DSH 333 Separation of Internal Circuits

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DSH 333

Separation of Internal Circuits

6.6.1 + K' f2 i2 B4 i  z

61010-1(ed.1);am1;am2 & H) t4 ]4 Q8 G

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Standard:
IEC 61010-1:1990 +A1:1992 + A2
:1995
2 S, [/ W  {$ M* y1 H8 oSub clause:
6.6.1
4 j. U1 E. f/ n2 _# `Sheet n. 333
' O' n9 l. x5 }5 U. l: _Page 1(1)
Subject:
5 l& [% x4 j( @( cSeparation of Internal circuits
. r% ?2 ?) w. A9 Q* ^Key words:
- Isolation system
- Materials Declaration
! z/ v* p) t4 z2 YDecision n. 23 taken at
: |% }5 G% n8 c4 \: Y37th meeting/2000
Question:
& Q5 G9 A0 Y5 ?8 A5 E4 A8 tWhat should be the criteria for accepting a manufacturer’s declaration for
isolation systems and materials?
This question is from CTL.
, O. W* _( a+ i+ k/ ~0 sDecision:
7 d5 |" A5 f2 n4 _, Y) q7 JIt was agreed that although manufacturer 's declaration may well be taken into consideration,
1 Q. r, t# J9 K' fhowever testing must be performed to ensure that requirements of IEC61010-1 is met.
* {; @2 i4 t# @' o) BExplanatory Notes:
: D3 F# [* B) m7 o0 }2 [+ ?In IEC61010-1, there is no requirement to simulate the ageing process of critical components
such as the mains / isolating transformers.
It should be noted that after each single fault condition test, where necessary, the required
' ]: Q; o2 W) c% R: k. t' ^high voltage test must also be applied to ensure that at least basic insulation exists.
3 X; V0 Q2 y5 g8 K7 }7 yNote that under compliance criteria there is no reference to 'Declaration by manufacturer'.
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