|
|
|  DSH 406: R- A. j0 |; H0 u. U) F; b
% F! p7 t- Q% t$ z. I0 J" d | The adequacy of the knob/shaft mechanical link0 L v. b6 S* c! `, z
| 56.10 b)7 W% _; a( z. S' A+ ?9 w- U( @
| 60601-1(ed.2);am1;am2
. ]/ r' u3 n" S @/ f& R h |
g. G7 }( |6 l) k% \
Standard(s)- (year and edition):
/ M1 W4 T2 F: E3 k$ lIEC 60601-1:1988 Ed.2 Am1+Am2
' F) q. Z4 [# K' c4 s! t: fSub clause(s): 56.10 b): X- ?* r1 i' ^. m d
Sheet n°: DSH-406
/ }5 z0 m! s$ D8 f- V. X; s, M( zSubject: The adequacy of the knob/shaft mechanical link1 J. a0 C& q5 ^, B
Key words: Knob, torque
3 q6 c1 f8 J6 B, G+ b* b, y5 W. UConfirmed by CTL at its 39th meeting, in Cologne
' j2 q- W7 C4 C' W" ^* pQuestion:
3 m: r- G7 Q( |2 V( S9 Pa) The criteria is that the knob shall not rotate with respect to the shaft. This does not cover the
. q' C( `1 {/ r2 d( ~2 a) n8 R6 Xpossibility of internal damage to the controlling device e.g. potentiometer.
1 ?3 ^0 T. \+ Q8 N5 @1 Pb) The torque test values are too high. Maximum torque on a 10mm diameter knob was found8 L1 |: ]3 l9 P+ n6 r4 I
to be <0.5Nm.
: i0 i( g4 }' i9 MDecision:
' H: X5 r- _+ p& j* XThe torque test values in Table XIII are not excessive. This table could be re-examined in the3 {, T7 y2 L9 z. Z
3rd edition of IEC 60601-1.
& Z" r2 C1 E5 ` e4 k5 s% {/ Q. j. V. U! Q
- ~/ b0 k2 [4 D1 A( p, s2 Z
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-11-5 11:40
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡