|
|

楼主 |
发表于 2008-6-2 19:14
|
显示全部楼层
Sorry, ITE说是CR不够. 如下是其原文:( X5 r$ H t% A" f7 R/ |5 |, P
According to sub-clause 8.9, a single layer of PTFE insulation having
# Q) c, F; k5 L0.24mm ]: G) v1 H# ~% r' M. {
(min.) is considered to fulfill the basic insulation requirement.' r& ?# G1 v2 `, ?2 I$ b
* n: h' Q7 n) P$ |
Now, recap to your sample, the tubing is already considered fulfilled$ W. c3 J4 e+ ^
with9 H2 E6 y% k+ r8 s1 o) N+ r3 T
the basic insulation requirement. In order to provide sufficient
+ L# ?; Y/ ~8 D" a# X) Hinsulation/ E8 p2 z8 ^; o
(double insulation) between the primary winding and secondary winding,. Z( Y# Y& s$ I' E3 b' W& E7 t: \
additional insulation namely supplementary insulation (requirement same9 i6 b$ W- P) ?( _" y
as
* D! K2 `! h+ X! e0 T4 X5 [3 Ibasic insulation) should be provided between the primary winding and that
- P, `' j: e- @; dtubing's surface. It means that the creepage distance between the primary0 @: A& h" e+ p/ v" r" v9 ^
winding and that tubing's surface should be kept at least of 2.5mm.' A8 |' K! U% P5 ]
However,
6 A9 s; V$ U3 konly 2.2mm measured at your sample. |
|