DSH 333 Separation of Internal Circuits

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DSH 333   O# g6 }: c6 H$ D

Separation of Internal Circuits % t: T. O6 X6 z( P3 Y' d6 t

6.6.1

61010-1(ed.1);am1;am2

Standard:
# }: o  L- T; e% B* u3 RIEC 61010-1:1990 +A1:1992 + A2
:1995
1 E* K7 s$ m! S0 G, R  `Sub clause:
, A+ _7 [0 _, i" s6.6.1
Sheet n. 333
5 X7 B* U5 [8 z2 x8 DPage 1(1)
Subject:
, C+ T$ s! h/ WSeparation of Internal circuits
' e. v' `. M0 y7 o: pKey words:
- Isolation system
- Materials Declaration
: q/ l2 L+ X' K( l+ gDecision n. 23 taken at
4 Q' O6 `/ r1 [- n37th meeting/2000
' o& {, s1 @  d. Z# EQuestion:
9 G$ v3 K0 E4 }0 ]7 J7 GWhat should be the criteria for accepting a manufacturer’s declaration for
isolation systems and materials?
9 y; l( i, k& u  R8 M  W, j7 V$ KThis question is from CTL.
3 W  Z/ G: ]" a* m' HDecision:
It was agreed that although manufacturer 's declaration may well be taken into consideration,
however testing must be performed to ensure that requirements of IEC61010-1 is met.
+ q. T& r9 A3 _8 A! V4 g/ wExplanatory Notes:
3 T" H) B+ D/ _/ m2 q+ LIn IEC61010-1, there is no requirement to simulate the ageing process of critical components
; W, ~/ l3 O2 k$ n" Ksuch as the mains / isolating transformers.
. ?" K8 q$ }  F/ u- ?It should be noted that after each single fault condition test, where necessary, the required
high voltage test must also be applied to ensure that at least basic insulation exists.
Note that under compliance criteria there is no reference to 'Declaration by manufacturer'.


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