Key process of the defection of PET buffer layer in XLPE power cable by a case study: Thermo-oxidative degradation

Zhou, Wenqing; Cheng, Hui‐Ming; Hui, Baojun; Huang, Jian; Hao, Yanpeng; Liu, Gang; Li, Licheng

doi:10.1016/j.engfailanal.2023.107131

Cited by 16 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As plastic is a compound made up of long-chain polymers, they are subject to failures between monomers, these failures mainly in polyethylene terephthalate (PET) packages are predisposed to the phenomenon of ablation in their tapes, in the meantime Zhou et al 18 contribute to the discussion raised here, showing that the thermooxygen degradation process can significantly help in solving these 'Failures' that occur in (PET) tapes, improving the resistance of the material, reducing capital costs, whether economic or environmental. What can be seen from these studies is that the process of oxidative degradation is similar to plastics, it forms secondary compounds due to the chemical structure of the plastic, it is a low-cost process that can occur with or without the incidence of UV light, but always related directly the partial pressures suffered by the object, in the presence or not of low-cost metallic catalysts, but always with low biodegradability.…”

Section: Oxidative Degradationmentioning

confidence: 99%

Microplastics, physical-chemical and biological principles of this environmental liability

Oliveira,

Couto,

Oliveira

et al. 2024

MSEIJ

View full text Add to dashboard Cite

The advent of plastic to the social situation has suppressed a series of demands from both the industry and the population, due to cost, durability and disposal. Because they can be rigid, malleable, opaque, translucent, easy or difficult to melt by the action of fire, some make them capable of serving as raw material for various products on the market, including those widely used in the food industry. In view of the above, the present study aims at a bibliographical review on the topic of microplastics, where the search will be to verify the primary and secondary steps necessary for the formation of the compound, its direct and indirect influence on food production, the physical-chemical processes through which compounds are obtained and the presence or absence of regulation regarding this environmental liability. The present study aims to analyze as a basis the search for knowledge of the primary and secondary formation of microplastics. Subsequently, together with its main objective, this study aims to search for the physico-chemical and thermodynamic phenomena involved in the process of formation and obtaining of microplastics, the polluting potential and, like all waste, its implications for human health. A study horizon was established covering the years 2015 to 2023, where 3,750 articles were found and after applying open access filters, duplication of publication, words present only in the abstract and not in the text, 49 articles remained that are the object of this study. The direct implications of microplastic pollution are already a relevant reason for discussion and subsequent regulation by managers, researchers, international organizations and society in general. Public health problems that can transform into microplastics, containment and adsorption mechanisms of these compounds in living organisms, are points to be pursued by academia as a whole. Contamination by these compounds was found in bottled mineral water, human milk, processed foods, seafood, showing the extent of contamination of this material.

show abstract

Section: Oxidative Degradationmentioning

confidence: 99%

Microplastics, physical-chemical and biological principles of this environmental liability

Oliveira,

Couto,

Oliveira

et al. 2024

MSEIJ

View full text Add to dashboard Cite

show abstract

“…Nevertheless, in the present stage, the monitoring of cable faults significantly lags behind the rapid pace of technological advancement, resulting in numerous safety issues during production. One of these issues pertains to the inevitable development of insulation defects in the external insulation layer of cables as their operational lifespan increases, consequently leading to partial discharges (PDs). , This process produces a substantial amount of fault gases and hazardous compounds, including CO, SO 2 , and SOF 2 . SO 2 is generated when cables are aged and heated, while the channel generates SOF 2 in the case of severe partial discharges.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Sensing Mechanism of a nTiO₂ Particle (n = 1–3)-Doped MoTe₂ Monolayer to Faulty and Hazardous Gases in the Underground Cableway

Mei,

2024

ACS Omega

View full text Add to dashboard Cite

With the rapid growth of the economy and industrial technology, vigoroso and stable power distribution networks have gradually been established worldwide. Among these networks, underground cables play a crucial role in the distribution process, determining the overall electrical stability of entire cities. Based on density functional theory, this paper first proposes a TiO 2 particledoped MoTe 2 monolayer to detect and eliminate these faults and hazardous gases within the underground cableway. The band structure, total density of states, projected density of states, and differential charge density are analyzed. The results demonstrate that the presence of TiO 2 particles significantly enhances the adsorption capacity of MoTe 2 , diminishes the electrical conductivity of the doping system, and heightens electron activity in the doping reaction zone. The best adsorption performance is achieved in the case of two-particle doping. Furthermore, the modified MoTe 2 exhibits an enhanced capability for capturing SO 2 and SOF 2 , with the adsorption mechanism classified as physical−chemical adsorption. This work not only introduces a novel surface modification method for a MoTe 2 monolayer but also provides a substantial data set to support the design and production of efficient sensors used in the underground cableway. These contributions further enhance the safety and stability of power systems and ensure human health.

show abstract

“…Zhou et al analyzed the degradation and evolution mechanism of buffer tape with polyethylene terephthalate fiber as the main component. The results show that thermo-oxygen degradation is a key process for cable ablation defect of cable buffer tap (Zhou et al , 2023). To solve the faults caused by cable structure design, Benato et al established a three-dimensional finite element model of the three-core submarine armored cable.…”

Section: Introductionmentioning

confidence: 99%

A plasma energy deposition based model for power cable bellows discharge

Wang

Yang

et al. 2023

COMPEL

View full text Add to dashboard Cite

Purpose This paper aims at building a discharge model for the power cable bellows based on plasma energy deposition and analyzing the discharge ablation problem. Design/methodology/approach Aiming at the multiphysical mechanism of the discharge ablation process, a multiphysical field model based on plasma energy deposition is established to analyze the discharge characteristics of the power cable bellows. The electrostatic field, plasma characteristics, energy deposition and temperature field are analyzed. The discharge experiment is also carried out for result validation. Findings The physical mechanism of the bellows ablative effect caused by partial discharge is studied. The results show that the electric field intensity between the aluminum sheath and the buffer layer easily exceeds the pressure resistance value of air breakdown. On the plasma surface of the buffer layer, the electron density is about 4 × 1,019/m3, and the average temperature of electrons is about 3.5 eV. The energy deposition analysis using the Monte Carlo method shows that the electron range in the plasma is very short. The release will complete within 10 nm, and it only takes 0.1 s to increase the maximum temperature of the buffer layer to more than 1,000 K, thus causing various thermal effects. Originality/value Its physical process involves the distortion of electric field, formation of plasma, energy deposition of electrons, and abrupt change of temperature field.

show abstract

Key process of the defection of PET buffer layer in XLPE power cable by a case study: Thermo-oxidative degradation

Cited by 16 publications

References 21 publications

Microplastics, physical-chemical and biological principles of this environmental liability

Microplastics, physical-chemical and biological principles of this environmental liability

Adsorption and Sensing Mechanism of a nTiO₂ Particle (n = 1–3)-Doped MoTe₂ Monolayer to Faulty and Hazardous Gases in the Underground Cableway

A plasma energy deposition based model for power cable bellows discharge

Contact Info

Product

Resources

About

Key process of the defection of PET buffer layer in XLPE power cable by a case study: Thermo-oxidative degradation

Cited by 16 publications

References 21 publications

Microplastics, physical-chemical and biological principles of this environmental liability

Microplastics, physical-chemical and biological principles of this environmental liability

Adsorption and Sensing Mechanism of a nTiO2 Particle (n = 1–3)-Doped MoTe2 Monolayer to Faulty and Hazardous Gases in the Underground Cableway

A plasma energy deposition based model for power cable bellows discharge

Contact Info

Product

Resources

About

Adsorption and Sensing Mechanism of a nTiO₂ Particle (n = 1–3)-Doped MoTe₂ Monolayer to Faulty and Hazardous Gases in the Underground Cableway