灼热丝测试

yyfyqzy

广东安规检测
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) Q4 d  f$ r$ E9 F4 z$ c0 Y: \- Y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？
5 o1 K8 ~" W* K( n( V- ^7 P9 p5 _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？
( {  p7 p4 q  F1 ]4 O& T3 A, W是什么產品？請將問題講明！

barry

glow-wire test 的总定义：
) b3 g$ ]1 J7 _' Q
* R" ?- M( w1 K+ pParts of non-metallic material shall be resistant to ignition and spread of fire.
; i" u/ T) b1 O3 R! L+ 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）


- Q! D* _( b6 O7 h6 J再看：

; G0 e- C4 t/ e* Y. O9 c0 w* Y9 L5 ?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
of 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
9 O9 T, L4 A* d/ \, p. f. i– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
– 650 °C, for other connections.
, S  a6 Q4 S& g, s6 @- E0 m) M& pIf 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 q0 V& G. h" N! o2 P4 tNOTE 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
material with the shielded material in place and not directly to the shielded material.
' L% [* V" z; {; k' P6 bWhen 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,
– 650 °C, for other connections.
& G7 S( E3 q3 m5 JNOTE 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:
) K. _! l$ V. W; ~& F6 U: W– parts supporting welded connections;
# i8 n! \/ h. y, f# r– parts supporting connections in low-power circuits described in 19.11.1;
– soldered connections on printed circuit boards;
8 X3 z& ]- S+ d6 k: ?– connections on small components on printed circuit boards;
! ~  B3 W1 t) C6 P3 V7 k! Gand parts within 3 mm of any of these connections.
# z* n4 g1 `4 w; t* [* E: [NOTE 4 Examples of small components are diodes, transistors, resistors, inductors, integrated circuits and capacitors not directly connected to the supply mains.
$ v% ^8 z9 e9 H" x7 M6 z% GIt is also not applicable to:
– hand-held appliances;
– appliances that have to be kept switched on by hand or foot;
– appliances that are continuously loaded by hand.
; g6 o3 P+ [1 F（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
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  :
" p# A! a  y. J( z  H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。

% p9 M" ^- r0 `2 o
# V, t& J8 A$ O3 e) 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。

seasunsky

引用第9楼yyfyqzy于2007-06-02 14:12发表的  :




; Y9 y0 ?( w5 Y3 n  l/ h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