Academic literature on the topic 'Submerged cable'

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Journal articles on the topic "Submerged cable"

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Sule, S. "SIMPLIFIED EQUATION OF MOTION OF A SUBMERGED OFFSHORE CABLE SUBJECTED TO TWO-DEGREE OF FREEDOM MASS SYSTEMS." Continental J. Engineering Sciences 6, no. 2 (2011): 28–36. https://doi.org/10.5281/zenodo.833929.

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In this paper, a simplified equation of motion is developed to simulate a submerged cable subjected to two degree of freedom using method of influence coefficient. A submerged cable as a continuous system with distributed masses is idealized as a lumped mass system with distributed masses lumped at two chosen points called the nodal points. The lumped masses are assumed to undergo normal mode oscillation at the chosen nodal points. A numerical example is given to illustrate the performance and applicability of the present model. The natural frequencies of the submersed cable generated using th
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Behbahani-Nejad, M., and N. C. Perkins. "Numerical Analysis of Nonlinear Wave Propagation in Elastic Submerged Cables." Journal of Offshore Mechanics and Arctic Engineering 121, no. 2 (1999): 116–25. http://dx.doi.org/10.1115/1.2830075.

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This paper analyzes the coupled nonlinear tangential-normal waves that propagate along underwater cable suspensions. Taken with the recently developed linear theory governing the in-plane structural waves (Behbahani-Nejad and Perkins, 1996) and an analysis of nonlinear out-of-plane waves for submerged cables (Behbahani-Nejad and Perkins, 1997), this investigation contributes further understanding toward a nonlinear three-dimensional theory for wave propagation along fluid-loaded cables. The nonlinearities present in the in-plane model render the cable/fluid model intractable by exact analytica
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Wu, Zhiwen, and Guoxiong Mei. "Dynamic Response Analysis of Cable of Submerged Floating Tunnel under Hydrodynamic Force and Earthquake." Shock and Vibration 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/3670769.

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A simplified analysis model of cable for submerged floating tunnel subjected to parametrically excited vibrations in the ocean environment is proposed in this investigation. The equation of motion of the cable is obtained by a mathematical method utilizing the Euler beam theory and the Galerkin method. The hydrodynamic force induced by earthquake excitations is formulated to simulate real seaquake conditions. The random earthquake excitation in the time domain is formulated by the stochastic phase spectrum method. An analytical model for analyzing the cable for submerged floating tunnel subjec
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Smith, Dallin, and Jamesina Simpson. "On the Possibility of Using ULF/ELF Electromagnetic Waves from Undersea Cables to Detect Airplanes Submerged in the Ocean." Applied Computational Electromagnetics Society 36, no. 5 (2021): 486–95. http://dx.doi.org/10.47037/2020.aces.j.360501.

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The loss of Malaysian Flight on March 8, 2014, and the subsequent lengthy search for the aircraft highlights the need for an effective detection system for locating airplanes that have crashed into the ocean. The goal of this paper is to test the feasibility of detecting submerged airplanes using ultra-low frequency and/or extremely-low frequency electromagnetic signals generated by undersea cables located along the bottom of the ocean. The proposed detection system is tested using three-dimensional finite-difference time-domain (FDTD) modeling of the cable source, ocean water, ground, and sub
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Kamman, James W., and Ronald L. Huston. "Modelling of submerged cable dynamics." Computers & Structures 20, no. 1-3 (1985): 623–29. http://dx.doi.org/10.1016/0045-7949(85)90110-5.

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Won, Deokhee, Jihye Seo, and Seungjun Kim. "HYDRODYNAMIC BEHAVIOR OF SUBMERGED FLOATING BRDIGE WITH SUSPENSION SUPPRORT AFTER CABLE FAILURE." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 62. http://dx.doi.org/10.9753/icce.v37.structures.62.

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Submerged floating tunnels with suspension supports (SFTSS) resemble to suspension bridges on lands, which are installed a number of hangers on the main tower and main cables to support the girder. On the other hand, as the SFTSS installed underwater has to resist the buoyancy and the forces in an offshore environment, the main cable was installed at the bottom of the tunnel body and connected with a hanger. The concept of the SFTSS was first proposed by Won et al (2019, 2022). It was found that the SFTSS was generated itself a tuned mass damper (TMD) effect due to the interaction between the
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An, Yonghui, Yue Zhong, Yanbin Tan, and Jinping Ou. "Experimental and numerical studies on a test method for damage diagnosis of stay cables." Advances in Structural Engineering 20, no. 2 (2016): 245–56. http://dx.doi.org/10.1177/1369433216659927.

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To diagnose the state of stay cables, a vibration-based model-free damage diagnosis method of stay cables using the changes in natural frequencies is further proposed and validated. The structural frequency is rapidly and easily acquired; moreover, it is simple and reliable for damage diagnosis. The frequency would change after the stay cable is damaged, so the frequency change could be used as the damage index. However, the stay cables are very long in long-span cable-stayed bridges, and their frequencies are very small; the frequency change due to small damage of the stay cable would be subm
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Luo, Gang, Xiao Jun Zhou, and Shuang Wang. "Numerical Simulation of Vortex-Induced Vibration of Submerged Floating Tunnel Cable." Applied Mechanics and Materials 256-259 (December 2012): 1352–58. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.1352.

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A two-dimensional RSM turbulence model combined with enhanced wall function method is used to solve Naviar-Stokes equations,and Fourth Order of Runge-Kutta method is embedded in FLUENT’ UDF for Solving vortex-induced vibration equation of the cable of the submerged floating tunnel .The weakly coupled fluid-structure interaction algorithm is applied to solve the vibration equation and Naviar-Stokes equations, respectively,and the structure systems and fluid systems are combined with the lift coefficient, drag coefficient and dynamic mesh technology. The following conclusions: submerged floating
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Luoa, Gang, Jianxun Chen, and Xiaojun Zhou. "Effects of Various Factors on the Viv-Induced Fatigue Damage In The Cable Of Submerged Floating Tunnel." Polish Maritime Research 22, no. 4 (2015): 76–83. http://dx.doi.org/10.1515/pomr-2015-0075.

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Abstract According to the modal superposition method, the vortex vibration procedure of submerged floating tunnel cable was compiled using Matlab, based on the calculated results, the fatigue damage was predicted. The effects of various factors, such as cable density, cable length, and pretension and velocity distribution on vortex induced fatigue damage in the cable were studied. The results show that velocity distribution has more effect on the cable fatigue damage than cable length, cable density and pre-tension. Secondly, cable length has also relatively effect on the cable damage fatigue,
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Čeović, Josip, and Matko Širola. "Medium and Low Voltage Cable Measurements - TD, PD, LIRA." Journal of Energy - Energija 65, no. 1-2 (2022): 24–37. http://dx.doi.org/10.37798/2016651-2125.

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Elmont d.o.o. Krško – We have spread our main scope of the services from electrical maintenance, modifications implementations and quality control to cable testing area. The main reason for expanding our scope was to support Nuclear Power Plant Krško Cable Aging Management program and the world trend of LTE (Life Time Extension) in power plants. Scope of work – We are identifying potential downgraded conditions for safety and operational important cables in special areas (heat, water, radiation). Our main scope is visual control, and testing with analysis. For low voltage cables the main testi
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Books on the topic "Submerged cable"

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Steam Towing on Rivers and Canals: By Means of a Submerged Cable, with a Description of Their Cable System. Creative Media Partners, LLC, 2023.

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Meyer, F. J., and W. Wernigh. Steam Towing on Rivers and Canals: By Means of a Submerged Cable, with a Description of Their Cable System. Franklin Classics Trade Press, 2018.

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Meyer, F. J., and W. Wernigh. Steam Towing on Rivers and Canals: By Means of a Submerged Cable, with a Description of Their Cable System. Creative Media Partners, LLC, 2018.

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Meyer, F. J., and W. Wernigh. Steam Towing on Rivers and Canals: By Means of a Submerged Cable, with a Description of Their Cable System. Franklin Classics Trade Press, 2018.

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Steam Towing On Rivers and Canals: By Means of a Submerged Cable, With a Description of Their Cable System. Franklin Classics, 2018.

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Steam Towing on Rivers and Canals: By Means of a Submerged Cable, with a Description of Their Cable System. Creative Media Partners, LLC, 2023.

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Book chapters on the topic "Submerged cable"

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Weik, Martin H. "submerged cable." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_18468.

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Ma, Zhanxiong, Jaemook Choi, and Hoon Sohn. "Simultaneous displacement and cable force estimation for submerged floating tunnel based on strain and acceleration measurements." In Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability. CRC Press, 2022. http://dx.doi.org/10.1201/9781003322641-133.

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Hafizur Rahman, Md, and Chhavi Gupta. "Nonlinear Static Analysis of a Rectangular Cable Supported Submerged Floating Tunnel (SFT) as an Alternate Crossing for Waterway." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5644-9_72.

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Xiang, Yiqiang, and Keqiang Zhang. "Vibration Behavior Analysis of Anchor Cables in Submerged Floating Tunnel and Its Application." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8049-9_48.

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Li, Chunyan, Zhiwen Wu, Canrong Xie, Xianlong Xu, Xiao Lin Zhao, and Yonghui An. "Experimental Study on Dynamic Response of Submerged Floating Tunnel Moored with Different Materials Cables." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-4569-5_36.

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KAMMAN, JAMES W., and RONALD L. HUSTON. "MODELLING OF SUBMERGED CABLE DYNAMICS." In Advances and Trends in Structures and Dynamics. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-032789-1.50067-7.

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"Benthic Habitats and the Effects of Fishing." In Benthic Habitats and the Effects of Fishing, edited by T. D. Hart and S. S. Heppell. American Fisheries Society, 2005. http://dx.doi.org/10.47886/9781888569605.ch24.

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Marine protected areas are currently being considered along the Oregon coast with the intention of rebuilding stocks. But stakeholders have questioned the effectiveness of reserves and little data exist with regard to marine reserves or the effects of fishing activities on benthic habitat along the Oregon coast. A unique opportunity exists to begin to collect such information because of <em>de facto </em>no-trawl reserves that exist along submerged coastal corridors where trans-oceanic communication cables have been laid across the seafloor. I intend to investigate a cluster of unb
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Shaik, Abdul Shareef, Nasar Thuvanismail, Shiva Krishna Vadlakonda, and Aditya Varma Chekuri. "Dynamic Analysis of A Floating Fish Cage With Different Percentages of Submersion Under Regular Waves." In Recent Experimental and Computational Research in Structural Engineering. Grinrey Publishing, 2023. http://dx.doi.org/10.55084/grinrey/ert/978-81-964105-2-0_2.

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The aquaculture industry is emerging exponentially because the demand for seafood is at its peak and the capture of fish production is reached its saturation point. Aquaculture is classified into nearshore and offshore farming. The nearshore cages are mostly flexible and subjected to calm to moderate sea conditions. Whereas offshore cages are robust and designed to withstand severe sea environmental conditions. The present article describes the hydrodynamic behavior of a semisubmersible square fish cage subjected to regular waves. The square cage is submerged by three different submergences of
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Conference papers on the topic "Submerged cable"

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Kumar Chikkam, Anil, Aaron Ulmer, Nathan Pace, and Mehrooz Zamanzadeh. "Condition Assessment of 66 kV Underground Transmission Lines in Concrete Vaults." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20826.

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Abstract This paper focuses on assessing the condition of steel pipe cable sections within concrete vaults, serving as protective covers for conductors transmitting up to 66,000 volts. To prevent internal corrosion and short circuits, these cables are filled with pressurized oil. However, water accumulation during storms frequently submerges the cables in water in the concrete vaults, presenting significant challenges for external corrosion protection. Through condition assessment, it was determined that the coating on the 6-5/8″ (16.8 cm) diameter steel carrier pipe remained in satisfactory c
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Loomis, Jean, Jaye Falls, and Sarah Mouring. "Measured and Predicted Response of a Submerged Towed Sonar Array to Maneuvering Input." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10222.

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There exists a necessity to increase helicopter pilot's safety during mine countermeasure operations. Models have been developed for scenarios involving a cable that is fully submerged in either air or water, but there has been very little testing when the cable is partially submerged. This change in fluid type along the length of the cable has a significant impact on the stability and drag forces that has not yet been extensively studied. A series of experimental investigations examining speed, acceleration, length of cable and path of motion were paired with predictions from a simulation for
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Sridharan, Ananth, and Roberto Celi. "On The Role of Cable Curvature in Rotorcraft-based Tow Operations for Submerged Loads." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9604.

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This paper discusses mathematical modeling of helicopters towing loads that are submerged in water. Special attention is paid to the role of cable hydrodynamics and effects of curvature. Analytical predictions for a four-bladed conventional utility helicopter towing a representative load with fins for passive stabilization and depth control are shown for steady and level forward and turning flight conditions. As the lengths of the cable increase, the total drag from the tow cable is comparable to that on the submerged load and cannot be ignored. The role of hydrodynamic fairings is critical fo
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Falls, Jaye. "Hydrodynamic Characterization of a Sonar Body for Rotorcraft-based Towing." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9605.

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This paper describes experimental measurements of a fully submerged body designed to be towed by a helicopter. The goals of the tow tank testing program are (1) to characterize the towed body model so that a hydrodynamic lookup table can be constructed for a simulation, and (2) to provide measurements and observations that can validate the simulation. In this phase of the experimental investigation, the towed body model was first mounted on a rigid sting, and hydrodynamic forces were measured for a range of speeds, pitch angles and yaw angles. It was shown that using the mechanically practical
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Bortels, L., B. Van den Bossche, M. Purcar, A. Dorochenko, and J. Deconinck. "3D Software Simulations for Cathodic Protection in Offshore and Marine Environments." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07085.

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Abstract This paper presents a 3D software tool for the design and optimization of cathodic protection systems for submerged structures. It provides the corrosion engineer an intelligent tool for managing operational costs, significantly reducing expensive commissioning surveys and costly repairs, adding major value to the cathodic protection business. The software is entirely CAD integrated, offering a user-friendly interface for the CP design, including file import from numerous other CAD packages. The key model features include amongst others: parameterization of all geometrical dimensionss
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Krebs, Torsten. "ICCP System for Internal Protection of Monopiles for Offshore Wind Farms." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11120.

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Abstract After the commissioning of monopile foundation systems in many offshore wind farms, internal corrosion problems have been observed inside of the monopiles in the area located beneath the so-called “airtight deck”. The cause of these corrosion problems is usually a failure of the subsea cable entrance seal which allows oxygen to penetrate into the monopile. This is in complete contradiction to the assumption that the submerged internal area is a "gas sealed area" with a low corrosion risk due to a limited presence of oxygen after initial oxygen depletion. This paper presents a solution
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Ikenberry, Robert. "A Contractor’s Overview of Fall Protection: Here’S a Practical Reminder about Regulations and Practices for Protecting Painters from Falls." In SSPC 2011. SSPC, 2011. https://doi.org/10.5006/s2011-00034.

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The third of three 80-foot by 16-foot platforms is just lifting off the barge. As the platform clears the deck and begins its 150-foot climb to the underside of the bridge, the tug and barge pull away and head back to the dock. I’m one of three workers standing on the deck of the platform as it slowly is winched up, 10 feet, 15 feet, then 20 feet off the water. Suddenly, with a snap and a shout from above, one corner of the platform begins to tip, and the support cable snakes down, splashing and then disappearing into the cold water of the bay. One of the four suspension points on the bridge a
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Behbahani-Nejad, M., and N. C. Perkins. "Nonlinear Wave Propagation in Elastic Submerged Cables." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-3842.

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Abstract This paper analyzes the coupled nonlinear tangential-normal waves that propagate along underwater cable suspensions. Taken with the recently developed linear theory governing the in-plane structural waves (3) and an analysis of nonlinear out-of-plane waves for submerged cables (2), this investigation contributes further understanding toward a nonlinear three-dimensional theory for wave propagation along fluid loaded cables. The nonlinearities present in the in-plane model render the cable/fluid model intractable by exact analytical methods. A numerical solution is pursued in this stud
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Newberry, B. L., and N. C. Perkins. "Asymptotic Analysis of a Tension Resonance Mechanism in Submerged Cables." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0462.

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Abstract Marine cables deployed in a fluid environment possess stiffness and drag properties which show strong directional dependence. This directionality significantly impacts dynamic cable response; particularly the dynamic tension developed due to environmental disturbances. This investigation focuses on one resonant dynamic tension mechanism that derives from nonlinear fluid/cable interaction. This mechanism is successfully captured using a discrete approximation to a continuous fluid/cable model as suggested by the results of a recent numerical study. An asymptotic solution of the discret
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He, Manli, Shuxin Wang, and Xiaoping Li. "Multibody Dynamics Modeling of Submerged Cable Systems With Elastic Segments." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84986.

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A method for dynamic analysis of submerged cable system with elastic segments is presented based on the finite segment formulation in which elastic segments of a cable are described using shape functions of finite element method (FEM). The simulation model is tested by available experimental data to be computationally efficient and numerically stable. The method is also proved by the experimental results of the Small Oceanic Buoy System which has been developed by Oceanic Engineering Center of China.
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Reports on the topic "Submerged cable"

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Brown, Jason, Robert Bernstein, Gregory Von White, II, et al. Submerged Medium Voltage Cable Systems at Nuclear Power Plants: A Review of Research Efforts Relevant to Aging Mechanisms and Condition Monitoring. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1177756.

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Glass, Samuel, Leonard Fifield, Aimee Holmes, and Kevin Anderson. Assessment of EPRI’s Tan Delta Approach to Manage Cables in Submerged Environments: Statistical Review of EPRI Data. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1713064.

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