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yearl 发表于 2013-7-23 10:41 " u% g$ I" E- X& t; {* m* f
按新标准,奶嘴应该属于小部件,不做灼热丝。
; U4 a9 H( ]& f) v V: `8 L0 q不是小部件不做灼热丝,很多人都说小部件不用做灼热丝,那是断章取义的理解,其实小部件不用做灼热丝是有前提要求的,请参看30.3.2
& c" D4 a$ Q2 G9 }5 B1 X: l$ ?The glow-wire test of IEC 60695-2-11 with a test severity of 750 !C or 650 !C as appropriate,: p$ ?' w7 r. s
is also not carried out on small parts. These parts shall
8 m! a- T2 Q3 _, Y& ]+ t2 A5 B comprise material having a glow-wire ignition temperature (GWIT) of at least 775 !C or
& w0 t2 u* J( C; G2 W7 ]% o" X675 !C as appropriate, or0 I' }; @! C8 O# G# Z+ E' @$ j2 ~
comprise material having a glow-wire flammability index (GWFI) of at least 750 !C or% o+ p9 L1 @. T0 R0 U3 |: _
650 !C as appropriate, or
+ V q- G- f& G, J comply with the needle-flame test (NFT) of Annex E, or) S, K# m& ~6 t; x8 S5 q+ v
comprise material classified as V-0 or V-1 according to IEC 60695-11-10 provided that the
7 h9 B3 |5 Y' T- j3 ptest sample used for the classification was no thicker than the relevant part of the3 e! E1 o( R+ P6 C
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