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Research in the Deterioration of Organic Materials in Snowy Region

Research Project

Project/Area Number 08650355
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionAKITA NATIONAL COLLEGE OF TECHNOLOGY

Principal Investigator

HASEGAWA Seiichi  Electerical Engineering, Professor, 電気工学科, 教授 (00042292)

Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1996: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordsorganic insultaing material / tracking deterioration / precipitaion / acid and saline snow / hydrophobicity / water absorption / contact angle / tracking resistance / ポリマー絶縁材料 / シンチレーション放電
Research Abstract

Recently, the organic insulating materials which have a superior electric performance to porcelain, have got wide use in outdoor power appratus and equipment. On the coast of Japan Sea the outdoor organic insulating materials are exposed to snow cantaining acid and salinity. So it is suggested that the surfce deterioration of the materials would be affected by the snow. In this research the infuluence of the snow on the tracking deterioration of organic materials have been investrigated. The various samples PC,PE and ABS are investigated by accelated degradation.
Artificial acis and salinity solution which agree with the actual ingredient and composition of the precipitation used in this investigation. After various samples are soaked in this solution, the surface hydrophobicity, tracking resistance, water absorption, loss tangent tan delta and microscopic surface apperarance for the soaked are compared with those for the original ones in order to observe the surface degradation process … More es.
Then soaked samples are frozen at -20゚C in the freezer more than 24 hours and these samples are tested with IEC-587 inclined-plane tracking method.
The results obtained from this investigation are summarized as follows.
(1)The surface of some organic insulating materials are degrated by the solution containing acid and salinity. The contacrt angles of soaked sammples are decreased with soaked period. It is clear that surface of the materials suffer large chemical attack. Therefore hydrophobicty of the materials decrease, which results in cutting down the racking resistance.
(2)In general, water absorptionof the organic materials is little at most 1%. The materials, which have resistivity to action of acid, absorb water less than 0.2%. In addition, the value of loss tanngent gradually increases with the absorption.
(3)Some frozen materials, such as, PE and PP decreased the tracking resistance remarkably. Because of acid snow and cold condition, the life time of the outdoor organic insulating materials decreases particularly. Less

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 長谷川 誠一 他: "汚損した有機絶縁材料表面における放電特性" 秋田工業高等専門学校研究紀要. 第31号. 50-53 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 長谷川 誠一: "純粋有機絶縁材料の耐トラッキング性に対するSO2系酸性雨の影響" 放電,誘電絶縁材料合同研究会資料. ED-96-85. 57-63 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Seiichi Hasegawa et.al: "The Influence of Acid Rain on the Tracking Deterioration Organic Materials" Proeeding of The 5th ICPADM. Vol.2. 754-757 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 長谷川 誠一: "積雪寒冷環境における有機絶縁材料の劣化現象" 寒冷環境工学教育研究センター年報. 第11号. 19-24 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Seiichi HASEGAWA: "Characteristics of Discharge Current on the poluted organic insulating material Surface" Bulletin of Akita National College of Technology. 31. 50-53 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Seiichi HASEGAWA et al.: "The Effect of SO2 Acid Rain on the Tracking Deterioratiou of the Pure Organic Materials" Proceeding of Conferrence Descharge and Dielectric. Vol.ED-96-85. 57-63 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Seiichi HASEGAWA et al.: "The Influence of Acid Rain on the Tracking Deterioration of Organic Materials" Proceeding of The 5th ICPADM. 2. 754-757 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Seiichi HASEGAWA: "The Deterioration of Organic Materials in the Snowy and Cold Region" Annual Report of Institute for Cold, Regions Technology. No.11. 19-24 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 長谷川誠一他: "純粋有機絶縁材料の耐トラッキング性に対するSO2系酸性雨の影響" 放電,誘電絶縁材料合同研究会資料. ED-96-85. 57-63 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Seiichi Hasegawa et.al: "The Influence of Acid Rain on the Tracking Deterioration of Organic Materials" Proeeding of The 5th ICPADM. Vol.2. 754-757 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 長谷川誠一: "積雪寒冷環境における有機絶縁材料の劣化現象" 寒冷環境工学教育研究センター年報. 第11号. 19-24 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 長谷川誠一 他: "酸性雨による有機絶縁材料の劣化" 秋田工業高等専門学校研究紀要. 32. 15-18 (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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