60335单层内部线绝缘是否一定不可以当加强绝缘？

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IEC60335试验指甲

根据60335最新版标准条款23.5最后一句， 单层内部线绝缘不提供加强绝缘：
+ h2 M4 x7 }' ?* w& r2 w23.5 The insulation of internal wiring that is subjected to the supply mains voltage shall withstand the electrical stress likely to occur in normal use.
: |. w, c) ?6 i6 v
The basic insulation shall be electrically equivalent to the basic insulation of cords complying with IEC 60227 or IEC 60245 or comply with the following electric strength test.
A voltage of 2 000 V is applied for 15 min between the conductor and metal foil wrapped around the insulation. There shall be no breakdown.
# J6 G3 ?2 R% D0 A3 _5 E0 m. CNOTE 1 If the basic insulation of the conductor does not fulfil one of these conditions, the conductor is considered to be bare.
NOTE 2 For class II construction, the requirements for supplementary insulation and reinforced insulation apply except that the sheath of a cord complying with IEC 60227 or IEC 60245 may provide supplementary insulation.
A single layer of internal wiring insulation does not provide reinforced insulation.



假如单层内部线绝缘的厚度达到了2mm, 也不可以当加强绝缘吗？表示极度疑惑。

ylgc123

现在标准的说法是不行ed5.1之后就明文规定了~