DSH 738 Insulation properties of housing of subclass Y capacitors

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DSH 738 # O- b8 b, g2 B

Insulation properties of housing of subclass Y capacitors & U5 q5 V. T" z; W  T) n% ~/ `

1.5.7.2 (IEC 60950- 1:2001) 1.5.6 (IEC 60950-1:2006) # n+ H0 x9 X/ [. j% `! P

60950-1(ed.1) & 60950-1(ed.2) ! v9 x; d1 U8 ?+ h6 z; L

7 T1 }  T' c. R  v6 O) eStandard(s):
5 E$ m1 G3 B  }9 B' K% s/ g/ [IEC 60950-1:2001
$ Q6 F/ c& b" W0 M/ pIEC 60950-1:2005
/ y: Q; c: P! f- |, O( a0 }' _Sub clause(s):
1 W3 l  H! k2 e$ y+ N" {1.5.7.2 (IEC 60950-
, a7 @7 l+ d; X  C, c' i1:2001)
1.5.6 (IEC 60950-1:2006)
2 s, j. Y. R! N' M& FDeveloped by ETF 2
Question 68
Subject:
Insulation properties of housing
of subclass Y capacitors
Key words:
- subclass Y capacitor
- housing
1 S2 P2 x( }% }4 C- insulation
% ^) w+ n2 t- A) y$ W/ \Decision approved
, R# q' v  B) m; a4 z. K4 Z! uat the 46th CTL
Plenary Meeting
2009
Question:
/ J) C1 J  S0 y) kCapacitors complying with IEC 60384-14 are permitted to bridge certain levels of
# }* R( W" F" f$ d0 pinsulation. Does the housing of such capacitors provide this same level of
insulation?
8 @' y8 y; ~/ a% r. z/ M/ LExample: A subclass Y1 capacitor is permitted to bridge double or reinforced
; ]% P4 X5 Q; n8 i' i9 x9 S- ~insulation. Is it permitted that this capacitor housing serves as double or reinforced
insulation to other circuit parts, such as a transformer core?
Decision:
+ ^0 u: P" I* y# z7 vHousings 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
3 p6 Y  r, C# v# U; M1 }exception of the areas near to the leads.

& t# N( d2 h/ q( E
7 p3 b9 y/ z  s0 X4 D