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本帖最后由 ylgc123 于 2017-3-29 10:23 编辑 8 [8 a/ x+ E, [3 E
( a3 [$ {; b2 J( `7 k7 bed6.1 3.3.13 % t q+ ]3 C- h& s: n; x- \4 f
class III construction0 V5 ?( A4 {2 N- q5 T
part of an appliance for which protection against electric shock relies upon safety extra-low
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0 L1 P$ g. Q9 R7 O# XNOTE 1 Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4.
, ?3 V3 L0 v. U8 v: e4 ]NOTE 2 If the main part of the appliance operates at SELV and is delivered together with a detachable power supply unit then this main part of the appliance is considered to be of class III construction in a class I appliance or class II appliance as appropriate.
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+ H& a, h8 `5 b6.1 Add the following to the requirement as a new second paragraph:" W/ J% [" ]9 S, p* x" v' l$ B4 U
If an appliance consists of a part of class III construction and a detachable power supply part, the complete appliance is classified as a class I appliance or class II appliance in accordance with the classification applicable to its detachable power supply part7 k4 J0 P4 y* i0 V: `
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上面两段内容是是60335-1 ed6.1 CL3.3.1和ed6.2 CL6.1中的语句。虽然在ed6.2中删除了3.3.13的note2,但是6.1中增加了类似说明,在正式器具分类中将其归类为I类或II类器具。
/ Q! C# s$ W4 u( }4 v6 |$ u. n) q" F标准上很明确的说明了如果器具有一个 a detachable power supply供电,那么器具整体式属于II类器具或I类器具,主体部分认为是III类结构。 c- `$ I3 `) ?- {" ~& b
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既然有可能器具输入II类器具,那么为什么不打 回型 符号?
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