Results 141 to 150 of about 1,208 (182)
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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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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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Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 2002
This paper presents the results of a continuing investigation into degradation of the crosslinked polyethylene (XLPE) power cable insulation. The paper deals with the changing of water absorption of various types of XLPE power cable insulations: steam and nitrogen-dry cured crosslinked polyethylene; (XL) and steam and nitrogen-dry cured water tree ...
S.V. Nikolajevic, B.B. Stojanovic
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This paper presents the results of a continuing investigation into degradation of the crosslinked polyethylene (XLPE) power cable insulation. The paper deals with the changing of water absorption of various types of XLPE power cable insulations: steam and nitrogen-dry cured crosslinked polyethylene; (XL) and steam and nitrogen-dry cured water tree ...
S.V. Nikolajevic, B.B. Stojanovic
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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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Electroluminescence properties and degradation of XLPE
2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, 2007Electroluminescence (EL), faint light observed at electric field concentrating points is well accepted as a precursor of the electrical tree initiation. EL is considered to be related to material degradation; the start of EL is the start of the degradation.
T. Mito, Y. Muramoto, N. Shimizu
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Industrial and Commercial Importance of XLPE
2021Crosslinked polyethylenes (XLPEs) have been successful to attract current active research interests both in academia and in industry for its wide range of potential and practical industrial and commercial applications. For example, XLPEs are widely used in high-voltage cable manufacture along with their applications in underground pipes for sewerage ...
Shah Mohammed Reduwan Billah +1 more
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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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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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Electrical conduction of a XLPE nanocomposite
Journal of the Korean Physical Society, 2014The resistivity, breakdown strength, and formation of space charges are very important factors for insulation design of HVDC cable. It is known that a nano-sized metal-oxide inorganic filler reduces the formation of space charges in the polymer nanocomposite.
Yong-Jun Park +4 more
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Thermoluminescence in XLPE cable insulation
IEEE Transactions on Dielectrics and Electrical Insulation, 1996Crosslinked polyethylene (XLPE) has been employed in underground transmission and distribution cables because of its excellent electrical and mechanical properties, such as low permittivity and dielectric loss, high degree of toughness, and good flexibility.
Bamji, S. S., Bulinski, A. T.
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