98 results about "Overhead cable" patented technology

The utility model discloses a guide cylinder structure adopting a blasting deicing mode, and relates to the technical field of blasting deicing, a detonation filler is arranged in a blasting guide cylinder, an electric ignition structure is provided with an ignition structure corresponding to the detonation filler, and a lower buffer protection pad is installed at the position, corresponding to a blasting assembly, of a lower clamping frame. And a V-shaped groove is formed in the lower buffer protection pad. According to the blasting deicing principle, based on a high-strength blasting guide cylinder, impact force instantly released during combustion of detonation filler serves as source power for vibration deicing of the overhead cable, a lower buffering protection pad serves as a primary protection structure of the overhead cable, and particularly, a V-shaped groove is obtained through optimization and improvement in the lower buffering protection pad; the blasting guide cylinder is used for fully clamping the overhead cable, and the key point is that a staggered clamping position between the blasting guide cylinder and the overhead cable is used for avoiding direct damage to the overhead cable caused by blasting impact force on one hand, facilitating the separation process between the blasting guide cylinder and the overhead cable on the other hand, and particularly improving the deicing efficiency.

The invention relates to an overhead cable sag adjusting device which comprises a mounting base and sag adjusting assemblies, the sag adjusting assemblies comprise the first sag adjusting assembly, the second sag adjusting assembly and the third sag adjusting assembly, a vertical plate is arranged above the mounting base, the first sag adjusting assembly is arranged in front of the vertical plate, and the third sag adjusting assembly is arranged in front of the vertical plate. The first sag adjusting assembly is longitudinally and slidably connected with the vertical plate; a second sag adjusting assembly is arranged in front of the first sag adjusting assembly, and the second sag adjusting assembly is in longitudinal lifting connection with the first sag adjusting assembly; a transverse plate is installed at the bottom of the first sag adjusting assembly, follow-up sag adjusting assemblies are arranged on the two sides of the upper portion of the transverse plate, and cable pushing assemblies and third sag adjusting assemblies are arranged above the follow-up sag adjusting assemblies. The device has the advantages of being reasonable in structure, capable of improving working efficiency, time-saving, labor-saving, high in error-tolerant rate, convenient to operate and good in safety.

The invention relates to the technical field of overhead cables, in particular to an overhead conductor cable with a split type diversion mechanism, which comprises a cable body, and the cable body comprises a conductor, a conductor shield, an insulator, an insulation shield, a copper strip shield, a filler, a wrapping tape, an inner sheath, an armor and an outer sheath from inside to outside. According to the overhead conductor cable with the split type flow guide mechanism, the middle flow guide frame is arranged on the armor, and the internal flow guide pipe inserted into the middle flow guide frame is communicated with the split type flow guide mechanism; according to the split type diversion mechanism, diversion nozzles on two sides are inserted into lateral openings of an internal diversion pipe to form a circulating flow channel on a cable body, so that the heat dissipation performance in the cable can be greatly improved, and the cable can stably and efficiently run for a long time; the plurality of annular assembling grooves are formed in the outer side of the outer sheath, the split type flow guide mechanisms are installed on the annular assembling grooves to be fixed to the cable, splicing can be carried out in the later period, and the installation mode is simple and rapid.

The embodiment of the application discloses an overhead cable fault prediction system, which comprises: a parameter calculation module configured to acquire first overhead cable images and second overhead cable images collected at different times, identify cable bending degrees in the first overhead cable images and the second overhead cable images, and obtain first bending parameters and second bending parameters; a scale determination module configured to determine a bending change scale of the cable based on the first bending parameters and the second bending parameters; and a fault result prediction module configured to obtain cable fault prediction parameters based on the bending change scale and time data of the different times, and predict cable faults based on the cable fault prediction parameters. The scheme solves the problem that most schemes in the prior art can only perform fault monitoring but cannot achieve efficient fault prediction, and provides a feasible scheme to realize prediction of cable faults.

This utility model relates to the field of power transmission technology, specifically to an aluminum core cross-linked polyethylene insulated overhead cable, comprising four cable cores, a fixing structure, a protective layer, several raised rings, and a positioning component. The four cable cores are arranged in a ring, the fixing structure covers the outside of the four cable cores, the protective layer covers the outside of the fixing structure, the raised rings are fixedly connected to the protective layer, and the positioning component is located outside the raised rings. The positioning component includes two fixing rings, a connecting block, and two fixing blocks. The two fixing rings respectively cover the outside of the corresponding raised rings, the two ends of the connecting block are rotatably connected to the two fixing blocks respectively, and the two fixing blocks are fixedly connected to the corresponding fixing blocks respectively. The two fixing blocks are bolted together. Through the above structural design, the problem of unstable installation of the insulation wear-resistant layer and easy slippage of the cable during hoisting in the prior art is solved.

The application provides an overhead cable joint live temperature measuring device and a mounting method, which comprises a surface acoustic wave temperature sensor mounted on the surface of an overhead cable joint through an arc-shaped fixing member and a mounting thimble; a monitoring distribution box, which is provided with a hanger for being connected with a hoop buckle; an insulating rod tool, which comprises an insulating rod main body and a threaded hole arranged on the top of the insulating rod main body, and the threaded hole can alternatively connect a sensor mounting bracket or a distribution box mounting bracket, so as to respectively realize the mounting of the sensor on the overhead cable joint and the mounting of the monitoring distribution box on a tower pole supporting the overhead cable in a live state; the surface acoustic wave temperature sensor realizes passive temperature collection through a reflection delay line structure, and transmits temperature information to the monitoring distribution box through a radio frequency signal of a unique frequency band. The application can realize the quick mounting and dismounting of the overhead line joint temperature measurement in a live state, and has the advantages of convenient installation and strong system independence.

The application relates to the technical field of cable vibration prevention, and discloses an overhead cable vibration prevention clamp with self-adaptive lining, which comprises a sleeve, a shell connected to the outside of the sleeve, an arc piece movably arranged in the shell, an elastic lining piece installed on one side of the arc piece, a plug rod installed on the other side of the arc piece, the plug rod being slidably inserted into the side of the shell, a traction rope connected to the end of the plug rod, a cylinder inserted into the side of the shell, a winding bolt threadedly connected to the side of the cylinder, and the traction rope being connected to the shell at one end and connected to the winding bolt through the shell and the cylinder at the other end. The elastic lining piece can buffer the rigid contact of the cable, reduce cable stress concentration, prolong the service life of the cable, automatically adjust the clamping force of the elastic lining piece, automatically adapt to the dynamic change of the cable to suppress the vibration of the cable, reduce the fatigue damage risk of the cable caused by wind vibration and dancing, and improve the vibration prevention effect of the overhead cable vibration prevention clamp.

The invention provides an aerial cable positioning and coiling length identification method and device, and relates to the technical field of data processing, infrastructure and communication testing. The method comprises the following steps: determining a plurality of sampling points of the overhead cable, and obtaining a vibration signal spectrum of each sampling point; determining a plurality of abnormal signals in the vibration signal spectrum, and dynamically filtering the vibration signal spectrum according to the time interval variance of the adjacent abnormal signals to obtain a target signal sequence; performing spatial distribution extraction and kernel function convolution optimization on the target signal sequence, and determining an initial estimation position of the overhead cable; and positioning the overhead cable according to the initial estimation position, and identifying the coiling length of the overhead cable according to the target signal sequence. The method can adapt to a complex noise environment, the positioning and coiling length of the overhead cable can be accurately identified, the digital intelligent management and control level of overhead cable resources is improved, and the operation and maintenance efficiency is improved.

The application belongs to the technical field of cable installation equipment, and particularly relates to a bearing type overhead cable installation equipment, which comprises a plurality of clamping discs connected in an up-down mode, a supporting rod installed on the top of the clamping disc, and a cable clamp installed on the top end of the supporting rod. The clamping disc is composed of two clamping plates which are in butt joint with each other. A telescopic connecting rod is arranged between the adjacent clamping discs in an up-down mode. A locking bolt for fixation is symmetrically arranged at one end of the clamping disc. The top of the uppermost clamping disc is provided with the supporting rod. A load-bearing hinge is arranged at the top end of the supporting rod. The supporting rod extends upwards, and the cable clamp is fixed on the load-bearing hinge. The multi-point fixation structure of the plurality of clamping discs uniformly disperses the cable load on the layered folds of the transformer bushing, avoids the downward pulling force / lateral pulling force formed by the cable dead weight and external force from directly acting on the bushing terminal, significantly reduces the risk of bushing sealing failure, insulation damage and fracture, and solves the core problem of mechanical stress concentration in the traditional installation mode.

The utility model relates to a live cleaning device for overhead cables, and belongs to the technical field of power cable cleaning tools. Comprising a base, symmetrical sliding assemblies are fixedly connected to one side of the upper end of the base, and symmetrical cleaning assemblies are fixedly connected to the other side of the upper end of the base; the cleaning assembly comprises a motor, a rotating shaft, a cleaning hook, a spring and a push plate, the motor is fixedly connected with the upper end of the base, the rotating shaft is connected with an output shaft of the motor, the cleaning hook is fixedly connected to one end of the rotating shaft, the spring is fixedly connected to the inner side of the cleaning hook, and the push plate is fixedly connected with one end of the spring. The cleaning assembly is arranged to clean the cable, the cleaning hook can directly hook out sundries, the cleaning effect is good, and the cable is not prone to being damaged; the micro motor is arranged to drive the pulley to slide on the cable, so that danger and inconvenience caused by manual pulling of the device are avoided.

The invention discloses an aerial cable line loss intelligent detection system and method based on an unmanned aerial vehicle, and relates to the technical field of electric power inspection. The problems that a traditional line loss detection system lacks comprehensive perception ability to a complex environment and cannot adaptively switch a flight detection mode and a close-range attachment detection mode are solved. Comprising an unmanned aerial vehicle body, a cable acquisition module, a line loss intelligent detection module, a data processing module and an unmanned aerial vehicle control module, a flight detection mode and a hanging detection mode can be intelligently switched, a multi-mode sensor is arranged, and combined acquisition and analysis of cable images, sound waves and magnetic induction data are achieved; abnormal points are extracted through algorithms such as image edges, thermal aberration, spectrum features and magnetic field disturbance, adaptive correction is performed in combination with the environment drift degree for fusion judgment, line loss grade classification and multi-source detection report output are achieved, and the detection precision, safety and environment adaptive capacity are effectively improved.

1. Name of the product in this design: Protective device for bare conductors of overhead cables. 2. Purpose of this design: For the protection of overhead cables. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention relates to the field of overhead cable technology and discloses a lightweight and wear-resistant overhead cable, comprising a cable body and a vibration mechanism installed on the outside of the cable body for de-icing when ice forms on the cable body surface. The vibration mechanism includes a fixed ring installed on the outside of the cable body, with a vibration component rotatably mounted on its outer circumference; and a heating wire installed inside the cable body for heating its surface. The fixed ring is made of a thermally conductive material. This invention uses a heating wire to heat the cable body surface to melt accumulated snow, preventing snow from damaging the cable body. The rotating and fixed rings then vibrate the cable body to shake off residual snow, improving the snow removal effect.

The utility model discloses a cable cleaning device for municipal engineering relates to cable cleaning technical field, including cleaning box, the downside fixed connection of cleaning box has dust collection box, the front and back both sides center position of cleaning box all are fixedly installed with push rod, and the output of push rod penetrates the outside of cleaning box and is fixedly connected with the push board, and the inside of push board is provided with the sliding slot, and the upper and lower sides of push board all are provided with the limiting slot of penetration, and the inside of limiting slot is slidably connected with the sliding rod through the sliding block, and the outside right -hand member of push board is fixedly installed with drive motor, and the output of drive motor penetrates the outside of push board and is fixedly connected with the curved wheel. The utility model discloses a cleaning box, push rod, push board, sliding slot, sliding rod, drive motor, curved wheel, spring and brush can be effectively cleaned to different specifications overhead cable, prevent dust accumulation on the cable surface and form dirt, avoid dirt to cause corrosion or damage to the insulating layer of cable, effectively slow down the aging of line.

The invention discloses an auxiliary tool for mounting and dismounting an overhead cable warning lamp, and relates to the technical field of cable warning lamps, the auxiliary tool comprises a U-shaped base, a spring structure is fixedly mounted in the U-shaped base, a placing frame is fixedly arranged at the output end of the spring structure, and the placing frame is slidably connected with the U-shaped base; the auxiliary tool comprises a U-shaped base, mounting bases are fixedly mounted on the two sides of the outer wall of the U-shaped base, mounting swing arm structures are arranged on the outer sides of the ends of the mounting bases, dismounting swing arm structures are arranged on the inner sides of the ends of the mounting bases, and a warning lamp structure is placed in a placing frame. No matter whether the warning lamp structure is mounted or dismounted, a worker does not need to make contact with the warning lamp structure and the cable, quick mounting and dismounting can be achieved, the reliable mounting and dismounting method that the warning lamp structure is firm after being mounted and disengaged after being touched can be completed, and the working efficiency is greatly improved.

This invention provides a high tensile strength and wear resistance overhead insulated power cable, relating to the field of cable technology. It includes a cable body and a current-stabilizing wing structure installed on the outside of the cable body. The cable body includes an outer sheath layer with a limiting mounting strip. The current-stabilizing wing structure can rotate freely following the natural airflow direction, adaptively conforming to the incoming flow direction. It includes a mounting bracket, a flow-guiding ring, and a wind-fall component. This invention adds an external current-stabilizing wing structure to the traditional insulated cable, breaking the structural limitations of conventional overhead cables that lack active vortex suppression and vibration reduction. The current-stabilizing wing structure can adaptively rotate with the wind direction, matching the complex and ever-changing airflow environment in real time, continuously cutting turbulent airflow and periodic vortices, significantly reducing the frequency of wind-induced vibration and line galloping, reducing material fatigue and structural loss caused by long-term reciprocating oscillation of the cable, and significantly improving the operational stability, environmental adaptability, and long-term service life of overhead transmission lines.

The invention provides an aerial cable aging detection device and method. The aerial cable aging detection device comprises a detection box with a control panel arranged on the front face. Two groups of symmetrical rollers are rotationally arranged in the wire inlet wheel seat, and the wire inlet wheel seat is fixed at the bottom of the rear part of the detection box; the tensioning inflation frame is fixed behind the wire inlet wheel seat, and an inflation control end in the tensioning inflation frame is in magnetic adsorption transmission with the roller; high-pressure air is released to the outer surface layer of the cable penetrating through the tensioning inflation frame through the tensioning inflation frame, a damaged opening of the aerial aging cable with the damaged outer surface layer can be amplified, then the damaged position of the aerial aging cable is elastically measured and marked in cooperation with the surface elastic measuring ring, rapid and high-precision detection of the aerial aging cable and marking of the damaged position can be achieved, and the working efficiency is improved. Meanwhile, the tension bogie pulls the overhead aged cable, tensile damage of the cable can be detected, the cable is wound and conveyed in cooperation with the conical roller, and safety detection of the overhead aged cable can be detected in a multi-step and high-precision mode.

The utility model relates to the technical field of wires and cables, in particular to an overhead semi-insulated cable, which can improve the safety performance and the comprehensive performance of the current-carrying capacity of an overhead cable and reduce the investment of the overhead insulated cable, and is provided with a conductor and an insulating sleeve positioned outside the conductor, and the insulating sleeve is provided with a longitudinal opening so that one part of the conductor is exposed. On the cross section of the cable, the central angle clamped by the exposed part of the conductor is 30-150 degrees, the longitudinal opening can be arranged between two iron towers in a spiral span mode when the cable is installed in an overhead mode, so that Karman vortex street oscillation of an overhead line in wind can be reduced, airflow scrapes through the gap of the opening along a spiral line, centripetal force can be formed, and the cable is prevented from being damaged. Therefore, the effect of stabilizing the electric wire is achieved.

A power cable network architecture provides fault managed power (FMP) signals in a data center. The architecture provides patching connections between feeder lines from power pods and trunk cables within an overhead cable raceway, as well as patching connections between the trunk cables within the overhead cable raceway and drop lines to power distribution units associated with rack-mounted servers throughout the data center. Conductors within the trunk line are larger in diameter, as compared conductors within the feeder and / or drop lines. In one embodiment, the patching connections can occur at patch panels via a port and plug arrangement. In another embodiment, the patching connections can occur at fixtures with insulation displacement connectors.

The application relates to a replaceable optical fiber monitoring cable and a replacement method thereof, and belongs to the technical field of optical fiber monitoring. Step one: when the optical fiber in the monitoring cable needs to be replaced, a part of the outer tube, the stainless steel wire layer and the inner tube at one end of the monitoring unit in the monitoring cable are peeled off in sequence, so that one end of the optical fiber unit to be replaced is exposed; step two: aramid yarn at one end of the exposed optical fiber unit to be replaced is peeled off, and the peeled aramid yarn and aramid yarn in the optical fiber unit to be installed are uniformly wound together, and the two are integrated; step three: the other end of the optical fiber unit to be replaced is uniformly pulled out, and the optical fiber unit to be replaced is uniformly wound on the take-up frame at a constant speed; the optical fiber unit to be installed is uniformly released through the pay-off frame at a constant speed, the optical fiber unit to be installed is pulled and introduced into the monitoring cable, and the replacement of the optical fiber is realized. The application can quickly replace the optical fiber, saves time and effort, and ensures that online monitoring can be continuously carried out during the use of the overhead cable.

A termination device for securing an overhead power cable and a method for securing an overhead power cable. The termination device includes a longitudinally extending sheath having a high tensile modulus, the sheath being configured to receive a strength member of the overhead power cable therein. Upon crimping of a connector body over the strength member, the sheath significantly reduces tensile strain experienced by the strength member and reduces the risk of the strength member breaking.

This invention provides a cable isolation and storage bracket for welding equipment spanning a walkway. The invention includes a portal frame spanning the workshop walkway, with its top exceeding a predetermined height of the walkway. Several cable support arms are mounted on the portal frame. A cable storage module is located on one side of the portal frame, storing redundant cables. The cable storage module includes a vertical support and several horizontally arranged positioning shafts fixed to the vertical support. Limiting baffles are installed at the ends of each support. At least two positioning shafts in the same column form a group, and each redundant cable is wound around the corresponding group of positioning shafts. This invention employs a top-crossing cable structure design, achieving standardized overhead cable laying, and integrates a lateral redundant cable storage module to fix and guide the power lines, control lines, and gas lines of the welding equipment, effectively isolating the cables from the safety passage.

FIELD: power transmission lines.SUBSTANCE: invention relates to a transition point of a cable-overhead power transmission line with a service platform, comprising a support equipped with cross-arms with insulators, adapted for connecting with wires of the overhead power transmission line, and a cable joint, adapted for connecting a cable power transmission line with a wire of the overhead power transmission line for each phase. For this purpose, the service platform is attached to the support and is designed to accommodate primary equipment. The service platform provides the ability to pass through the cable of each phase. At least a portion of the service platform is made using a dielectric material to provide an open circuit around the location for the cable of each phase to pass through the service platform.EFFECT: elimination of a closed magnetic circuit around the cable of each phase, thereby eliminating energy losses, electromagnetic interference and risks to personnel.8 cl, 2 dwg

This utility model relates to the field of overhead cable technology and discloses a wind-resistant overhead cable, including an outer layer, inside which an aluminum-clad steel core reinforcing core layer is fixedly connected. This utility model, through the dual protective structure of the outer layer and the protective shell, and the synergistic effect of the wind-guiding groove, the arc-shaped diverting plate, and the guide plate, effectively changes the direction and speed of wind flow. The wind-guiding groove guides the wind to flow along the groove direction, the arc-shaped diverting plate splits the wind from the middle to both sides, and the guide plate and the wind-guiding groove further disperse the wind force, making the wind force more evenly distributed on the cable surface. This significantly reduces the direct impact and concentrated impact force of wind on the cable, reduces the cable's sway amplitude, avoids severe swaying and deformation of the cable due to excessive wind force in strong wind environments, effectively extends the cable's service life, improves the cable's operational stability and reliability under severe wind conditions, and ensures the continuity and safety of power transmission.

The utility model relates to a self-heating energy-saving type high-voltage aerial cable, which comprises an expanded-diameter lead, the inner-layer semi-conductive shielding layer is coated on the expanded-diameter wire; the insulating layer is coated on the inner semi-conductive shielding layer; the outer semi-conductive shielding layer is coated on the insulating layer; the inner braid layer is made of a heat insulation material and wraps the outer semi-conductive shielding layer; the outer braid layer is made of an electric heating material and wraps the inner braid layer; and the sheath is coated on the outer braid layer. According to the utility model, the heating material and the conductor are separated by the thermal insulation material, and only the sheath is heated without influencing the internal conductor, so that the resistance of the conductor is prevented from rising and the power transmission efficiency is prevented from being influenced.

This invention discloses an anti-icing and snow-resistant overhead insulated power cable applied in the field of cable technology. This solution, through the installation of a snow-clearing sleeve, can be directly activated in low-temperature rainy and snowy weather to maintain the surface temperature of the cable body, thereby effectively inhibiting snow accumulation and ice condensation. For already condensed ice and snow, it can selectively heat the bottom layer, top layer, and axial direction of the ice and snow without interrupting power supply, thus dividing the condensed ice layer into multiple pieces for automatic detachment after heating. This effectively avoids safety hazards caused by ice and snow on overhead cables and maintains stable power operation. Through the installation of a surface-replenishing unit, when the temperature is too low, the contact area between the snow-clearing sleeve and the cable body can be adaptively increased, thus ensuring the cable body is fully wrapped, resulting in better inhibition of ice and snow adhesion. During de-icing, it can also accelerate the melting of ice and snow, reducing the occurrence of rapid re-icing during the melting process.

This invention provides electrical line hardware, such as termination configurations and splices, used with overhead electrical cables, enabling hardware-based interlogging of overhead electrical cables. [Solution] The hardware includes one or more ports for accessing the structural member of an electrical cable so that the interlogging device can be operably coupled to the structural member and to interlogging elements such as optical fibers associated with the structural member. Interlogging may be performed after the overhead electrical cable has been fully strung and secured by the hardware (e.g., secured to a support tower).