Results 301 to 310 of about 49,233 (340)

High Pollution Resistant Composite Insulators

2008 International Conference on High Voltage Engineering and Application, 2008
Composite insulators with silicone rubber housing have been applied since more than 40 years successfully under various climatic and pollution stress conditions. Since the service experience was not available in the introduction phase (Generation I and II) of this insulator technology in the early 1970ies, the life-expectation for composite insulators ...
J. M. Seifert, D. Stefanini
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Sound insulation of composite materials

Composites, 1974
Abstract The relationships between a material's physical properties and its sound insulation are discussed. The sound insulation of composite materials can be estimated provided that these physical properties are known. Although composites may be designed to give a better than average sound insulation performance for their mass, the sound insulation ...
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Nacre-Inspired Hybrid Multilayer Insulation Composites

ACS Applied Materials & Interfaces
Superinsulation aerogels are characterized by low tensile strength and brittleness due to their high porosity. To address these limitations, multiscale architectural design inspired by nacre can be employed. This materials design approach offers a promising strategy for enhancing the mechanical strength of aerogel thermal insulation.
Long Zhu, Jongmin Shim, Yulong Huang, Jason N. Armstrong, Taotao Meng, Shenqiang Ren   +5 more
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Metal/insulator composite selective absorbers

Solar Energy Materials, 1979
Abstract The optical properties of metal/insulator composite films have been examined, and their utilization as solar selective absorbers studied both theoretically and experimentally. Calculations have been made on the solar selective performance of graded composite films, demonstrating the performance and limitations to be expected for the general ...
H.G. Craighead, R. Bartynsky, R.A. Buhrman, L. Wojcik, A.J. Sievers   +4 more
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Insulation Hysteresis in Micaceous Composites

IEEE Transactions on Electrical Insulation, 1982
The dissipation factor, sensitive to voltage stress, is invariably used for quality assessment of high voltage rotating machine insulation. When it is subjected to higher electrical stresses, insulation hysteresis occurs during these measurements, which is similar to those exhibited by ferromagnetic materials. The influence of the insulation hysteresis
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Natural, Rotationally Asymmetric Ageing of Composite Insulators

Conference Record of the 2008 IEEE International Symposium on Electrical Insulation, 2008
The market for polymeric insulators has existed for over 20 years and the possibility now exists to compare good quality service-aged products with the original expectations of performance. This paper presents investigations of field-aged insulators, which have been deployed for 6-7 years on a variety of distribution lines.
Da Silva, E., Rowland, S. M.
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Polymer‐Based Nano‐Composites for Thermal Insulation

Advanced Engineering Materials, 2019
The growing need for efficient energy use prompts for effective thermally insulating materials. Nano‐composites represent an important class of materials able to fulfill these needs, enabling both sizeable energy savings and specific applications where thermal insulation has to be coupled to mechanical robustness and lightness, like in automotive and ...
Fraleoni Morgera A., Chhikara M.
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Hydrophobicity and insulated resistance of composite insulators with biological contamination

2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2016
Biological growth has been observed on insulators installed all over the world. However its impact on the electrical performance is not well known. This paper described the investigations on the performance of post insulators with biological growth at a converter station. Both the ceramic and composite insulators were investigated.
Gulin Xia, Shaojun Yang, Xiaoxing Wei, Jinyin Zhang, Jinwei Chu   +4 more
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Study on Exterior Insulation System of New Composite Insulation Board

Advanced Materials Research, 2012
The foam concrete used as surface materials and polyurethane used as core material for the development of new composite heat-insulated board of exterior insulation system. The research and applications showed that the thermal insulation system with excellent constructability, significant environmental benefits, economic and social benefits have been ...
Xiu Yun Chen, Jian Hao Lin
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Outdoor HV composite polymeric insulators

IEEE Transactions on Dielectrics and Electrical Insulation, 1999
HV composite polymeric insulators are being accepted increasingly for use in outdoor installations by the traditionally cautious electric power utilities worldwide. They currently represent -60 to 70% of newly installed HV insulators in Nortb America.
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