灼热丝测试

yyfyqzy

广东安规检测
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; @0 z& V" M3 F+ d: c* k6 H5 `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？
" c3 h( G* N8 e做什么标准？
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？
是什么產品？請將問題講明！

barry

glow-wire test 的总定义：
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0 p& |- c$ x& w7 fParts of non-metallic material shall be resistant to ignition and spread of fire.
* x! W& j7 P& t# R! tThis 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）

# U2 {; b. h9 [
再看：

30.2.2 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
( }* ], O+ u6 sof 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
+ _. E  E$ L! n5 j2 O9 i$ iflammability index according to IEC 60695-2-12 of at least
– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
7 X; e% T* ~6 m7 Y8 T! Y; h– 650 °C, for other connections.
; x% V  Q7 l7 t2 }9 `If the glow-wire flammability index is not available for a sample with a thickness within
± 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.
6 f/ n+ }$ F! ?) k$ L/ p  FNOTE 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.
Where a non-metallic material is within 3 mm of a current carrying connection, but is shielded
from the connection by a different material, the glow-wire test of IEC 60695-2-11 is carried out
at the relevant temperature with the tip of the glow-wire applied to the interposed shielding
7 W) O# R! u( d4 [4 h* zmaterial with the shielded material in place and not directly to the shielded material.
% ]8 m) G; b( g7 \( @6 u4 _When the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are
* J/ A. l' p+ z/ m( [, u– 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.
3 C; t* k' Z% g3 e" `* u& nNOTE 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:
& U6 [0 a9 R) v' A– parts supporting welded connections;
! A. a! z0 n( D5 L– parts supporting connections in low-power circuits described in 19.11.1;
2 W0 r- j9 P; k3 i0 @* X: p– soldered connections on printed circuit boards;
( Y% [) W, \* D1 K+ p. h– connections on small components on printed circuit boards;
and parts within 3 mm of any of these connections.
2 t) k$ H, \0 h4 ~7 G8 ONOTE 4 Examples of small components are diodes, transistors, resistors, inductors, integrated circuits and capacitors not directly connected to the supply mains.
3 H6 k% c* X9 ]( J. W% x! @* w9 ?3 XIt is also not applicable to:
; J1 `. M6 i1 K/ B– hand-held appliances;
– appliances that have to be kept switched on by hand or foot;
7 b% w( z3 F! b- z– 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  :
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
  j  A- c; }: Y3 q3 b9 C( _- x2 ]就是根据有人无人照看
6 R! B$ b! G$ `5 U; C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，
6 @2 v8 \% w9 \4 M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。

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  :
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% O7 j" H) J" Y; u- ~; d* V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
( }+ I" d" v/ f9 ~或者买认证过的