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題 名 | A Comparison of IEC 479-1 and IEEE Std 80 on Grounding Safety Criteria=IEC 479-1和IEEE Std 80兩種接地安全標準之比較 |
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作 者 | 李建興; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷 期 | 23:5 1999.09[民88.09] |
頁 次 | 頁612-621 |
分類號 | 448.345 |
關鍵詞 | 接地安全標準; IEC479-1標準; IEEE Std 80標準; Permissible body current; Body resistance; Permissible touch and step voltages; Contact resistance; |
語 文 | 英文(English) |
英文摘要 | This paper provies a comparison of the safety criteria of two widely accepted standards, i.e., IEC 479-1 and IEEE Std 80. The two standards differ in their definition of the permissible body current and their definition of body resistance. Another difference is that the IEC 479-1 does not provide guidance on human feet/soil contact impedances. It tacitly assumes that these impedances can be computed by the designer. This paper includes a comprehensive study of permissible touch and step voltages under these two standards for a wide range of conditions which enables direct comparison of the two standards. It is shown that differences exist. These differences are quantified in this paper. |
本系統中英文摘要資訊取自各篇刊載內容。