DSH 405 Leakage current in secondary circuits

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DSH 405 - h7 A6 ~% r; {  k! k " {; A  z# |+ M6 I3 E+ n

Leakage current in secondary circuits

17g) " J" \* d8 J3 F, X

60601-1(ed.2);am1;am2

5 i9 I$ f. Q$ iStandard(s)- (year and edition):
( L, i& `7 U3 U2 Q1 r: v8 U. |( |# sIEC 60601-1:1988 Ed.2 Am1+Am2
Sub clause(s): 17 g)
: T) `. n: l" F; S4 vSheet n°: DSH-405
# J% A0 P5 d6 X& G) sSubject: Leakage current in secondary circuits
; J: S+ V( G6 U: ]5 v: FKey words: Leakage current, secondary circuit
0 N; ~+ V8 t, N& e) nConfirmed by CTL at its 39th meeting, in Cologne
% P8 P* A3 t$ N( q2 XQuestion:
& q( v' N& s6 ~2 z3 ]# S2 JIf secondary circuit impedances limit the leakage current, is further investigation of secondary
circuits required? (refer to sub-clause 52.5).
" a* ]/ l8 N* Q, n1 V! eDecision:
0 o; o, q9 h; b/ O( l3 e# Z2 i, I; mSecondary circuits providing protective means after short-circuiting of inadequate AIR
) t; G- S" ^4 S9 BCLEARANCE and CREEPAGE DISTANCE must be investigated. Failure of components in
these circuits shall be investigated as a SINGLE FAULT CONDITION. Failure of such
components shall be investigated as a SINGLE FAULT CONDITION.
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