灼热丝测试

yyfyqzy

广东安规检测
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IEC60335试验指甲

, |/ z) \. |( ]+ T$ y9 e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？
' I# h: U: U3 p1 O做什么标准？
. s, w4 O0 g* n/ _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？
& H, d+ k: ?* f* p9 y" G; B是什么產品？請將問題講明！

barry

glow-wire test 的总定义：

, @3 d. o& o/ v, BParts of non-metallic material shall be resistant to ignition and spread of fire.
& z4 M4 ?; J/ v) V6 ]8 f. ?* k4 l0 aThis 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）

1 }+ z3 V2 {/ E0 w/ F6 Q5 g
再看：
- P: P8 Q( d8 `3 U- m# y
" g) @8 @( S0 ?0 v, y( l2 o30.2.2 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
8 v) K0 E1 \- Rof 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
- R9 X) Z. s: hflammability index according to IEC 60695-2-12 of at least
* [" I- T2 V# W) S– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
– 650 °C, for other connections.
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.
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.
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
+ u. {9 J1 @4 ?1 Kat the relevant temperature with the tip of the glow-wire applied to the interposed shielding
material with the shielded material in place and not directly to the shielded material.
( I4 u6 K8 n# F/ U! \+ D/ C0 [When the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are
– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,
3 }4 l6 V* ?# ^' v* D: K– 650 °C, for other connections.
  I) w5 j- p7 F/ M6 ANOTE 2 Contacts in components such as switch contacts are considered to be connections.
NOTE 3 The tip of the glow-wire should be applied to the part in the vicinity of the connection.
" L# X: P% s0 }7 z8 H# MThis test is not applicable to:
5 K, b9 h4 m/ \- g( k$ @  X* y, q8 x– parts supporting welded connections;
– parts supporting connections in low-power circuits described in 19.11.1;
0 H- ?$ z% l1 ~: D7 N– soldered connections on printed circuit boards;
$ f5 l7 J/ o, S; [8 ?( i: P– connections on small components on printed circuit boards;
and 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.
/ `% ~* P, `1 M& k  d+ @+ ?! ?; M7 EIt is also not applicable to:
. R5 t+ B% S9 R  B+ [6 X– hand-held appliances;
– appliances that have to be kept switched on by hand or foot;
3 h4 W% Z; S; n  D/ w3 q– 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  :
0 N7 I) O/ O# g0 m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
& d( \  ]" L# F8 C. [% _) b3 S就是根据有人无人照看
' A: s( }8 ]% J! ^2 y6 m; y0 p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。

' z, p* _& M  {- f  B# D

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  :
/ o/ ^2 K7 P6 ]# z- `, k: E
) G* L2 n, v0 b8 @) z: n+ d


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
或者买认证过的