157 results about "Cable design" patented technology

The invention discloses a BIM-based cable construction method. The method comprises the steps of obtaining BIM model data including a cable design path, a design bending radius and design stress; in the cable laying process, the optical fiber sensors are tightly attached and fixed to the surface of an outer sheath of the cable to be laid, and the optical fiber sensors are continuously distributed in the length direction of the cable; acquiring actual strain distribution data and actual bending radius distribution data of the cable measured by the optical fiber sensor in real time, and performing spatial position correlation comparison with design stress data and design bending radius data in the BIM model; if the actual strain value of any position point exceeds the strain threshold range corresponding to the design stress or the actual bending radius value is smaller than the design bending radius value, it is judged that construction deviation exists in the position point; and generating an adjustment instruction for subsequent cable laying operation based on the position point information with the construction deviation. The cable laying precision and the construction safety can be effectively improved.

The invention belongs to the technical field of power supply cable design and processing, and particularly relates to a high-thermal-conductivity multi-layer structure cable which comprises an insulation shielding wire core, and the insulation shielding wire core comprises a conductor wire core, an insulation layer tightly wrapping the conductor wire core and a shielding layer tightly wrapping the insulation layer. The cable further comprises an outer sheath layer tightly wrapping the insulation shielding wire cores. Wherein modified heat-conducting carbon fibers are dispersed and doped in the outer sheath layer, and stable chemical connection exists between the heat-conducting carbon fibers, so that improvement of the heat conduction effect of the sheath is facilitated; and the insulating layer and the outer sheath layer are formed by melting a resin mixture, directly extruding the resin mixture on the surface of the inner layer and then cooling, so that the contact tightness between the layers is ensured, and the continuity of heat conduction is ensured.

The invention relates to the technical field of power cables, and discloses a manufacturing process of a flame-retardant anti-rat-bite cable, which comprises the following steps: step S1, mixing and granulating in an inert atmosphere; step S2, conductor pretreatment; step S3, carrying out multi-layer co-extrusion coating; s4, gradient cooling and interface strengthening are carried out, and the co-extruded cable passes through a three-section type cooling tank in sequence to be cooled; and after cooling, carrying out electron beam irradiation crosslinking treatment on the cable immediately. The cable comprises a flame-retardant sheath layer, a long-acting rat-bite-proof layer, an insulating layer and a conductor from outside to inside. According to the invention, capsaicin is coated in a gelatin-Arabic gum composite capsule wall through a microencapsulation technology to form a physical isolation barrier, and the structure effectively prevents the contact between the repellent and the external environment, so that even in high-temperature mixing and long-term use, volatile components can be prevented from escaping, and the slow release period of the effective components is ensured to cover the design life of the cable.

The invention relates to a method and a system for calculating a safety coefficient of a main cable of a suspension bridge based on a secondary stress effect. The method comprises the following steps: establishing a finite element model of the bridge; based on the bridge finite element model, determining the most unfavorable stress of the main cable based on the cable structure theory under the action of the most unfavorable live load as the cable unit stress response of the main cable; calculating and evaluating the secondary stress of the main cable according to the secondary stress effect based on the cable unit stress response of the main cable; integrating the stress response of the cable unit and the secondary stress effect, evaluating the most unfavorable stress response of the main cable, and establishing a limit state judgment model by taking the limit strength of the main cable as a failure judgment condition; establishing a probability distribution model of the structure; setting an initial main cable design safety coefficient, and calculating a failure probability and a reliability index of the main cable; iteration is carried out through an inverse reliability method, the number of designed strands of the main cable is changed, and a reliability index is solved. Compared with the prior art, the method has the advantages of more accurate calculation, high engineering practicability and the like.

The invention relates to a high-flame-retardant zero-dripping low-smoke halogen-free photoelectric composite cable for ships and maritime work platforms. The high-flame-retardant zero-dripping low-smoke halogen-free photoelectric composite cable sequentially comprises an electric unit, at least one optical fiber unit, an inner protective layer, an armor layer and an outer protective layer from inside to outside. The outer surface of the electric unit, the outer surface of the optical fiber unit, the inner protective layer and the outer protective layer are all prepared from a flame-retardant sheath material; the flame-retardant sheath material comprises the following components in percentage by mass: 15-35% of EVA (Ethylene Vinyl Acetate); 1%-10% of EPD M; 1% to 10% of LDPE; 1% to 10% of HDPE; 1%-10% of a compatilizer; 0.1%-0.5% of an antioxidant; 20%-50% of an inorganic flame retardant; 5%-10% of a charring agent; the charring agent is prepared by mixing montmorillonite, red phosphorus and melamine cyanurate according to a ratio of 2: 1: 1. The photoelectric composite cable designed by the invention has the characteristics of high flame retardance, low smoke and zero dripping during combustion, no halogen, UV resistance, hydrolysis resistance and the like.

The invention discloses a cable design analysis method and device, electronic equipment and a readable storage medium, and relates to the technical field of cable design analysis, and the method comprises the steps: extracting cable design information from completed photovoltaic engineering design information; performing cable design analysis on the cable design information through the photovoltaic engineering design information to obtain an analysis result; generating a self-adaptive cable adjustment scheme in combination with the photovoltaic engineering design information and the analysis result; and adjusting the cable design information based on the adaptive cable adjustment scheme. The method has the effect of further improving the efficiency of cable design analysis work.

The invention belongs to the technical field of cable design and manufacturing, and particularly relates to a heat insulation type cross-linked polyolefin cable which is provided with a polyolefin sheath layer, the polyolefin sheath layer comprises a polyolefin base material, methyl vinyl silicone rubber raw rubber and a cross-linking agent microcapsule, a peroxide cross-linking agent is coated in the form of the microcapsule, and the cross-linking agent microcapsule is coated with a peroxide cross-linking agent. Vinyl reaction polymerization between the silicone rubber caused by exposure of the cross-linking agent in the middle-early stage of extrusion is effectively reduced; when the extrusion temperature rises to a certain degree, the capsule wall of the microcapsule is greatly molten to effectively release the cross-linking agent, and the cross-linking agent is used for initiating a polyolefin molecular chain and a silicone rubber molecular chain to jointly react and be cross-linked together, so that cross-linking aggregation between silicone rubber in a matrix is effectively reduced; and the thermal insulation contribution of the silicone rubber can be developed, and the overall mechanical property of the sheath can be guaranteed.

The utility model discloses a mechanical shock resistance testing machine for a cable, which comprises a servo motor speed reducer module, a steel wire rope, a linear guide rail, an electric magnet, a counterweight mounting plate sliding table, a counterweight block, a tested cable placement sliding block, a laser displacement sensor, an electric cylinder, a tested cable sample and a withstand voltage tester, the device can be matched with impact hammers of various weights and various free falling body heights, and meets different requirements for mechanical impact resistance in the cable research and development process, so that reliable data is better provided for cable design and manufacturing. According to the utility model, the structure is simple, the cable is in a static state in the use process, the single cable can be tested for multiple times through program setting, and the mechanical shock resistance parameter data of different positions, different heights and different counterweights can be repeatedly tested for multiple times for each cable, so that the contingency existing in the single test is eliminated.

The invention relates to an aided design optimization method and system for cable laying, and relates to the technical field of cable design optimization, and the method comprises the steps: collecting a historical maximum wind speed as a regional wind power feature based on an environment monitoring log of an optical cable overhead region; collecting an erection height mean value, a power pole spacing, a power pole vertical height difference and a power pole type as overhead scene features; on the basis of the scheme fitness evaluation function and a preset number of optical cable hooks, optimizing an optical cable hook layout scheme by taking the maximum coverage distance as a constraint and combining optical cable attribute features, regional wind power features and overhead scene features, and outputting an optimal scheme; and carrying out construction according to the optimal scheme in the optical cable overhead area. The problems that in traditional cable laying, an optical cable hook laying scheme lacks comprehensive consideration of overhead actual environment characteristics and scene characteristics, so that wind power distribution is uneven, the optical cable swing amplitude is large, stability is insufficient, scheme optimization pertinence is poor, and efficiency is low are solved.

The invention relates to the technical field of multi-objective optimization, in particular to a cable electrical performance simulation design method and system based on multi-objective optimization. The method comprises the steps of constructing a low-fidelity model and a high-fidelity model, fusing and evaluating features based on feature sensitivity, and performing staged evaluation by using a non-dominated sorting genetic algorithm. According to the method, exploration is accelerated by using a low-fidelity model at an optimized initial algebra, and hierarchical non-dominated sorting and high-fidelity evaluation refinement solution sets are applied in a convergence stage. Meanwhile, a constraint dominating principle and a dynamic penalty function are integrated, and it is ensured that the generated Pareto optimal solution set is strictly located in a feasible region. The efficiency bottleneck between high-precision simulation and optimization iteration is effectively solved, and the optimization efficiency of complex cable design and the reliability of a final scheme are remarkably improved.

The invention discloses a scheme-stage cable type selection configuration design method, device and equipment, a medium and a program product, and the method comprises the steps: inputting the plant layout information of a target plant and a plant equipment data list set into a pre-constructed cable type selection intelligent agent model for cable type selection configuration, and generating a power distribution unit strategy of each substation, evaluating each power distribution unit strategy, re-performing cable type selection configuration on the substation corresponding to the power distribution unit strategy of which the evaluation score does not reach a preset score threshold value, outputting the power distribution unit strategy of each substation as a cable data list of a target plant area, determining a to-be-adjusted substation in the target plant area based on plant area layout adjustment information, and performing cable type selection configuration on the to-be-adjusted substation according to the determined to-be-adjusted substation. The power distribution unit strategy corresponding to the substation to be adjusted in the cable data list is adjusted, the adjusted cable data list is output based on the adjustment result, complex project scheme changes are effectively coped, project design requirements are accurately met, and cable design rationality and design efficiency are improved.

The invention discloses a cable-stayed bridge inhaul cable design method, device and equipment and a readable storage medium, and relates to the technical field of bridge design, and the method comprises the following steps: obtaining cable-stayed bridge inhaul cable calculation parameters, and constructing an endpoint tangent two-dimensional catenary equation; calculating the length of a catenary according to the cable-stayed bridge cable calculation parameters; calculating a projection vector of a catenary and an included angle between the catenary and an XYZ coordinate axis according to the cable-stayed bridge cable calculation parameters and an end point tangent two-dimensional catenary equation; inputting the projection vector of the catenary and the included angle between the catenary and the XYZ coordinate axis into the tower end conduit geometric model to obtain the length of the cable conduit and the coordinates of the two ends of the cable conduit; outputting the length of the catenary, the projection vector of the catenary, the included angle between the catenary and the XYZ coordinate axis, the length of the cable conduit and the coordinates of the two ends of the cable conduit, and completing the design of the cable-stayed bridge cable. In the cable-stayed bridge cable design, manual calculation is reduced, the design efficiency is improved, and complex manual iterative calculation and the situation that a formula needs to be redesigned due to the change of the shape of a bridge tower are avoided.

The invention discloses water-blocking powder and a preparation method thereof, and a full-dry air-blowing micro cable and a preparation process thereof, and belongs to the technical field of optical cable design, and the water-blocking powder comprises high-water-blocking resin, mineral powder filler, a silane coupling auxiliary agent, metal oxide filler and an aluminate coupling agent. According to the present invention, the silane coupling auxiliary agent is adopted to modify the mineral powder filler, and the aluminate coupling agent is adopted to modify the metal oxide filler, such that the compatibility among the mineral powder filler, the metal oxide and the high water-blocking resin is improved, the uniformity of the water-blocking powder is improved, and the water-blocking powder has strong shell forming property and strong adhesion after spraying. The water-blocking powder is not easy to separate from the surface of the optical fiber after being coated on the optical fiber, so that the formed water-blocking layer is more stable in structure and has a better waterproof effect, and the thickness of the water-blocking layer can be effectively reduced.

This application discloses an optical and electrical composite cable designed for simultaneous installation within pipelines, along with its processing and installation methods. By providing a composite cable with a thin wall and compact overall size, it allows the commercially available thin pipelines ranging from 6 mm to 13 mm in diameter to accommodate both optical and electrical cables in a single pass. This design reduces the amount of pipeline material needed and shortens installation time, while broadening the potential applications for these types of pipelines and improving their utilization. Since the optical and electrical composite cable is installed within a pipeline, it does not require self-supporting overhead structure, which simplifies its design. The thinner optical cable is connected to the thicker electrical cable, allowing the electrical cable to provide necessary tensile strength to the optical cable. This simplified approach to tensile strength ensures that the composite cable meets required strength standards despite its smaller size.

The invention provides a device for monitoring the end positions of a cylinder (10), comprising two cylinder switches (S1, S2), each arranged in an end position of the cylinder (10) and detecting the piston position of the cylinder (10) by means of a single measuring element (15), wherein each cylinder switch (S1) is configured to provide a process value that determines the position of the piston in the respective end position, with a logic unit (µC) that is integrated into one of the two cylinder switches (S1, S2), wherein the cylinder switches (S1, S2) are connected by means of a flexible cable (20), wherein the cable (20) that firmly connects the two cylinder switches (S1, S2) to one another is designed to be long enough to allow the cylinder switches (S1, S2) to be arranged in the end positions, wherein the logic unit (µC) is connected to the other cylinder switch (S1, S2) by means of the cable (20) via a digital communication protocol.

The invention provides an electrical connection device for ship body cable butt joint, the electrical connection device comprises a fixed module and a floating module which is in butt joint with the fixed module in a sleeved mode, an inner conical surface is formed on the inner side wall of the fixed module, an outer conical surface is formed on the outer side wall of the floating module, and connectors are installed on installation plates of the fixed module and the floating module. When the floating module is sleeved into the fixed module, the inner conical surface is attached to the outer conical surface, and the connector can be electrically connected. The connector is provided with a certain displacement, and it is guaranteed that certain relative movement exists between the connector and the cabin body to offset tolerance and installation errors of the cabin body. According to the electrical connection scheme, the segmented cable design is adopted, bridging cable interfaces are integrated in the floating modules, and the construction speed is effectively increased through integral butt joint of the connectors in the modules along with areas. Regional construction needs to be carried out on ships, the cross-regional cable construction workload is reduced, regional integrity is achieved in the real sense, and meanwhile the problem of rapid cable replacement is solved.

The invention provides a wind resistance and shock absorption method for sliding construction of a large-span space truss roof, and relates to the technical field of sliding construction of truss roofs. The construction method comprises the main construction steps of early-stage preparation and design confirmation, anchoring point installation, wind-resistant cable laying and connection, pre-tensioning and adjustment, dynamic monitoring and sliding synchronous adjustment and staged installation and disassembly. Through scientific wind-resistant cable design and fine construction control, the wind-resistant stability in the sliding process of the truss can be effectively improved, and engineering safety and progress are guaranteed.

The on-orbit reusable spiral cable operated by the astronaut comprises a linear section with protection, a spiral section with protection and a free section, the protection linear segment and the protection spiral segment are both in a structural form of a traditional cable and an outer sheath, and the outer sheath is made of an anti-radiation and atomic oxygen prevention material. The protection spiral section is in a spiral winding shape and is in a compressed state, and the length of the cable can be adaptively changed according to scenes; the free section is of a traditional cable structure and is free of an outer sheath. The cable design comprises length and structure design, astronaut man-machine ergonomics design, signal safety design, space environment adaptability design and long service life design, and the use requirements that a space station load is installed by an astronaut and the load goes out of and returns to a cabin can be met.

Technical improvements for performing optical NIRS measurements using an optical sensor are provided, including A) a specific measurement method, B) a specific cable design for such a sensor, C) a light shielding cover to be used with such a sensor, and D) a specific internal light shielding to be used inside the sensor. All of these aspects can be used for improving the accuracy and robustness of the optical measurements to be performed with the sensor.

The utility model relates to a CPCIE board card, a case and electronic equipment. The CPCIE board card provided by the utility model comprises a backboard, a functional board card and an interface board card, the function board card is connected with the first surface of the backboard in an inserted manner, and the interface board card is connected with the second surface of the backboard in an inserted manner. Wherein the first surface of the back plate and the second surface of the back plate are oppositely arranged; the interface board card is used for leading out a functional interface of the functional board card. According to the technical scheme, no connector or cable needs to be additionally designed on the backboard, cable-free connection in the CPCIE framework case can be achieved, the maintainability of the CPCIE framework case is improved, the cable design difficulty is lowered, and the universality and configurability of equipment are improved.

A snow-melting heating cable and its core braiding method are disclosed, comprising a heat-conducting layer, a heat-insulating layer, and an insulating layer. The insulating layer includes an upper insulating layer and a lower insulating layer. The heat-conducting layer is wrapped with the upper insulating layer, the heat-insulating layer is wrapped with the lower insulating layer, and the insulating layer is wrapped with an outer sheath. An arc-shaped clamping plate is fixedly installed in the middle of the inner wall of the outer sheath. The internal gap of the outer sheath is filled with a filling layer. A steel mesh armor layer is wrapped around the outer sheath, and a steel tape armor layer is nested outside the steel mesh armor layer. A limiting block is fixed at the middle position of the top of the cable and is embedded in a fixing component. The cable design in this invention is reasonable, can directionally transfer cable heat, and the breakage of local heating fibers does not affect heat conduction.

The invention provides a visual guiding method and system suitable for aerospace cable assembly installation, and the method comprises the steps: S1, collecting a cable design file, and generating structural data corresponding to each contact; s2, generating a contact layout diagram of the electric connector according to the structured data, and highlighting target contacts needing to be welded currently according to the contact layout diagram and a preset welding sequence; s3, judging whether a confirmation signal that welding of the target contact is completed is received or not in real time, if yes, highlighting the next to-be-welded contact, and executing the step S2 again until the task is finished; and if not, not processing. The method is high in mistake proofing performance, and the probability of mistaken welding and welding omission is greatly reduced in the mode that only one point is displayed at a time.

The invention relates to the technical field of cables, in particular to a low-wind-resistance special cable for suspension wind power generation, which comprises a carbon fiber reinforced core, a TPV (thermoplastic vulcanizate) sheath positioned on the periphery of the carbon fiber reinforced core and a copper conductor positioned on the outer side of the TPV sheath, the outer side of the copper conductor is sleeved with a TPE insulating layer according to the length, and the outer side face of the TPE insulating layer adopts a low-wind-resistance surface pit design. According to the low-wind-resistance special cable for suspension wind power generation, the cable is designed into an upper part and a lower part, a low-altitude part is arranged below 20 meters, in order to ensure the use safety, a conductor + insulation + sheath + carbon fiber reinforced core structure is adopted, a high-altitude part is arranged above 20 meters, a conductor + sheath + carbon fiber reinforced core structure is adopted, and air insulation is adopted between conductors; the cable weight is reduced; the two strands of carbon fiber reinforced cores are combined into one strand and are arranged in the middle of the wire core, so that the tensile force is ensured, and the stability of the structure is ensured.

This application provides a method for optimizing the fire resistance design of cables in energy storage systems, comprising: obtaining flame propagation data from cable bundle laying by simulating a high-temperature thermal shock environment and collecting protective layer collaborative performance indicators to obtain initial fire resistance performance evaluation results; extracting conductor exposure risk-related features from the optimized layer structure design scheme, using a random forest algorithm to analyze potential short-circuit fire paths, and obtaining a risk prediction model; collecting multi-point fire source test feedback from the enhanced fire barrier configuration to determine the flame propagation suppression effect, and obtaining verified cable fire resistance performance indicators; deriving emergency time improvement paths from the final collaborative protection deployment scheme and obtaining actual energy storage system integration data to determine the overall fire barrier morphological stability, and obtaining complete cable design output.

1. Name of the Design Product: Graphical User Interface (Table) for Controlling Electromechanical Equipment for Electronic Devices. 2. Use of the Design Product: An electronic device. 3. Design Key Points of the Design Product: Lies in the graphical user interface on the screen panel. 4. Picture or Photograph that Best Illustrates the Design Key Points: Front View. 5. The hardware part of the product is of conventional design. The rear view, left view, right view, top view and bottom view are omitted. 6. Use of the Graphical User Interface: Construct the operation process of electromechanical equipment by operating icons, buttons, etc. on the interface. 7. Human-Computer Interaction Method of the Graphical User Interface: The interface shown in the front view is the initial interface of the graphical user. Labels and icons can be operated by tapping, etc. For example, by clicking on "Cable Design" in "Medium Voltage System Design", the interface change state diagram will be entered. The "Cable Design" interface will pop up in the interface change state diagram. In this interface, operations are carried out by tapping labels and icons, etc.

The invention relates to a marine safe harbor-returning cable which sequentially comprises a conductor, a fireproof layer, an insulating layer, a heat insulation layer, a shielding layer and a sheath layer from inside to outside. Each fireproof layer is formed by compositely wrapping a mica tape and a glass fiber tape on the surface of the conductor, the number of the fireproof layers is three, and the wrapping directions of every two adjacent layers are different; the fireproof layer is attached to the surface of the conductor through an adhesive, and the adhesive is composed of, by mass, 48%-52% of organic silicon resin, 28%-32% of ceramic zinc borate, 14%-16% of nano silicon dioxide and 4%-6% of a platinum catalyst. The cable designed by the invention can maintain the line integrity for more than 180 minutes under the composite working conditions of flame and vibration spraying at 830 DEG C, and is suitable for key loops of a cruise ship electric propulsion system, emergency lighting, fire-fighting equipment and the like.

The invention provides an optical cable design intelligent drawing system and method based on fusion of multi-source acquisition data. Through combination of the large model processing layer and the core function layer, automatic analysis, association and compliance detection of the multi-source collection data are realized, the work of manually completing verification and compliance detection of the multi-source collection data in the prior art is replaced, and the manual workload is greatly reduced, so that the multi-source collection data verification and compliance detection can be realized in a complex scene, and the multi-source collection data verification and compliance detection efficiency is improved. Automatic processing can be completed based on the combination of the large model processing layer and the core function layer of the system, and the technical effect of improving the completion efficiency and precision is generated due to the reduction of the manual workload.

The present application relates to the technical field of cable, especially to a low wind resistance special cable for suspended wind power generation, comprising a carbon fiber reinforced core, a TPV sheath located at the periphery of the carbon fiber reinforced core and a copper conductor located at the outside of the TPV sheath; a TPE insulation layer is sleeved on the outside of the copper conductor according to the length, and a low wind resistance surface pit design is adopted on the outside surface of the TPE insulation layer. The low wind resistance special cable for suspended wind power generation of the present application designs the cable into two parts, the low altitude part below 20 meters, in order to ensure the safety, adopts the structure of conductor + insulation + sheath + carbon fiber reinforced core, the high altitude part above 20 meters, adopts the structure of conductor + sheath + carbon fiber reinforced core, air insulation is adopted between the conductors, the weight of the cable is reduced; two carbon fiber reinforced cores are combined into one and arranged in the middle of the wire core, the tensile force is ensured and the stability of the structure is ensured.

The utility model belongs to the field of cables, and provides a halogen-free low-smoke environment-friendly control cable for a coal mine, which comprises a plurality of cable cores, a heat insulation layer arranged outside the cable core in the center, a heat insulation strip arranged between the adjacent cable cores and connected with the heat insulation layer, and a shielding layer, an isolation sleeve, an armor layer, a cooling pipe and an outer sheath arranged outside all the cable cores in sequence, each heat insulation strip comprises a plate-shaped radial section, a cylindrical section is arranged at the telecentric end of each plate-shaped radial section, a filling layer is arranged between every two adjacent heat insulation strips, a first mica tape wrapping layer and a second mica tape wrapping layer are arranged between the filling layers and the shielding layer, and a thermoplastic thin-coating flame-retardant layer is arranged between the first mica tape wrapping layer and the second mica tape wrapping layer. The outer sheath is of a colored structure and comprises a plurality of colored layers which are concentrically distributed, and the colors of the adjacent colored layers are different. The cable is reasonable in design, simple in structure, good in heat insulation effect, high in wear resistance, beneficial to cost control and polling difficulty reduction, and suitable for large-scale popularization.

Embodiments of the present application disclose a cable line topology map generation system and method based on a cable design map, the method comprising: when a node position point of an abnormal cable monitoring node reported and associated laying cable identification and node position identification are received, acquiring a cable path design map of a laying cable where the abnormal cable monitoring node is located according to the laying cable identification, determining an identification position point of the abnormal cable monitoring node in the cable path design map according to the node position identification, determining topology map range information based on the node position point, the identification position point and a preset range, determining cable line information based on the identification position point and the cable path design map, and generating a cable line topology map of the laying cable based on the topology map range information and the cable line information. The scheme generates a cable line topology map based on analysis results of abnormal node reported information, can automatically generate a regional cable line topology map when a cable is abnormal, and is more intelligent and more accurate in line path.