DSH 405 Leakage current in secondary circuits

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DSH 405 ! Q8 R: G4 E1 |* r: {

Leakage current in secondary circuits ! a$ [/ I, O) i( z, [

17g) 2 y) U' G, U6 @# P

60601-1(ed.2);am1;am2 . @# K. Z7 s4 z

Standard(s)- (year and edition):
* b# D# |" G( M" p2 o; N! iIEC 60601-1:1988 Ed.2 Am1+Am2
5 p" i  l. F4 ~$ [; ~Sub clause(s): 17 g)
% D# {2 f. ?5 U" \: mSheet n°: DSH-405
! |: ?. R1 }; v. |3 s! c  GSubject: Leakage current in secondary circuits
" z. g# n: _* N. U0 JKey words: Leakage current, secondary circuit
Confirmed by CTL at its 39th meeting, in Cologne
Question:
9 Y/ D! q, {/ Z! U' rIf secondary circuit impedances limit the leakage current, is further investigation of secondary
) S1 W5 v$ h- G" h9 X/ \, H5 mcircuits required? (refer to sub-clause 52.5).
Decision:
: w* z. z# k& l- Q1 `Secondary circuits providing protective means after short-circuiting of inadequate AIR
CLEARANCE 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.