DSH 729 Temperature limit of main enclosure over heat sink

小米

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

DSH 729   P! ^, E; C8 F  n( }

Temperature limit of main enclosure over heat sink

7.1.1, Table 3, note b 7 [! [" V3 E  j

60065(ed.7) ) W- t; e) s, a. o. P* g3 p

: G- Y+ i2 |" F$ a! y+ Z1 G" X+ RStandard(s)- (incl. year) No. Year
+ F6 \2 }7 L; {$ g5 pIEC 60065:2001 DSH
0729
2008
Category:
6 W" R0 F1 U; N* G$ E2 _TRON
/ J2 F! ~# }; q9 o4 kSub-clause(s):
7.1.1, Table 3, note b
$ ]' U* V# F& }Developed by: ETF2
2 c0 r0 R0 K& p' Z$ G# m/ o3 ?/ kSubject: Temperature limit
6 y' R. u, J- [1 C* O1 Gof main enclosure over heat
3 Z) [3 Y' H! B* @' U& ^sink
Key words:
: n+ E  t: n' e8 V3 m- Limits during normal
1 q$ D" U& k. {( f" @operation
. c6 r5 u2 l1 s8 H6 @- Not likely to be touched
* Z7 E- ]4 a1 J# D0 t3 T6 sduring intended use
, D! G- `$ n4 {! W6 |6 G' W7 lDecision approved at the
" D2 z" K3 q6 x46th 2009 CTL Plenary
Meeting
  Q8 V5 j( K; U0 h/ H( sQuestion:
Can the 65 ° K temperature rise limit be applied for the surface of the main enclosure covering an
' N! a) `1 _, u, q! u& ^9 t, Finternal heat sink in the same way as is applied for vacuum tubes following DSH-566?
Decision:
The 65 ° K rise limit may be applied to the enclosure covering an internal heatsink, if:
·  the symbol (IEC60417, 5041) is marked on or adjacent to the heated area of the surface of
the enclosure, and
·  the minimum distance over the surface of the product between this area and any control
7 ~- G+ d) h# p  J/ Sintended to be operated during use is 150 mm or greater, and
' |' v% F/ X. l( p/ k3 O2 H- Z·  the instruction manual gives information regarding it.
, S5 S9 \4 }, z% e) a( b
# K- n8 L0 P) f7 w8 @
% F) R% R! f+ @; O