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jsspace 发表于 2014-6-27 08:38 5 ]/ N0 ? |4 ~6 _6 a& V
以前小家电我记得SELV是不用做球压的
( W6 ^' {2 w" h" J' I! s$ m4 T# d, \难道小家电就不用考虑过热?
. h7 H: E& ~: v# n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。$ X# ?1 t* ~) L) i. N; o0 W
7 G# |7 T0 }3 A) @13.2 Resistance to heat (EN 60598:2008)
' q3 r$ P' `: z9 T+ n5 AExternal parts of insulating material providing protection against electric shock, and parts of g: |- J k6 c4 }
insulating material retaining current-carrying parts or SELV parts in position shall be sufficiently7 N6 J1 }' @; [
resistant to heat.
# R. H0 G% j1 J) p/ o+ }1 l4 q+ HThe ball pressure test does not have to be applied to plastic parts of a luminaire which provide* g- e+ I" ^2 \% q
supplementary insulation. M+ u; F6 L: Y- L; Y( M
( E6 b: P' b/ y, o0 f1.2.15# V0 a: ^ _0 {8 k4 F' q
live part
: y+ T" | O5 o9 E0 Wconductive part which may cause an electric shock in normal use. The neutral conductor is,however, regarded as a live part.* o! g; V9 [- D# h. {$ A& b& y$ g
NOTE The test to determine whether or not a conductive part is a live part which may cause an electric shock is0 Z9 k9 E. m; q/ k( O2 V
given in Annex A.
5 @% R# b: z \8 P) r4 M4 d====================================================================7 u$ J) h$ s+ d$ l# _, d! q
30 Resistance to heat and fire (EN 60335-1:2012); K1 X, Z8 J c4 ?& Z; ^. p0 Y
30.1 External parts of non-metallic material, parts of insulating material supporting live
( G! f; Z( ]0 h! ^5 Wparts including connections, and parts of thermoplastic material providing supplementary
9 Z. P7 H) C0 Zinsulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration
1 W6 `6 p; u% [6 S( Fcould cause the appliance to fail to comply with this standard.; k/ j) ~0 G* F5 J9 B
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.* f B6 I p" R' {
5 J4 e) B3 H* E1 U$ P% I4 P
3.6.4
# e& J" I; D2 Z R7 A- G, }0 Glive part
0 ^) D& w( c9 j# s* `conductor or conductive part intended to be energized in normal use, including a neutral
" ^# @- f& e% f& a; Kconductor but, by convention, not a PEN conductor* y n% y# B/ C8 @2 M) A2 L
NOTE 1 Parts, accessible or not, complying with 8.1.4 are not considered to be live parts.% Q8 T s4 d1 m1 h) I# ]
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