戶外GIS氣室外用緊固件的選用
陳伯榮，俞慧忠，周慶清，黃志強
(浙江開關廠有限公司，浙江 衢州 324000)
摘 要： 針對戶外氣體絕緣金屬封閉開關設備氣室外用緊固件的生銹問題，分析了現階段碳鋼緊固件常用的三種表面防銹防腐處理措施熱浸鍍鋅和達克羅特性及不銹鋼材質緊固件的特性，討論了緊固件設計安裝時應注意的事項，并比較了這三類緊固件的防銹防腐特性，綜合考慮成本等因素后，給出了戶外氣體絕緣金屬封閉開關設備氣室外用緊固件比較經濟合理的選用方案。
關鍵詞： 氣體絕緣金屬封閉開關設備；緊固件；熱浸鍍鋅；不銹鋼
中圖分類號：TM564.2 文獻標識碼：B 文章編號：1007-3175(2014)05-0045-03
Discussion of External Fasteners Selection of Outdoor Gas Insulated Metal-Enclosed Switchgear Gas Chamber
CHEN Bo-rong, YU Hui-zhong, ZHOU Qing-qing, HUANG Zhi-qiang
（Zhejiang Switch Factory Co., Ltd, Quzhou 324000, China）
Abstract: Aiming at the rust problems of external fasteners of outdoor gas insulated metal-enclosed switchgear (GIS) gas chamber, this paper analyzed hot dip galvanizing, the surface rust and corrosion prevention measure commonly used for the existing carbon steel fasteners and the characteristics of Dacromet and stainless steel fasteners. This paper discussed the caution items of fastener design and installation and compared the rust and corrosion prevention characteristics of three kinds of fasteners. Combined with consideration of cost etc factors, this paper gives the economic and reasonable selection plan of external fasteners of GIS gas chamber.
Key words: gas insulated metal-enclosed switchgear; fastener; hot dip galvanizing; stainless steel
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