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Failure Mechanisms in XLPE Cables
2021During the operation of the cables, their insulation is subjected to simultaneous or consecutive electrical, thermal, mechanical and environmental stresses. These stresses contribute to the initiation and development of some processes of XLPE degradation; processes that lead, in time, to the insulation breakdown and, therefore, to the removal and ...
Petru V. Noțingher +2 more
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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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Historical and Theoretical Background of XLPE
2021This chapter deals with the historical and theoretical analysis of crosslinked polyethylene (XLPE). The chapter is divided into three sections, the first section dealing with the historical developments in XLPE. This part depicted a historical picture of invention, the necessity of invention and finally its establishment as various XLPE products.
Minu Elizabeth Thomas +3 more
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A study of accelerated oxidation of XLPE
1984 IEEE International Conference on Eletrical Insulation, 1984Although the oxidation processes in polyethylene have been the subject of several studies, there remain many unknowns, especially with respect to the aging of high-voltage cross-linked PE (XLPE) cables. These materials contain, among other additives, an antioxidant and a cross-linking agent whose presence significantly modifies the oxidation processes.
Jean-Pierre Crine, Michel Duval
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Advances in TR-XLPE insulation
1999 IEEE Transmission and Distribution Conference (Cat. No. 99CH36333), 1999TR-XLPE is widely accepted within North America as the MV power cable insulation material of choice due to its superior long-life performance and excellent value. Since the introduction of TR-XLPE in 1982, evolutionary and sometimes revolutionary improvements have been made by both the compound producer and cable manufacturer leading to enhanced cable ...
P.J. Caronia +3 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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Flame-Retardant Aspects of XLPE
2021Crosslinking of polyethylene is used to improve mechanical properties, thermo-mechanical performance and chemical resistance of polyethylene. Many applications of crosslinked polyethylene (XLPE) require some level of flame resistance, especially those applications that require the XLPE to be used in and around enclosed spaces, such as automobiles ...
Jeffrey M. Cogen +4 more
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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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Comparative Laboratory Evaluation of TR-XLPE and XLPE Cables With Super-Smooth Conductor Shields
IEEE Transactions on Power Delivery, 2004This paper provides data on four commercial tree retardant crosslinked polyethylene (TR-XLPE) and one cross-linked polyethylene (XLPE) insulated 15 kV cables supplied by three manufacturers. The cables have "super-smooth" conductor shields and "extra-clean" insulation and insulation shields.
C. Katz, M. Walker, B. Fryszczyn
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