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jsspace 发表于 2014-6-27 08:38  6 ]% P7 Q. F( S8 j* O
以前小家电我记得SELV是不用做球压的
?/ d( E6 D& z1 }; } g难道小家电就不用考虑过热？
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 V/ `8 O) U% \
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13.2 Resistance to heat （EN 60598:2008）
. L* a+ P: ^5 x$ v9 t- m) C/ r" CExternal parts of insulating material providing protection against electric shock, and parts of
, I3 |% | p2 Tinsulating material retaining current-carrying parts or SELV parts in position shall be sufficiently
' V( g7 k0 s s& q/ s) v& |- Q3 Kresistant to heat.
. A1 s) b7 n" i: i8 D1 ~) d+ gThe ball pressure test does not have to be applied to plastic parts of a luminaire which provide
9 u/ N: C" K& C. B( Tsupplementary insulation.- ? q6 X! G5 t6 o
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1.2.15% `1 ~* G6 r% f; g# ~( P
live part
4 _6 G% j- A8 {: {2 iconductive part which may cause an electric shock in normal use. The neutral conductor is,however, regarded as a live part.' w [/ Y1 v. [' B9 y" _7 n- }
NOTE The test to determine whether or not a conductive part is a live part which may cause an electric shock is
/ s* c5 m; \! ?1 a0 U( R: ]/ ^given in Annex A.
- ^, e' `0 J. l% _& U+ Z% M1 ^====================================================================. j1 h2 L( s3 ], I
30 Resistance to heat and fire (EN 60335-1:2012)
7 G' y y" K9 m6 A/ K30.1 External parts of non-metallic material, parts of insulating material supporting live; O+ v/ S2 g- Y# z9 ?5 U, E9 K
parts including connections, and parts of thermoplastic material providing supplementary
8 U: I7 C3 e6 ~0 o' _* j$ Finsulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration/ E' U) I/ o% O
could cause the appliance to fail to comply with this standard.% `1 k! f/ }8 k. R
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.
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live part! a3 d7 |3 k) [3 {6 k/ w1 ?
conductor or conductive part intended to be energized in normal use, including a neutral( `( n: @8 ^9 v7 N p0 u$ H
conductor but, by convention, not a PEN conductor4 ?$ _% g) [. E* h
NOTE 1 Parts, accessible or not, complying with 8.1.4 are not considered to be live parts.
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发表于 2014-6-27 10:58
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