灼热丝测试

yyfyqzy

广东安规检测
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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 E$ b/ w) f! l3 k! a做什么标准？
# s2 f- k& ~7 Q$ f# v# o: Y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？
: s, k: w1 y8 g) U是什么產品？請將問題講明！

barry

glow-wire test 的总定义：

Parts of non-metallic material shall be resistant to ignition and spread of fire.
/ M# j3 d7 X* O8 r0 w9 }8 H, qThis 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）
4 e% z. V* V/ G% o" _( j9 J

" S% O0 s9 `. p3 b( U3 j2 [: ^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
4 k' U+ l* r, S, j0 B: R3 }1 t& |of 3 mm of such connections, are subjected to the glow-wire test of IEC 60695-2-11.
5 \" j" i# H4 B2 N2 WHowever, the glow-wire test is not carried out on parts of material classified as having a glowwire
3 G4 c/ e2 W" H$ z% Gflammability 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,
  x. ~  r+ q0 V$ X– 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
, [' a7 a  Q0 e, b0 S6 s/ t/ e3 Opreferred value specified in IEC 60695-2-12 that is no thicker than the relevant part.
* Y/ Q1 N0 X+ m) L. P3 G1 R3 F& t5 G1 NNOTE 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
* i# e. g- Q0 O0 V% {, [5 I4 yfrom 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
material with the shielded material in place and not directly to the shielded material.
- k9 W( s) S4 R  a) DWhen the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are
0 @$ Q8 u! Q3 k0 v- ^– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,
– 650 °C, for other connections.
! c0 y8 U9 t. x0 wNOTE 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.
+ p% \# C$ W* n* b) [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;
% b2 N' G  R+ |1 |% W) J/ ~, {5 `* F– connections on small components on printed circuit boards;
and parts within 3 mm of any of these connections.
( `4 e% x6 [6 ?8 cNOTE 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;
– appliances that have to be kept switched on by hand or foot;
5 {( \+ e" E) Q) T– 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  :
! z( n4 [2 n2 D' P! _6 i, g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，
" I/ h5 i/ }# ]# [; g5 c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  :
  A( U2 W( N3 n0 N
1 l$ o- n! \: V5 B" ~( @3 x1 B8 A

2 U. x! i+ e" `" ^5 x
! ^9 u( O: J$ q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