功能接地使用保护接地标识是否可以？旧版EN60335认证报告的有效期？
本帖最后由 xuedao21 于 2014-6-6 00:01 编辑家电一个比较常见的问题，内部的功能接地标识都使用带圈的接地符号，而根据60335规定这是保护接地，应该是电源线的地线接到机壳的位置可以用。但其它位置似乎没有规定，可以混用吗？
内部接地与保护性接地端子如果拧在一个螺丝上，违反标准哪一条？
另外，EN60335-1：2012将于2014年11月21日起强制执行，那按照旧版EN60335认证的认证报告如何处理，有效期多长时间？
谢谢指教。
旧版 60335 证书, 如不更新, 即属无效 测试报告要跟着标准一起升级啊 内部接地与保护性接地端子如果拧在一个螺丝上，违反标准哪一条？
内部接地是什么作用？如是功能接地，是不能与保护接地连在一起的。如是用于安全保护，则可以与保护接地连在一起。 plmijb 发表于 2014-6-6 09:32 static/image/common/back.gif
内部接地与保护性接地端子如果拧在一个螺丝上，违反标准哪一条？
内部接地是什么作用？如是功能接地，是 ...
60335对此有规定吗？我知道不可以 但找不到对应条款 只能功能接地和保护接在的定义上去理解。cl.27.1 中规定 0、II 类、III类器具不能提供保护接地。 II/III 类器具可以组装用于功能的接地。 plmijb 发表于 2014-6-6 09:32 static/image/common/back.gif
内部接地与保护性接地端子如果拧在一个螺丝上，违反标准哪一条？
内部接地是什么作用？如是功能接地，是 ...
在产品内部，保护接地和功能接地的端子可以连接在一起，前提是，功能接地电路应当用双重，加强绝缘等方式和危险带电部件隔离。 功能接地与保护接地不能接在一起。功能接地要满足加强绝缘的要求，而保护接地只需要满足基本绝缘的要求。IEC 60335-1:2013有讲到。
IEC与EN是相通的。而且27章有讲到。 zhangfc 发表于 2014-12-22 21:53 static/image/common/back.gif
功能接地与保护接地不能接在一起。功能接地要满足加强绝缘的要求，而保护接地只需要满足基本绝缘的要求。IE ...
我看了下标准，标准中提到功能接地都特定指2类器具，3类器具。第7章指出功能接地的符号要接在2,3类器具的后面。那么，对于1类器具的功能接地，是否适用么？ 本帖最后由 ljh809809 于 2015-8-17 17:18 编辑
标准是相通的。可以参考这个 IEC60950-1:2005+A1:2009+A2:2013说得好清楚了。
2.6.2 Functional earthing
If FUNCTIONAL EARTHING of accessible or inaccessible conductive parts is necessary, all of the
following apply to the FUNCTIONAL EARTHING circuit:
− the FUNCTIONAL EARTHING circuit shall be separated from parts at HAZARDOUS VOLTAGES in
the equipment by either:
• DOUBLE INSULATION or REINFORCED INSULATION; or
• a protectively earthed screen or another protectively earthed conductive part, separated
from parts at HAZARDOUS VOLTAGES by at least BASIC INSULATION; and
− it is permitted to connect the FUNCTIONAL EARTHING circuit to a protective earth terminal or
to a PROTECTIVE BONDING CONDUCTOR; and
− wiring terminals to be used only for FUNCTIONAL EARTHING shall not be marked by the
symbol (60417-IEC-5017) or by the symbol (60417-IEC-5019), except that, where a
wiring terminal is provided on a component (for example, a terminal block) or
subassembly, the symbol is permitted; and
NOTE Other markings such as one of the symbols, (IEC 60417-5018 (DB:2002-10)) or
(IEC 60417-5020
(DB:2002-10)), if appropriate, are permitted.
− for internal FUNCTIONAL EARTHING conductors, the colour combination green-and-yellow
shall not be used except in multipurpose preassembled components (for example, multiconductor
cables or EMC filters); and
NOTE Other markings such as one of the symbols, (IEC 60417-5018 (DB:2002-10)) or
(IEC 60417-5020
(DB:2002-10)), if appropriate, are permitted.
− for internal FUNCTIONAL EARTHING conductors, the colour combination green-and-yellow
shall not be used except in multipurpose preassembled components (for example, multiconductor
cables or EMC filters); and
− in a power supply cord where a conductor having green-and-yellow insulation is used only
to provide a FUNCTIONAL EARTHING connection:
• the equipment shall not be marked with the symbol (IEC 60417-5172 (DB:2003:02));
and
• there are no requirements other than those in 3.1.9 regarding the termination of this
conductor at the equipment end.
For equipment having a power supply cord where a conductor with green-and-yellow
insulation is used only to provide a FUNCTIONAL EARTHING connection:
− the equipment shall not be marked with the symbol , IEC 60417-5172 (2003-02); and
− the equipment may be marked with:
• the symbol , IEC 60417-5018 (2011-07); or
• the symbol , IEC 60417-6092 (2011-10).
These symbols shall not be used for CLASS I EQUIPMENT.
There are no requirements other than those in 3.1.9 regarding the termination of this
FUNCTIONAL EARTHING conductor at the equipment end.
Compliance is checked by inspection.
图片出不来，有兴趣可以看原文标准。
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