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General Awareness of XLPE Manufacturers
2021Crosslinked polyethylene (XLPE) has a complex value chain and is used in a variety of applications and industries. Intellectual property trends are presented and discussed in terms of evolving applications. The different kinds of crosslinking via peroxide and moisture cure technologies are presented.
Saurav S. Sengupta, Pieter Calon
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2021
Crosslinked polyethylene finds widespread use as a thermoset material in various industries due to their superior thermomechanical properties. There are three common ways of crosslinking polyethylene via irradiation, peroxide and silanes. Irradiation and peroxide-based crosslinking technologies involve the use of radicals.
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Crosslinked polyethylene finds widespread use as a thermoset material in various industries due to their superior thermomechanical properties. There are three common ways of crosslinking polyethylene via irradiation, peroxide and silanes. Irradiation and peroxide-based crosslinking technologies involve the use of radicals.
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Electroluminescence for XLPE cable diagnosis
Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417), 2004Electrical treeing is responsible for the breakdown of power cables with polymeric insulation, such as low density polyethylene (LDPE) and cross-linked polyethylene (XLPE). Electroluminescence (EL) occurs in the initiation phase of electrical tree. We studied the characteristics of EL in XLPE cut from 77 kV class power cables.
R. Ishii +4 more
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Deterioration in aged XLPE cables
[Proceedings] 1992 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena, 2003Electrical and material characteristics of 93 aged XLPE (cross-linked polyethylene) cables removed from the field after 2 approximately 19 years of service were measured. It was confirmed that breakdown strengths under AC, DC, and impulse voltages in such cables decrease with length of service.
T. Nagata, N. Shimizu
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Electroluminescence in water-treed XLPE
Proceedings of the 2004 IEEE International Conference on Solid Dielectrics, 2004. ICSD 2004., 2004Electroluminescence (EL) occurs in initiation phase of electrical tree and is considered to be a probe of the degradation of polymer insulating materials. On the other hand, under existence of water, water treeing takes place when subjected to a high electric field.
A. Tanida, Y. Muramoto, N. Shimizu
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Water measurements in XLPE cables
Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1985, 1985The water content in buried high-voltage cables is of great industrial interest, especially in view of the treeing observed in crosslinked polyethylene (XLPE) cables in the presence of water (1–3). It is not yet clear, however, if a minimum water content exists above which tree growth is initiated. Although the saturated-water content of PE is about 10–
J. P. Crine +3 more
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Characteristics of partial discharge and AC electrical tree in XLPE and MgO/XLPE nanocomposites
IEEE Transactions on Dielectrics and Electrical Insulation, 2020In order to investigate the effect of nano-doping on partial discharge (PD) and electrical tree growth in cross-linked polyethylene (XLPE), samples of 0.5 wt% magnesium oxide MgO/XLPE were prepared and an AC experiment was carried out. A color-coded diagram for PD signal was developed to describe the PD activity during the whole process of treeing. The
Xi Zhu, Jiandong Wu, Yalin Wang, Yi Yin
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IEEE International Symposium on Electrical Insulation, 2002
Impurity analysis by neutron activation was performed on several unaged and field-aged distribution cables differing in origin and manufacturing process (steam and dry curing). The results show principally that impurities found in the insulation can be attributed primarily to unclean semiconductive shields and to the manufacturing process.
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Impurity analysis by neutron activation was performed on several unaged and field-aged distribution cables differing in origin and manufacturing process (steam and dry curing). The results show principally that impurities found in the insulation can be attributed primarily to unclean semiconductive shields and to the manufacturing process.
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Life Prediction of XLPE Cables
Applied Mechanics and Materials, 2014With the intensive construction and development of the city, especially the increasing demands on power transmission, the application of cross-linked polyethylene (XLPE) material becomes wider, with large-scale application on cable manufacturing. An excellent life prediction system of XLPE cable means a lot to improve power supply reliability, raise ...
Fang Shen, Gang Xu
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Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 2002
An extensive investigation of the long term wet ageing performance of MV-XLPE power cables was started by Nordic (Norway, Sweden, Denmark and Finland) utilities and cable manufacturers in 1990. Representatives from the manufacturers and utilities were members of the project Steering Committee. The investigations were performed by the Norwegian Electric
J.T. Benjaminsen +4 more
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An extensive investigation of the long term wet ageing performance of MV-XLPE power cables was started by Nordic (Norway, Sweden, Denmark and Finland) utilities and cable manufacturers in 1990. Representatives from the manufacturers and utilities were members of the project Steering Committee. The investigations were performed by the Norwegian Electric
J.T. Benjaminsen +4 more
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