Comparing the standards IEC 60335-2-35:2002+A1:2006 and IEC 60335-2-35:2012, this paper discusses the earthing requirements of clause 27.1 of GB 4706.11-2008 instantaneous water heaters standard. Then it clarifies the misunderstanding may exists. Finally, it analyzes some real examples.%本文结合IEC 60335-2-35:2002+A1:2006,IEC 60335-2-35:2012标准探讨了GB 4706.11-2008快热式电热水器标准中27.1条款接地的要求,澄清了可能存在的误解,并分析了具体案例。
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