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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：
! J5 g1 A% A8 H g+ g# T23.5 The insulation of internal wiring that is subjected to the supply mains voltage shall withstand the electrical stress likely to occur in normal use.4 h# J) H* h# o# W5 I3 g7 i8 N$ ]
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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.% R: f' G0 I0 }# h1 Y
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.( s6 V: a: K M& O* j+ c8 ]
NOTE 1 If the basic insulation of the conductor does not fulfil one of these conditions, the conductor is considered to be bare.
: C$ I8 |+ Y3 g4 S5 J% LNOTE 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.
' A7 D# z% o; d+ D1 f; r9 RA single layer of internal wiring insulation does not provide reinforced insulation. m6 N4 ~. v& |6 B7 d4 |+ j% ~
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$ k3 H, X( D5 s, D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。% W' P. \! u ~' ~ X2 S9 }8 m
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发表于 2018-11-26 22:57
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