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标题: DSH 738 Insulation properties of housing of subclass Y capacitors [打印本页]

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作者: 小米    时间: 2012-11-6 13:42
标题: DSH 738 Insulation properties of housing of subclass Y capacitors

DSH 738 ; M+ R6 }' S9 D' g4 G; T5 b

Insulation properties of housing of subclass Y capacitors ( ^4 V: s- a2 c) X

1.5.7.2 (IEC 60950- 1:2001) 1.5.6 (IEC 60950-1:2006) , d; a7 `) a# q5 l, m

60950-1(ed.1) & 60950-1(ed.2) , N$ T$ v% V6 s* v3 K& {, J

2 {/ Q1 [, n6 w9 M/ x7 ^Standard(s):
IEC 60950-1:2001
IEC 60950-1:2005
Sub clause(s):
1.5.7.2 (IEC 60950-
; M  a  ~3 Y* ]/ m- O" V1:2001)
: D8 Y+ ~4 Y8 V) }+ V5 w6 A1.5.6 (IEC 60950-1:2006)
Developed by ETF 2
Question 68
0 x- c! e$ s+ @Subject:
Insulation properties of housing
of subclass Y capacitors
Key words:
+ |  n3 w- q+ ^% _- subclass Y capacitor
- housing
+ T- b$ p; d1 \* l3 x- insulation
2 n2 M  I+ U* k4 hDecision approved
' ?6 B" o  r5 h- z( Kat the 46th CTL
Plenary Meeting
- y, @# w9 t1 M2 R/ f2009
Question:
) m6 A9 }( k5 H; C7 ~# z, k/ gCapacitors complying with IEC 60384-14 are permitted to bridge certain levels of
insulation. Does the housing of such capacitors provide this same level of
0 c' Z  e" X/ z3 }insulation?
( s5 i7 v( M, ?0 O, H' ZExample: A subclass Y1 capacitor is permitted to bridge double or reinforced
insulation. Is it permitted that this capacitor housing serves as double or reinforced
9 H$ z' n2 ^- N7 v% u9 R6 _insulation to other circuit parts, such as a transformer core?
Decision:
Housings of IEC 60384-14 subclass Y capacitors are considered to provide
insulation levels as specified in IEC 60950-1 (e.g. Table 1D for 2nd ed.) with the
' l2 w5 C/ Z. R- y3 P: C# [" m9 Mexception of the areas near to the leads.

2 |3 o1 W) b& ^" e! v/ q; i6 H[attach]77137[/attach]
) c/ P. ~7 c0 F+ l/ ?

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