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jsspace 发表于 2014-6-27 08:38 
+ C4 y( m6 W8 H. C以前小家电我记得SELV是不用做球压的
C0 Y5 E6 B' M$ v8 |6 E难道小家电就不用考虑过热？
2 t4 ~, A$ K; ^; _可以对比下两个标准的描述：家电没有提及SELV, 符号8.1.4要求的不算live part,也就不用做， 灯具直接提及SELV也需要，我想主要是从使用环境上考虑。灯具允许直接与可燃物接触。# R' k T4 G5 G8 t6 e# s
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13.2 Resistance to heat （EN 60598:2008）4 z9 l5 m5 ~+ j' L
External parts of insulating material providing protection against electric shock, and parts of+ L# ]& ]; }7 j: g/ O C
insulating material retaining current-carrying parts or SELV parts in position shall be sufficiently ]1 w3 X/ i- J, H9 [ L. m8 f
resistant to heat.; ~7 z2 }% A' P& f' E/ v
The ball pressure test does not have to be applied to plastic parts of a luminaire which provide, a9 x7 a$ P+ `: h( K
supplementary insulation.+ [. h+ J7 a }9 u
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conductive part which may cause an electric shock in normal use. The neutral conductor is,however, regarded as a live part.0 P' F" Q& V1 U
NOTE The test to determine whether or not a conductive part is a live part which may cause an electric shock is
7 T- g4 g) y( G- M L, w4 o/ x9 zgiven in Annex A.
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30 Resistance to heat and fire (EN 60335-1:2012)9 O ?' L8 A2 Q1 P7 S
30.1 External parts of non-metallic material, parts of insulating material supporting live
J% T0 y1 @( @ v# tparts including connections, and parts of thermoplastic material providing supplementary' J: P) S" B3 _4 Y3 [$ v
insulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration& ?' P- z# F4 L8 m% K
could cause the appliance to fail to comply with this standard.
1 Y# b: T( V! m. B; H8 XThis requirement does not apply to the insulation or sheath of flexible cords or internal wiring.
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K8 g+ J2 O& O% D8 Z! m c" clive part9 ^$ U0 T" m+ G5 q1 Q; B# c
conductor or conductive part intended to be energized in normal use, including a neutral# w' a; C7 k) M* L
conductor but, by convention, not a PEN conductor
( c$ C1 W* u7 Y" {NOTE 1 Parts, accessible or not, complying with 8.1.4 are not considered to be live parts.
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