Effect of temperature rise and water contamination on leakage current in underwater used XLPE insulated power cables

Eish, T.D.; Youssef, Fathi M. H.; El-Dessouky, S.S.

doi:10.1109/elinsl.1988.13937

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…During their operating service, XLPE insulated power cables are expected to work under wet environments. In fact, Submarine insulated cables are immersed in water and underground ones are located in humid places [3,4]. Although their high safety designs, a physical damage caused by mishandling of the cables can allow water penetration into the insulation and may lead to water treeing [5,6].…”

Section: Introductionmentioning

confidence: 99%

Influence of moisture on the electrical properties of XLPE insulation

Mecheri

Nedjar

Lamure

et al. 2010

2010 Annual Report Conference on Electrical Insulation and Dielectic Phenomena

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract-During their operating service, insulated power cables can be exposed to wet environment. The presence of moisture in cables surroundings may affect the properties of the used insulation material for instance, XLPE widely employed in MV and HV power cables insulation and therefore the reliability of the insulated cables. In order to examine the influence of wet aging conditions on the performances of XLPE insulated cables, samples (plates moulded from granules HFDE 4201-EC) of the same insulation material were exposed during 5600 hours to wet environment inside a cell simulating moisture. The XLPE material used in the present investigation is employed as insulation for medium voltage (MV) cables (18 / 30 kV). This work presents the results of the effect of aging under wet conditions on the electrical properties of XLPE. The goal of this paper was to investigate the eventual degradation of XLPE insulation under humidity effect by characterization techniques. For this purpose, measurements of dielectric losses factor, relative permittivity, volume resistivity and dielectric strength were performed. Influence of Moisture on the Electrical Properties of XLPE Insulation

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Section: Introductionmentioning

confidence: 99%