关于灼热丝的知识,连接件3mm范围是怎么理解的

lds08080808

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

CL.30,说连接件3mm范围内都要做灼热丝,但是在连接件和绝缘材料之间加了挡板,那3MM还要考虑吗?如果还要考虑,那为什么中间加了挡板(防火材料),那就不用考虑做750灼丝了.

lds08080808

lds08080808

顶上去再钩个高手

obstinate

IEC 60335是告诉你什么时候做材料测试
1 F2 _4 Y6 @& ]/ aIEC 60695是告诉你怎么做材料测试

lds08080808

请问下IEC60695是什么标准的,我看的是IEC60335

lds08080808

那850的还做吗

kendy

30.2.2 For appliances that are operated while attended, parts of non-metallic material
% \8 M) Q7 d/ i1 _! lsupporting current-carrying connections, and parts of non-metallic material within a distance
: h& l) N* _4 ^$ K  g) K* ~5 z6 S: [" dof 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
9 ]$ X4 _" z4 d* c& zflammability 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,
4 G7 ^) N2 a$ s& z: Q– 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
1 B+ w! Y# `6 f& ]: t5 Jpreferred 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.
( b% H6 n$ [, b: E, CWhere a non-metallic material is within 3 mm of a current carrying connection, but is shielded
1 ?. Q, P9 _: E- }8 o1 Z% [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
$ T$ s; d6 u! q  A  Omaterial with the shielded material in place and not directly to the shielded material.
When the glow-wire test of IEC 60695-2-11 is carried out, the temperatures are
# d- N9 u1 N0 ?& M9 A+ y% l' _– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,
) {/ i) x/ @" g4 [9 B– 650 °C, for other connections.
  _' C* M; E% q" ?如果中间挡板能经受住同等温度的灼热丝测试，则不需要对零件3mm内挡板以外的非金属材料进行灼热丝测试，因为就算电弧导致起火，经过挡板隔离后是则不认为可以蔓延至外部零件的，故不需要对其外部零件进行测试。

lds08080808

CL.30..2..2

shixiafeng

同意二楼的说法

大侠风清扬

3mm为穿透距离
: j7 f! j7 Z3 h% {: O"如果还要考虑,那为什么中间加了挡板(防火材料),那就不用考虑做750灼丝了."
+ l( n; A# x. A% N3 i; q4 A 这个哪里来的？以标准为依据