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|  DSH 738% E% \% ^4 k; l: e7 B/ _/ r" L
9 m+ W( V0 M& g. @& s3 [7 N+ Q2 I | Insulation properties of housing of subclass Y capacitors6 H6 ^ u- a z5 n
| 1.5.7.2 (IEC 60950- 1:2001) 1.5.6 (IEC 60950-1:2006), L# \& _7 U" k8 k# @; q v: Q
| 60950-1(ed.1) & 60950-1(ed.2)
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- f; v5 ~3 k8 N8 d9 E+ RStandard(s):
; E4 t0 Y* d8 S- B5 b8 x% GIEC 60950-1:2001/ n0 |# I" t0 u
IEC 60950-1:2005
. q' X$ F9 P- t- a5 zSub clause(s):0 ~1 y C* {% c9 O o7 `2 H
1.5.7.2 (IEC 60950-; b; _6 q8 j. e0 S F5 ^
1:2001)
I; N# s6 D* p1.5.6 (IEC 60950-1:2006)( v; z& y# t* P6 U3 {0 t3 M8 b
Developed by ETF 2
~( ?: K1 D7 S- BQuestion 68
* ?/ F: T& t3 z, D1 Z& bSubject:
p' o; g& ^ z+ C. g% BInsulation properties of housing- h u8 `# m, n4 J; C' S" L8 o
of subclass Y capacitors8 L# r+ c0 O x8 w1 N7 N! P: l! c, _
Key words:2 ~: W* b6 Z( \/ o% M
- subclass Y capacitor5 `2 s) K0 q' l; O
- housing+ n$ U+ ~# b+ V: v
- insulation% h1 q8 s7 K5 f2 K; I
Decision approved
1 w1 J7 {2 w" b% `9 n1 \at the 46th CTL
* a' K$ u% {7 \+ l! mPlenary Meeting" o% F d. W1 h
2009" S$ T% i) ^' J8 l9 R! B2 K
Question:
+ S8 U1 {3 L2 J) P' q1 X7 eCapacitors complying with IEC 60384-14 are permitted to bridge certain levels of
* s- l4 C8 `6 \+ k& M& ~insulation. Does the housing of such capacitors provide this same level of+ A/ L' }" c7 \) q" w. z
insulation?( e8 |4 w' v% E( P
Example: A subclass Y1 capacitor is permitted to bridge double or reinforced, `0 ^) p2 Z( W. n/ B
insulation. Is it permitted that this capacitor housing serves as double or reinforced
* j* k' a4 ?6 \8 N+ }1 Sinsulation to other circuit parts, such as a transformer core?* B7 K2 O2 D$ j4 f" w; r1 z4 o
Decision:4 Z, b4 k, l: L8 Q
Housings of IEC 60384-14 subclass Y capacitors are considered to provide
$ [# d7 ?% y1 o) O( _6 J9 Uinsulation levels as specified in IEC 60950-1 (e.g. Table 1D for 2nd ed.) with the. Q% T' r8 b1 K3 q; d4 a/ l8 A
exception of the areas near to the leads.; @4 U2 q: N5 c
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发表于 2012-11-6 13:42
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