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
IEC 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
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.
3 V# Q9 j+ [) AHowever, 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
. S5 P, s" `8 y3 e' S2 `! r: M( Q# l– 750 °C, for connections which carry a current exceeding 0,5 A during normal operation,
( Z. A# r  f5 E1 W5 f– 650 °C, for other connections.
0 V6 l9 \0 g  j3 ?$ m& d' TIf 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
7 M( J( o' C' ]! Y! Cpreferred 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.
# c6 H& Q$ a$ r0 N$ m" UWhere a non-metallic material is within 3 mm of a current carrying connection, but is shielded
  H) g, p4 S' C# P$ sfrom the connection by a different material, the glow-wire test of IEC 60695-2-11 is carried out
9 C9 U/ N7 e3 G: h& Lat the relevant temperature with the tip of the glow-wire applied to the interposed shielding
4 N/ k/ ^. t( a+ u& d* f# d7 i: Z- kmaterial 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
– 750 °C, for connections that carry a current exceeding 0,5 A during normal operation,
– 650 °C, for other connections.
$ e& B+ T* t9 O# n/ A: G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
"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."
, a5 h; |$ J. E: X4 k 这个哪里来的？以标准为依据