ends of cables are wound around the bases, and the other ends of the cables fix the submarine cables, the cables are tightened to dynamically adjust the tightening degree and the position of the submarine cables so as to improve the suspension state; and finally, the related problems of insufficient linkage of an existing submarine cable fixing device and a fault detection system and the like are solved. The submarine cable suspension detection device has a submarine cable suspension detection function of optical fiber sound wave vibration sensing, a protection device is linked according to a detection result to improve a suspension state, and the problems that an existing submarine cable fixing device and a fault detection system are insufficient in linkage, poor in buffering performance, remarkable in water flow interference, poor in base installation adaptability and incapable of dynamically adjusting the tightening degree are solved.
Owner:ZHEJIANG XIAOCHUAN TECHNOLOGY CO LTD

Bionic submarine cable protection device based on non-Newtonian fluid

The invention relates to the technical field of submarine cable protection, in particular to a bionic submarine cable protection device based on non-Newtonian fluid, which comprises a bending limiting unit, the bending limiting unit comprises a filling layer and a protection layer, and the filling layer is arranged on the inner side of the protection layer; the filling layer is filled with a non-Newtonian fluid filler; and the vortex-induced vibration suppression unit comprises a flexible bionic fin, and the flexible bionic fin is arranged on the outer side of the protective layer and is used for suppressing vortex-induced vibration of the submarine cable. Non-Newtonian fluid is used as a filling medium of the filling layer due to the physical property, and connecting discs are symmetrically arranged at the upper end and the lower end of the protective layer, so that a bending limiting unit similar to a'bamboo joint type 'is formed, self-adaptive matching of the rigidity of the device and a dynamic load borne by the submarine cable is achieved, stepless and smooth transition from'flexibility' to'rigidity 'is achieved, and the service life of the submarine cable is prolonged. And a bending limiting function is realized while a certain bending degree is provided for the submarine cable.
Owner:QINGDAO HAIZHU MARINE TECHNOLOGY CO LTD +1

A precast concrete cable support and cable trench

A precast concrete cable support and cable trench are disclosed. The precast concrete cable support is integrally cast. The precast concrete cable support includes a base, vertical arms, extension arms, and embedded connecting ribs. The base has a first end and a second end opposite to each other along a first direction. The vertical arm is connected to the first end of the base. The extension arms extend along the first direction, and several extension arms are vertically spaced on the side of the vertical arm facing the second end. If any embedded connecting ribs penetrate the vertical arm along a second direction perpendicular to the first direction, cable grooves are provided on the upper surfaces of the extension arms and the base. The precast concrete cable support according to this invention has stable quality, good durability, fewer on-site installation steps, and convenient cable laying, significantly reducing construction time and costs.
Owner:CIMC CONSTRUCTION (TIANJIN) CO LTD +3

A mounting bracket for submarine cables

This invention relates to the field of marine engineering technology, specifically to an installation bracket for submarine cables, comprising a bracket module through which a cable is threaded. The bracket module contains an energy harvesting and storage module, an intelligent sensing and decision-making module, a power execution and actuation module, and a bubble curtain generation and output module. This invention temporarily supports the cable by generating a bubble curtain, achieving "dynamic non-contact" between the cable and the bracket. This completely eliminates the possibility of friction and wear at the physical level, solving a core pain point in the field. It cleverly utilizes ocean currents as an environmental energy source as the system's driving force, eliminating the need for external power supply or frequent recharging. This achieves true energy self-sufficiency and long-term maintenance-free operation. Employing intelligent judgment based on vibration / acoustic emission signals, it achieves a leap from "acting only when there is ocean current" to "acting only when there is wear," greatly improving gas source utilization efficiency, avoiding ineffective actions and energy waste, and significantly extending the maintenance cycle.
Owner:HANGZHOU ZHONGCE CABLE CO LTD

Power cable system, method for cooling a power cable and use of a two-phase heat transfer mechanism

PendingEP4746002A1Cable installations on groundPower cables for overhead application
A power cable system, comprising a power cable, and a cooling device thermally coupled to the power cable, wherein the cooling device comprises an enclosure, wherein a first region of the enclosure is configured to absorb heat from one part of the power cable, wherein a second region of the enclosure is configured to release heat to another part of the power cable, another object or the environment, and wherein the cooling device has a two-phase heat transfer mechanism inside the enclosure for conducting a heat transfer between the first region and the second region.
Owner:NEXANS SA

Compact Reinforced Metallic Tracer Wire Element and Methods of Making Same

The present disclosure relates to a tracer wire element that includes unidirectional fiber strands for use in e.g., micro-duct installations and other small diameter direct-bury applications for detection of underground utility lines or routes.
Owner:NEPTCO INC

Buckle type cable trench cover plate and design method thereof

The invention relates to the technical field of power transformation engineering cable trenches, in particular to a buckle type cable trench cover plate and a design method thereof, and the trench cover plate comprises a top surface, a cantilever edge, a drip groove, a clamping groove, a clamping groove cover, stiffening ribs and steel bars. The novel ultrathin concrete buckle type cable trench cover plate finished product is directly and transversely lapped on the side wall of a cable trench, the top faces of the cover plates face upwards, the cover plates are spliced on the long sides in the cable trench direction, the clamping groove of one cover plate is lapped on the clamping groove of the other cover plate in a covering mode, and a whole is formed. And the clamping groove can play roles in water, oil, wind, sand and fire prevention. After the cover plate is integrally assembled, operation and maintenance personnel and robots can walk on the cover plate conveniently. The problem that the cable trench cover plate is difficult to open frequently on site is solved, the impact resistance and durability of the cable trench cover plate are improved, and local damage or cracks are avoided; the waterproof, oil-proof, fireproof, sand-proof and sand-proof problems of the cable trench are solved, the cable in the trench is effectively protected, and the cable trench has good economic, environmental and social benefits.
Owner:CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP +1

Ventilated hydraulic cable trench cover plate device

The utility model relates to the technical field of cable trench cover plates, in particular to a ventilation type hydraulic cable trench cover plate device. Comprising a protective outer frame and a cable trench cover plate, one end of the cover plate is hinged to the outer frame, and a supporting part is arranged in the outer frame to support the opened cover plate. The supporting part is composed of a first connector, a second connector and a hydraulic supporting rod, and stable supporting and easy releasing of the cover plate are achieved. A supporting frame is arranged on the inner surface of the cover plate to disperse pressure, meanwhile, the structural strength and safety of the cover plate are improved, the protective outer frame comprises an outer frame and a protective plate, and ventilation holes are formed in the protective plate to promote air exchange. The cover plate is connected with the outer frame through hinges, and flexible opening and closing are facilitated. According to the utility model, through the hydraulic supporting rod, the cable trench cover plate can be opened and closed easily and can be supported when a cable trench needs to be ventilated. According to the ventilation type hydraulic cable trench cover plate device, the operation convenience of opening and closing the cover plate is improved, and the ventilation effect is improved.
Owner:HEFEI FENGCHUANG STAINLESS STEEL DECORATION ENG CO LTD

System and method for determining the condition of a subsea circuit

A subsea communication system includes a subsea cable positioned subsea and exposed to water at a subsea pressure and a subsea temperature. A plurality of wires is disposed within the subsea cable, with each wire of the plurality of wires including an insulation layer arranged to inhibit current leakage in response to contact with the water. The system further includes a plurality of non-intrusive current sensors, with each non-intrusive current sensor positioned subsea, coupled to a pair of the wires of the plurality of wires and operable to measure a measured current in the associated pair of wires without affecting the current in the pair of wires. A controller is operable to receive the measured current from each non-intrusive current sensor of the plurality of non-intrusive current sensors and compare the measured current to an expected current to determine an insulating condition of a circuit partially defined by the pair of wires of the plurality of wires.
Owner:SIEMENS ENERGY AS