Results 171 to 180 of about 139,328 (210)

Impurities in XLPE cable resins

Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM), 2002
This paper presents results on an impurity analysis of various insulation and semiconducting shield resins made by four manufacturers and used for power cables. Three different strand-blocking materials used to fill the conductor interstices were also analyzed.
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The research of peroxide decomposition in XLPE cables

Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP'94), 2002
The authors have studied the dehydration reaction of cumyl alcohol which occurs as a result of heating XLPE cable to high temperatures. First, they investigated the relationship between the water produced as a result of the dehydration reaction and the number of microvoids.
I. Ishikawa, S. Nakamura, S. Utsunomiya, S. Yamamoto, T. Niwa   +4 more
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Degradation of XLPE and PVC cable insulators

2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2015
Thermal degradation mechanisms of automotive cable insulators made of PVC and XLPE matrices have been investigated by FT-IR spectroscopy. Impact of degradation at the macroscopic scale was monitored by uniaxial tensile testing and dielectric spectroscopy. It is found that elastic and fracture properties drop well before insulation properties.
Tetiana Salivon, Xavier Colin, Raphael Comte   +2 more
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Long‐term characteristics of XLPE cables

Electrical Engineering in Japan, 1993
AbstractTo study the long‐term characteristics of XLPE cables installed in free air and in water, aging tests were conducted under various testing conditions using XLPE cables with both 3.5 mm and 6 mm insulation.From the Weibull plots of lifetime distribution under the voltage stress EL as the minimum breakdown strength, the minimum value of time to ...
Katsuichi Ohata, Ginzo Katsuta, Zensuke Iwata, Yoshio Maruyama, Yasuo Sekii, Mamoru Kanaoka   +5 more
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Accelerated aging of XLPE cable insulation

Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1983, 1983
The latest results of a continuing study into the deter ioration of cross-linked polyethylene (XLPE) insulation subjected to electric stress in the presence of water are described. Earlier results have shown that the breakdown strength of electrically aged XLPE was dependent on the amount of moisture in the insulation [1].
Bulinski, A. T., Bamji, S. S., Densley, R. J., Shimizu, N.   +3 more
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Advanced HVDC XLPE cable and accessories

9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012), 2012
We have found that the issues in the DC properties of conventional cross linked polyethylene (XLPE) can be solved through the DC-XLPE insulating material. The DC-XLPE's major advantages against conventional XLPE are as follows: High volume: resistivity: Low space charge accumulation: High DC breakdown strength: Long DC life time The HVDC cable system ...
T. Igi, Y. Murata, S. Kashiyama, M. Sakamaki, K. Abe, S. Katakai   +5 more
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Morphology of novel XLPE cable systems

2007 IEEE International Conference on Solid Dielectrics, 2007
Crosslinked polyethylene (XLPE) insulated cables are used widely for the transmission and distribution of electrical power. Although XLPE has many desirable characteristics, the addition of other polymers constitutes one way in which properties can be modified to suit particular applications.
I. L. Hosier, A. S. Vaughan, A. Campus, U. Nilsson   +3 more
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Recovery voltage measurements on XLPE cables

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319), 2003
The dielectric response provides information on the physical and chemical structure of a material. For aging processes that affect physically and/or chemically insulating materials, the change in polarization phenomena can be exploited to monitor insulation degradation.
P.H.F. Morshuis, H.J. Van Breen, J.J. Smit, G. Urbani   +3 more
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Performance of Extruded Dielectric (XLPE) Cable

IEEE Transactions on Power Apparatus and Systems, 1978
Samples from a 138kV XLPE cable tested at Waltz Mill are examined and compared with an unenergized piece. Several new analytical techniques are employed and studies are made concerning the distribution of discontinuities (contaminants, ambers, voids, and trees, etc.), cure-related items (extractables, density, residual peroxide and decomposition ...
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Development of watertree retardant XLPE cables

Proceedings of the Twenty-First Symposium on Electrical Insulating Materials, 2003
The development and testing of a WTR XLPE (watertree-retardant cross-linked polyethylene) insulating material in MV (medium voltage) cables are outlined. The main phases of the development are postulation of a hypothesis of WT initiation and growth; investigation and verification of the WTR efficiency of a WTR compound on a laboratory scale, projection
P. Fischer, N. Muller, E.F. Peschke, R.G. Schroth   +3 more
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