DSH 405 Leakage current in secondary circuits

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DSH 405 9 F3 G4 Y5 w4 j 2 i+ u/ E3 `8 W5 K% p; B3 G# C

Leakage current in secondary circuits : @+ n7 ^  u/ P/ S5 m

17g)

60601-1(ed.2);am1;am2 " Y, G& Y& ]7 N% E% ~

Standard(s)- (year and edition):
$ e  c" v5 w9 _3 pIEC 60601-1:1988 Ed.2 Am1+Am2
Sub clause(s): 17 g)
Sheet n°: DSH-405
Subject: Leakage current in secondary circuits
. I) |; e- b. C- u8 ]. n9 K! `  KKey words: Leakage current, secondary circuit
Confirmed by CTL at its 39th meeting, in Cologne
# G6 ~! `# k$ }' C% I0 nQuestion:
If secondary circuit impedances limit the leakage current, is further investigation of secondary
' s; W7 V- f$ ]$ kcircuits required? (refer to sub-clause 52.5).
Decision:
Secondary circuits providing protective means after short-circuiting of inadequate AIR
% f" ?" t  m" P. {4 Q! O. }9 KCLEARANCE and CREEPAGE DISTANCE must be investigated. Failure of components in
these circuits shall be investigated as a SINGLE FAULT CONDITION. Failure of such
( j# s) J* g7 t" r% d8 U9 ^components shall be investigated as a SINGLE FAULT CONDITION.
! Z) r) h2 j. f8 F