DSH 405 Leakage current in secondary circuits

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DSH 405

Leakage current in secondary circuits 0 b0 T5 k9 x  n8 A' y1 u; J2 l

17g) 2 |, ~& \9 s, s

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

Standard(s)- (year and edition):
IEC 60601-1:1988 Ed.2 Am1+Am2
Sub clause(s): 17 g)
( _* E/ t7 E" e9 i8 `$ |Sheet n°: DSH-405
3 ~  s: E7 V7 `Subject: Leakage current in secondary circuits
Key words: Leakage current, secondary circuit
Confirmed by CTL at its 39th meeting, in Cologne
Question:
2 a6 h- v' d" F9 aIf secondary circuit impedances limit the leakage current, is further investigation of secondary
6 {! _7 i! o# Ocircuits required? (refer to sub-clause 52.5).
8 ~! U1 x3 _  Z8 ?6 _0 a- iDecision:
Secondary circuits providing protective means after short-circuiting of inadequate AIR
) l1 b  Q% W- v5 N; t# nCLEARANCE and CREEPAGE DISTANCE must be investigated. Failure of components in
  |" W) d, O8 I) d7 ]( x5 {& ]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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