灼热丝测试

yyfyqzy

广东安规检测
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IEC60335试验指甲

, t& X2 _8 h6 H" N0 X4 Z大家好，有个问题请教
/ e4 e. A! L$ C$ J, C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？
7 K& C, h; Y! b9 T1 Z& G2 {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？
# ]6 K2 Y7 ]" o& c是什么產品？請將問題講明！

barry

glow-wire test 的总定义：

- f6 c! Y7 A5 u. Y+ v5 ?" `8 s- sParts of non-metallic material shall be resistant to ignition and spread of fire.
7 z. K* T' K" m. d3 w' O4 jThis 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 F5 G8 z, h6 J, {% W3 s1 ?
- V8 z- q6 Z, M9 p6 W
% N% H4 {5 z" H& @3 R& c0 P9 a再看：

! r* y; ?7 c9 G30.2.2 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.
& B9 i; R" e8 RHowever, 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
- T( a/ l7 l) |% L- q; R– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
9 Q! R* \: ~' K" ^' T# {– 650 °C, for other connections.
. k! P9 P+ C1 \! Y% b, iIf 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.
0 v% v$ \3 {, Z- b+ xWhere 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
9 R; }0 k. |( @* p; _: E$ v5 oat the relevant temperature with the tip of the glow-wire applied to the interposed shielding
  @. [' \* j7 F: M$ pmaterial with the shielded material in place and not directly to the shielded material.
$ M- s6 O+ i. z- gWhen the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are
, ?6 x$ [7 {# h* W1 l– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,
6 b% _) ?1 ]. @; Y: |# U: p– 650 °C, for other connections.
: G. W% C$ q, E5 J5 N4 R5 _7 Z0 qNOTE 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.
# S! }! m' J" WThis test is not applicable to:
– parts supporting welded connections;
– parts supporting connections in low-power circuits described in 19.11.1;
/ ^2 ^( Z- m% }" ]- h# b, U– soldered connections on printed circuit boards;
– connections on small components on printed circuit boards;
5 x" E: o. L: V4 `1 \4 l5 kand 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.
! I8 ]+ \" Y2 [4 q  W" b9 r. @: mIt is also not applicable to:
7 r+ X# H/ C% I+ P) `– hand-held appliances;
7 ]8 x% d2 l8 C0 x8 f– appliances that have to be kept switched on by hand or foot;
– 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
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  :
4 l7 B* v- L8 [- W  T: 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。

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( J- W' o" f: O% B
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  :


0 F8 q" ]/ w. @. X& \# `

! M/ q( r$ B1 d0 E4 B1 b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
( K! v: u4 P* ?或者买认证过的