关键元件中外壳可以认为是基本绝缘的元件

tomwellyang

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

学习了，学习了，谢谢1

jianshen

只有Y,X电容是,其余不是

lockintime

[s:83学习了

EVERGREEN21

http://www.iecee.org/ctl/osm_she ... s.html#en6095012001 里面有说明

aillafeng

元器件是否作为绝缘那样看元件

oscar_ye

安规007 发表于 2011-5-3 14:58
Y电容表面是基本绝缘？ 那是不是意味着再包层热缩套管就可以当附加绝缘？ 人手就可以碰了？？我对此持怀疑态 ...

附加绝缘穿透有要求的，家电1mm。另外，电容外壳与带电体打过耐压，我认为是达到基本绝缘要求。如果想用热缩套管，那么热缩套管1层先需要打耐压，通过后做附加绝缘需要2层以上，也需要做试验。

xuxuxu

OSM/EE DECISION SHEET


8 D' }" u' l9 |# \  M6 FStandard:  
' c1 A  q2 T+ m1 j0 p0 t' vEN 60065:1998
; V2 n4 O; u, V6 BEN 60065:2002
! i, Y) S% g7 u1 a3 q: M        Sub clause:
8.6        Sheet no.  
5 b! U) {6 D+ f, x* X2 v0 y97/1
8 A/ a. b4 m, [7 R
3 ~' Z/ g; o) F% w4 G, qPage 1 of 1      
+ Z# j" o% l8 d7 _- D4 PSubject:
The enclosure of Y1 capacitor

        Key words:
2 ~6 d8 H+ f# w' N  q( F6 IReinforced insulation area        Meeting:
OSM/EE – 1997
Item No. 3


Question: -
Can the enclosure of a Y1 capacitor be regarded as reinforced insulation?

9 N5 T* I5 m, Q! o1 P5 U2 xDecision:
The enclosure of a Y1 capacitor is considered to comply with the requirements for reinforced insulation with the exception of the area near to the leads where the insulation becomes thinner.

        Only the white area is to
# l& q5 N6 e3 w& p        be considered as
9 G' X5 b! {0 q7 W! {( i' z        reinforced insulation
                                   
6 [* s  F; C) W" a. O/ ]
8 L) M+ `' h; r: X6 u& V
1 _5 r8 C1 O% d# _9 t# g


, i9 o9 l1 j: ^4 g' z+ D" ^2 ~
, `  T* U$ s* W( \% x: A
3 U/ k* {4 h/ X, @7 Z( z2 [3 ~0 M
$ _0 U5 G7 z; e4 [+ m7 S/ P+ p3 L

% X& X% p( P: L6 f) \% E1 R
Explanatory notes:
-

; u/ J! |, a) J$ @

xuxuxu

VIENNA – OSM/EE MEETING FOR ELECTRONIC EQUIPMENT  05 – 06 MAY 2010
7 M- a4 J5 D- H1 D6 A
. Q8 V: h! H4 ^+ |0 M# W-ITEM FORM-
! ^' ]+ a5 G: Q: sBSI – United Kingdom/N° 1/2010
' J7 V* M0 F3 [
7 p; b$ N( c2 F( V! u2 Z4 HStandard:
EN 60950-1:2006+A11+A1
and EN 60065:2002+A1
        Sub clause:
2.10.5.6 (EN 60950-1)
+ I) j8 r) O, s8.8 (EN 60065)
/ p% X* M; B5 H9 B2 m        Sheet No.:
% u) R. J1 Z; w1 g0 V5 l8 }Page 1 of 1
$ F3 i7 b+ g3 e3 Z. |/ m" C' \Decision 10/1

) c: K/ ^' R' \Subject:
9 ?' d/ l# ^' c6 P: J) ?Insulation on the body of electrolytic capacitors
' T2 [) k) I/ o. U9 q        Key words:
8 ^% b- w- O! K$ I: VInsulation
Thin sheet material        Meeting:
( {0 \. V) C7 F; n1 ~( ROSM 2001,
Agenda item n° 9.6
% b/ A3 [2 W1 O" NOSM 2010-05-05,
Agenda item n° 6.1
* w1 h2 C5 }/ V* `: J9 z* H8 @7 E
$ e: n: {) t: cQuestion 1) Minimum distance through insulation
6 X. p1 l  Z1 }6 ICan the insulation of an electrolytic capacitor be regarded as basic insulation?
' v7 W1 y* r# k(see attached photo) ?

Along the side of the component the plastic insulation will withstand the electric strength test (1500V ac). However on the top and bottom of the capacitor the plastic is stretched / bended around the edge, and the insulation can therefore be mechanically stressed. The question is, can this be accepted as long as the insulation withstand the electric strength test, without any further considerations?
) B1 C' V" N  L

--------------
5 d" d  _. U+ a" vQuestion 2) A common failure mode of electrolytic capacitors causes a pressure build up within the component, which results in the capacitor expanding in size, to the point where the outer marking sleeve/insulation may split – exposing the capacitor can (normally connected to the negative capacitor terminal).
Is it permissible to consider that the outer marking sleeve/insulation of electrolytic capacitors, as meeting the requirements of thin sheet material (EN 60950-1:2006 Sub-clause 2.10.5.6 and EN 60065:2002 Clause 8.8), without taking into account this possible failure mode?
  t) ]( ~8 ^! h3 n- b8 c1 u$ ?% H
1 ]" j4 r- I- L$ M& wOSM EE conclusion: 1 decision 0 only in the minutes
3 y- k: z6 O0 N" \( h
& I! ~6 D7 \' ]- M6 }' X# T( B& i* EDecision 10/1:
' ?" S7 e& G3 {, p% X( RThe conclusions from OSM 2001, agenda item 9.6 was agreed to be applied and converted to Decision 10/1, item 1:
3 A+ g3 h  ]) E3 x8 g% k' [6 COn the side the insulation can be regarded to comply with the requirements for basic insulation, but on the bottom or top side all manufacturing tolerances have to be taken into account. Information of the manufacturer (especially variation due to ageing) is needed.
+ i) h& |7 a3 W0 g( V
Decision 10/1, item 2:
Requirements for failure mode are to be taken into account.
EN 60950-1 Clause 5.3.9; Compliance criteria for abnormal operating and fault conditions.
) g. v5 V8 {0 b3 w" k, j60065 Clause 11; Fault conditions.

$ Q! T) }. P; KIs to be send to MT1 and MT2 (October meetings 2010) for confirmation.
Explanatory notes:
If it is a critical component it must be listed in the critical component list.