Journal ArticleDOI
Modern outdoor insulation - concerns and challenges
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In this paper, a brief description of composite insulators, including a discussion of their benefits, aging of housing materials, and brittle fracture phenomenon, is provided, and four broad issues that are being addressed by the present research on outdoor insulation.Abstract:
Because modern society is strongly dependent on a reliable power supply, there is an urgent need to develop more reliable high voltage insulators. While porcelain and glass have dominated insulator materials for a long period of time, there is renewed interest in polymeric and semiconducting glaze insulators. This paper provides a brief description of composite insulators, including a discussion of their benefits, aging of housing materials, and brittle fracture phenomenon. The paper also discusses the benefits of using insulators with semiconducting glaze surfaces, and identifies four broad issues that are being addressed by the present research on outdoor insulation.read more
Citations
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I and i
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Ageing of silicone rubber insulators in coastal and inland tropical environment
TL;DR: In this paper, the performance of silicone rubber composite and hybrid silicone-ceramic insulators was evaluated in laboratory by measurements of leakage currents under clean fog conditions and of wet flashover voltage.
Journal ArticleDOI
Investigation on permeation properties of liquids into HTV silicone rubber materials
TL;DR: In this paper, the influence of differing exposure conditions on the diffusion into silicone rubber, in particular the effect of solution type, solution concentration, and test temperature, was explored by weight gain experiments.
Journal ArticleDOI
An investigation of dynamic mechanical, thermal, and electrical properties of housing materials for outdoor polymeric insulators
TL;DR: In this article, the results about a study of mechanical, thermal, dynamic mechanical and electrical properties of housing materials for outdoor polymeric insulators were reported, which showed that initial thermal degradation of silicone rubber improves by the effect of EPDM in blends.
References
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Journal ArticleDOI
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Journal ArticleDOI
Purity of the sacred lotus, or escape from contamination in biological surfaces
TL;DR: It is shown here for the first time that the interdependence between surface roughness, reduced particle adhesion and water repellency is the keystone in the self-cleaning mechanism of many biological surfaces.
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Outdoor HV composite polymeric insulators
TL;DR: In this paper, the authors present a review of the recent performance experience of HV composite polymeric insulators in outdoor service, testing methods, aging, the ranking of the materials, the role of fillers, low molecular weight components present in the insulators, mechanisms responsible for the loss and recovery of hydrophobicity, one of the most important properties of polymers, the mechanisms of failure, detection of faults, type and quantity of natural contaminants, effects of exposure to rain, hydrocarbons, stationary air and wind, various methods to optimize the electrical performance and a
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Crosslinked polydimethylsiloxane exposed to oxygen plasma studied by neutron reflectometry and other surface specific techniques
TL;DR: In this paper, spin-coated specimens of crosslinked polydimethylsiloxane (PDMS) exposed to radio-frequency (RF) and microwave (MW) oxygen plasma were studied by specular neutron reflectometry, X-ray photoelectron spectroscopy (XPS), Wilhelmy balance, contact angle measurements, scanning electron microscopy and atomic force microscopy.
Journal ArticleDOI
Hydrophobicity Recovery of Polydimethylsiloxane after Exposure to Corona Discharges
Henrik Hillborg,Ulf W. Gedde +1 more
TL;DR: In this paper, contact angle measurements of a high-temperature-vulcanized polydimethylsiloxane (PDMS) elastomer have been obtained for different periods of time in dry air.