This paper expounds requirements of special industry electric equipment in explosive areas, and presents protection grade and structure requirement of electric equipment.
论述了特殊工业电气设备在爆炸性场所使用的要求，并介绍了电气设备的防护等级和结构要求。
The grade for explosive-proof reaches advanced level of the same products in foreing countries.
其防爆等级达到了国外同类产品的先进水平。
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