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jsspace 发表于 2014-6-27 08:38 
2 m% M# q1 d8 h6 m1 B; |以前小家电我记得SELV是不用做球压的; h1 \# m: ]$ y* y, Q* P
难道小家电就不用考虑过热？
" s1 j9 I, P. Y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。0 v3 u/ Z' G* S4 }! ]
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13.2 Resistance to heat （EN 60598:2008）
- a) R$ f! p' d# i& L4 fExternal parts of insulating material providing protection against electric shock, and parts of
; o6 l! ^5 h3 w1 G+ P5 iinsulating material retaining current-carrying parts or SELV parts in position shall be sufficiently
8 F" y# _: _1 a+ G r8 Nresistant to heat.* ^4 H6 ]* ` D
The ball pressure test does not have to be applied to plastic parts of a luminaire which provide
# Z5 c; t. ]' ]+ R X- X+ q$ Rsupplementary insulation.
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/ | d( H" J/ k- Q" G; Y) [1.2.154 t/ ` H0 z) z! [7 j) U
live part7 E; \) |$ _- ~. f0 ?8 ]
conductive part which may cause an electric shock in normal use. The neutral conductor is,however, regarded as a live part.; [( ]3 A, z; P6 j$ K$ Q
NOTE The test to determine whether or not a conductive part is a live part which may cause an electric shock is, s" c: V6 p0 F+ v; p4 c3 ?. ^1 l
given in Annex A.
' Q8 G8 m9 a& y: U. t, v; p' W) p- X====================================================================
# X0 q# f% Y( n" n; T# D. s30 Resistance to heat and fire (EN 60335-1:2012)
9 W( z2 P( [% ]0 F! p30.1 External parts of non-metallic material, parts of insulating material supporting live5 X# K, g# k. {
parts including connections, and parts of thermoplastic material providing supplementary
9 C+ T. g" K- Z$ r) C: q ?. Pinsulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration8 l# R1 [ c9 c5 q# a+ H7 a) _+ O
could cause the appliance to fail to comply with this standard.) S; C8 ?, m" b& T/ O8 R) g
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.2 P& V! D( n: I: }
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3.6.41 w4 Q9 N! s0 t+ M$ ]: A! `1 o, ~% J
live part
" B: d" r; k3 Oconductor or conductive part intended to be energized in normal use, including a neutral
s' L" N3 w- j6 P, S* ~conductor but, by convention, not a PEN conductor% x v5 ]: ^7 k$ C4 v
NOTE 1 Parts, accessible or not, complying with 8.1.4 are not considered to be live parts.
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