户外GIS气室外用紧固件的选用 

陈伯荣，俞慧忠，周庆清，黄志强 
(浙江开关厂有限公司，浙江 衢州 324000) 
 

摘 要： 针对户外气体绝缘金属封闭开关设备气室外用紧固件的生锈问题，分析了现阶段碳钢紧固件常用的三种表面防锈防腐处理措施热浸镀锌和达克罗特性及不锈钢材质紧固件的特性，讨论了紧固件设计安装时应注意的事项，并比较了这三类紧固件的防锈防腐特性，综合考虑成本等因素后，给出了户外气体绝缘金属封闭开关设备气室外用紧固件比较经济合理的选用方案。
关键词： 气体绝缘金属封闭开关设备；紧固件；热浸镀锌；不锈钢
中图分类号：TM564.2 文献标识码：B 文章编号：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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