DSH 405 Leakage current in secondary circuits

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广东安规检测
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DSH 405

Leakage current in secondary circuits

17g)

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

Standard(s)- (year and edition):
IEC 60601-1:1988 Ed.2 Am1+Am2
Sub clause(s): 17 g)
Sheet n°: DSH-405
. Z% b# e7 J% @$ ?8 ASubject: Leakage current in secondary circuits
Key words: Leakage current, secondary circuit
Confirmed by CTL at its 39th meeting, in Cologne
Question:
If secondary circuit impedances limit the leakage current, is further investigation of secondary
- }' B- u2 ?" J. Y1 Z+ [) Mcircuits required? (refer to sub-clause 52.5).
: `- K: q& M; R7 b2 Z% \1 QDecision:
Secondary circuits providing protective means after short-circuiting of inadequate AIR
CLEARANCE and CREEPAGE DISTANCE must be investigated. Failure of components in
, M* h* T# T3 }these circuits shall be investigated as a SINGLE FAULT CONDITION. Failure of such
! L! K  Q0 @, `1 E( ^; o# Q( z: `components shall be investigated as a SINGLE FAULT CONDITION.
4 n7 @0 A' Z8 E6 A& J

* G" }9 |+ k9 Y4 H8 @' R7 \. z" }