灼热丝测试

yyfyqzy

广东安规检测
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& J( _8 o% \6 ]% m, B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？
9 f0 F3 B3 ]0 P/ Y( U6 `" T做什么标准？
) G. r" @" L/ l6 R; V$ J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：
, u4 b% x5 f: G& i) b) b1 G2 E
Parts of non-metallic material shall be resistant to ignition and spread of fire.
$ S2 u. r  k# t0 V: C7 d- fThis 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）

6 I2 L5 [2 e! G" [
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
3 {) J2 l0 b" B! `1 B0 S; yof 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
4 b# j% d; I% T" B) t5 k* c. Q2 y, Fflammability 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,
– 650 °C, for other connections.
9 \4 W7 y7 b6 C' @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
$ X& [! c9 |) T/ Zpreferred value specified in IEC 60695-2-12 that is no thicker than the relevant part.
1 ~; x& L; |5 BNOTE 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.
" R) d& Y( K5 J, ?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
3 Z/ P; x$ h. o8 q7 s) rmaterial with the shielded material in place and not directly to the shielded material.
& `: _8 c  e: f; {, _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,
6 i; g8 e( t! J# |– 650 °C, for other connections.
" U) O: `1 e" `3 E: ]# }/ ^NOTE 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.
This test is not applicable to:
– parts supporting welded connections;
– parts supporting connections in low-power circuits described in 19.11.1;
– soldered connections on printed circuit boards;
0 o' o% c+ Q) `" y' L, p+ Q0 A– connections on small components on printed circuit boards;
and parts within 3 mm of any of these connections.
% |8 ^1 n$ d1 C3 f) tNOTE 4 Examples of small components are diodes, transistors, resistors, inductors, integrated circuits and capacitors not directly connected to the supply mains.
It is also not applicable to:
– hand-held appliances;
" E! d' b, H6 w0 w, @– appliances that have to be kept switched on by hand or foot;
8 t* \# |- K' }1 }! X: y– 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
  E4 _; m' {/ Z3 T. L, _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，
6 _: I/ ^1 a+ s8 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  :
5 }) W  A1 l, x/ p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。

! s4 ?( Y* w0 I. 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  :




5 `+ M5 V, e9 ]" Y4 P3 j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