灼热丝测试

yyfyqzy

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2 Q5 k1 b' T& H, x+ w7 c" t大家好，有个问题请教
是这样，我的电热丝和引线用奶嘴夹起来，然后固定在胶壳柱子上，但认证单位说要做650度的灼热测试，请问各位，是怎么回事。谢谢诶

seasunsky

什么产品？
$ ^3 a5 a) N. ~" ?1 N- r* l做什么标准？
4 e0 n6 ~! r( W7 F胶壳柱子还是奶嘴做650℃？

yyfyqzy

洗脚盆，说奶咀要做灼热测试，做CE

yxd2008

哪個認証單位？產品需要做什么認証？
/ t  J- ]  b) {是什么產品？請將問題講明！

barry

glow-wire test 的总定义：
3 T# B% p3 q/ p
Parts of non-metallic material shall be resistant to ignition and spread of fire.
0 y8 B' J: K$ \+ u* n. LThis requirement does not apply to decorative trims, knobs and other parts unlikely to be ignited or to propagate flames that originate inside the appliance.    （IEC 60335-1-2006 Clause 30.2）


再看：

" Q+ W" h" V) X5 I/ p( i/ G30.2.2 For appliances that are operated while attended, parts of non-metallic material supporting current-carrying connections, and parts of non-metallic material within a distance
& u  U) t2 K0 Y+ ~8 n& O# Q6 kof 3 mm of such connections, are subjected to the glow-wire test of IEC 60695-2-11.
However, the glow-wire test is not carried out on parts of material classified as having a glowwire
flammability index according to IEC 60695-2-12 of at least
4 {  p5 ]# q3 C( u7 N– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
% J6 |' R0 f8 L+ d3 L$ z– 650 °C, for other connections.
! ?. m! x, |8 z# M5 }) \" C8 ~5 nIf the glow-wire flammability index is not available for a sample with a thickness within
9 A) H6 r, }& R2 D+ J+ Z3 T± 0,1 mm of the relevant part, then the test sample shall have a thickness equal to the nearest
preferred value specified in IEC 60695-2-12 that is no thicker than the relevant part.
NOTE 1 The preferred values in IEC 60695-2-12 are 0,75 mm ± 0,1 mm, 1,5 mm ± 0,1 mm and 3,0 mm ± 0,2 mm.
7 P/ ~; \8 v( ?6 o8 B0 G# yWhere a non-metallic material is within 3 mm of a current carrying connection, but is shielded
, R) W9 K! d2 ]3 D/ ?: Zfrom the connection by a different material, the glow-wire test of IEC 60695-2-11 is carried out
6 [) q3 S% \2 A$ hat the relevant temperature with the tip of the glow-wire applied to the interposed shielding
3 U. L% r. i4 q3 Z: a+ zmaterial with the shielded material in place and not directly to the shielded material.
When the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are
7 A* K# h5 d$ _  l& F& U5 l7 C* d8 @– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,
– 650 °C, for other connections.
NOTE 2 Contacts in components such as switch contacts are considered to be connections.
1 I% y* ]# s2 T7 y/ @( ]0 |# ~NOTE 3 The tip of the glow-wire should be applied to the part in the vicinity of the connection.
This test is not applicable to:
– parts supporting welded connections;
% p/ q( @8 b- N5 I: C( a1 y" @– parts supporting connections in low-power circuits described in 19.11.1;
– soldered connections on printed circuit boards;
– connections on small components on printed circuit boards;
! ~( Y- Y$ m. R, Y, J, t! Fand parts within 3 mm of any of these connections.
NOTE 4 Examples of small components are diodes, transistors, resistors, inductors, integrated circuits and capacitors not directly connected to the supply mains.
6 m0 I4 y+ |9 v) GIt is also not applicable to:
( F" a7 G" Z2 @+ z– hand-held appliances;
" r2 _# n+ Z3 ?– appliances that have to be kept switched on by hand or foot;
% u3 a% P. J* |" ^2 L– appliances that are continuously loaded by hand.
（IEC 60335-1-2006 Clause 30.2.2）

seasunsky

引用第3楼yyfyqzy于2007-06-02 08:18发表的  :
- N$ {- X7 x2 k+ a7 @" B洗脚盆，说奶咀要做灼热测试，做CE

这个肯定要做灼热丝的啊
就是根据有人无人照看
以及通过电流大小决定做哪个等级的了

yyfyqzy

哦，他是说根据EN60335-1 Clause30.2.2规定，
可是我们的脚盆胶料不是防火料，所以我想如果要做灼热测试，我是否可以在奶咀上套一个纤维管，还感谢大家告诉我，这样行不？

wiltoncou

套纤维管是没有用的，如上5楼的红色字部分，请注意，3MM是没有任何限制的，意即：不管多少层，有没有缝，只要在上述连接（奶咀内部引线与电热丝的连接）3MM以内的任何胶料（哪怕有10层20层）均需作灼热丝测试，0.5A以上的作750C，其他（0.5A以下）则作650C。

yyfyqzy

引用第8楼wiltoncou于2007-06-02 13:47发表的  :
套纤维管是没有用的，如上5楼的红色字部分，请注意，3MM是没有任何限制的，意即：不管多少层，有没有缝，只要在上述连接（奶咀内部引线与电热丝的连接）3MM以内的任何胶料（哪怕有10层20层）均需作灼热丝测试，0.5A以上的作750C，其他（0.5A以下）则作650C。

" H7 {8 ]* [- o1 k$ c/ E5 P
" h/ t, f4 q7 ^7 C, w$ @我意思是说，套上纤维管，因为纤维管可以通过650度的灼热测试，这样就没有安全问题了，如不套那很可能过不了。

seasunsky

引用第9楼yyfyqzy于2007-06-02 14:12发表的  :
, ^5 w/ M3 U* Y, y6 O- D( r& m
% i) y/ X* O5 J
0 ~/ m. v4 j* p2 _& ~" V3 R
0 ^" u; W' S0 A3 \2 t9 G) \
我意思是说，套上纤维管，因为纤维管可以通过650度的灼热测试，这样就没有安全问题了，如不套那很可能过不了。

好点材料的奶嘴750℃没什么大问题的
' N- O% d6 K& g6 t/ l或者买认证过的