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|  DSH 4371 {% T3 u/ F& k$ X) _- n
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| Verification of the rated residual making and breaking capacity ID m9 i7 T. j% F* z, T$ o+ Y
| 9.12.135 ?+ U T5 |, X6 s* b
| 61009-1(ed.2)
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+ R7 U8 P5 b1 M" MStandard:
8 k( e# @" g' e) D' @6 }; q; o5 T% tIEC 61009-1 (1996-12)
5 |* t4 S# {) X) V, ?Sub clause:1 u; J: V9 e" A* r
9.12.13& O. l, P- @* [% h4 E! N+ I" B8 u/ ]
Sheet No. 437* V$ G" j% `) n" s8 l
Subject
) a, R" _2 R# H4 @+ ?: q7 SVerification of the rated residual
8 W4 A& A! r# e/ l% Lmaking and breaking capacity IDm
U n" T: D: M5 g/ Y: @: GKey words: Confirmed at CTL) H: T, R0 l3 u* m5 X' g! N' W
39th Meeting
# b& i L6 K, l O3 w# k& K _Question:# E2 c* P7 g! |
9.12.13.1 refers to the test conditions prescribed in 9.12.1 and states that the impedance Z1 shall1 ?# @0 G- ]* `
not be used.
# i# m! P& V8 O9 v9.12.1 refers to the conditions in 9.12.1 to 9.12.12.
% p6 Z# r3 L+ N, I. q3 R* I9.12.2 and 9.12.7.4 require the test circuits according to figures 5 to 9 together with impedance8 `" \" g/ ^- X. e7 {6 M f7 X
Z2 to be used.1 a0 ~/ _0 O1 j( ^9 y8 M. h
According to these figures the following inconsistency appears:6 K; l* J7 T& U C
For a single pole switch (with two current paths) normally rated for 230 V, the rated residual- R" w7 `) Y7 T# H# `! i
making and breaking capacity has to be tested at 230 V.# A/ o' B/ P( |2 V8 [$ w
For a two pole switch normally rated for 400 V, the rated residual making and breaking- V6 L% a: k% {6 [% @& U/ s0 J
capacity has to be tested at 400 V.
) P, [* l6 O8 O9 K4 |: hFor a three pole switch normally rated for 400 V, the rated residual making and breaking P/ i7 }# l* R+ U% @6 M- m8 l% m
capacity has to be tested at 400 V.4 ?% d! B% B/ _% `
For a three pole switch with four current paths and for a four pole switch normally rated for
S2 [' D- h0 A8 R5 `5 U- k4 C400 V, the rated residual making and breaking capacity has to be tested at 230 V.
, ]! N N( [3 H1 m0 V) C$ nDue to the fact that the purpose of this test is not to cover the special fault conditions in IT-systems,) z' r& y6 r+ j
the test voltage for this verification of the rated residual making and breaking capacity should be) ^8 D/ \( R: t7 Y8 Z; u* l
230 V, independent of the number of poles, and the relevant figures should be corrected.
2 c' K* J9 Q" v4 TDecision taken at the SC23E WG2 meeting in Nice, October 2001:. B8 t' |4 ~$ {! u0 H6 s$ b) H( m
Extract from the minutes IEC SC23E_WG2_006:" F, B' E1 h6 S' P
SC23E_WG2_010 request from Austria to update 61008 clause 9.11.2.3- t% X3 K6 X$ ?' V4 P
The proposal made by Mr Bachl was considered justified and accepted. During the meeting0 [$ I7 _- |+ F' E5 k5 V, w
WG2 decided that laboratories and certification bodies should be informed about this# `4 Z9 f& p6 D3 e- l/ }
important decision.
- ^: A+ M* t( Y) p1 I& f1 MTherefore the following statement was drafted:
% I% o w( u; ?7 Y$ b1 v$ R8 \2
* G3 c$ d: x" E8 ^5 u! p- b. IDecision to be forwarded to CTL:7 ^* }" K+ x2 L7 J2 G1 s$ E$ {+ b6 `- L
IEC SC23E WG2 decided to correct the inconsistent test requirement in IEC 61008-1 (1996-12), subclause
3 ~8 P% z; N! z9.11.2.3 and in IEC 61009-1 (1996-12), subclause 9.12.13 - Verification of the rated residual* D4 C* U2 T, [) K3 v: \4 e2 D
making and breaking capacity IDm.) A* v/ N1 g8 Z4 @/ L% B- r& _
The test voltage for this verification of the rated residual making and breaking capacity should be the+ A7 s" [9 J4 a/ P# {2 h
line to neutral voltage, independent of the number of poles of the RCCB or RCBO. This correction will3 K. |, N. z2 F+ `2 A' F
be included in the next amendment or revision of IEC 61008-1 and IEC 61009-1.
, g0 q) C7 T& k2 R, \8 u9 e' w4 A4 MThe revised test circuit (fig. 7) proposed for the standard is attached.# C# z! i) p, f
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