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标题: DSH 437 Verification of the rated residual making and breaking capacity ID m [打印本页]
作者: 小米    时间: 2012-11-7 19:31
标题: DSH 437 Verification of the rated residual making and breaking capacity ID m
DSH 437
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Verification of the rated residual making and breaking capacity ID m1 P/ N- n) `# P, v) i% ]3 L0 I
9.12.13
* L& @& X! D- d; M  h4 G5 _% S		61009-1(ed.2)( O+ f, {# P/ n( m5 {

5 [' g% g5 g3 ?4 k$ }Standard:
5 Y: R. `% o( e# i2 [IEC 61009-1 (1996-12)/ j4 Y- L. ^' M, o" W$ }- ~
Sub clause:% o' K$ w' n0 E' A4 \. o2 b
9.12.13; E) Y$ ?, ]8 X: K) \
Sheet No. 437/ ?/ ]5 S, O) q# z" H8 m
Subject
9 Z0 O# k8 Q/ ~Verification of the rated residual
" c# p! h& @9 i# e: {making and breaking capacity IDm. g& A5 b0 B# N
Key words: Confirmed at CTL
. J0 s- a# L: E- V3 F' l, [7 Z1 G39th Meeting
$ G& B3 A  X* sQuestion:% m( a3 t9 ?* k/ u. a+ G' D$ j& ^" Y
9.12.13.1 refers to the test conditions prescribed in 9.12.1 and states that the impedance Z1 shall
& r( i5 r9 }! l6 `not be used.* I) ~; A/ H: t2 v
9.12.1 refers to the conditions in 9.12.1 to 9.12.12.$ O" h7 Q: g3 L, u
9.12.2 and 9.12.7.4 require the test circuits according to figures 5 to 9 together with impedance! E8 o( w. J- G$ w5 L
Z2 to be used.% O, g$ i- f5 y( a$ P/ ^1 E) L
According to these figures the following inconsistency appears:9 W: ?; i  J7 U& F8 I0 F
For a single pole switch (with two current paths) normally rated for 230 V, the rated residual& t1 G5 v( A9 [) [
making and breaking capacity has to be tested at 230 V.
  u) J5 s% f/ T/ SFor a two pole switch normally rated for 400 V, the rated residual making and breaking
5 I# v( N& V. F9 z6 D4 P& tcapacity has to be tested at 400 V.% a2 e% ~+ N  F! E8 ^9 T- O
For a three pole switch normally rated for 400 V, the rated residual making and breaking2 {, [% u9 t- n# Y1 u# Z; H
capacity has to be tested at 400 V.
' s2 a2 f' U. WFor a three pole switch with four current paths and for a four pole switch normally rated for
5 V- q* {$ {4 s( ~  ^400 V, the rated residual making and breaking capacity has to be tested at 230 V.- I3 W4 K6 h( |' |: @/ D9 L# \7 t  J
Due to the fact that the purpose of this test is not to cover the special fault conditions in IT-systems,
8 K+ Q! K5 q: a3 K/ J! S$ Q) Gthe test voltage for this verification of the rated residual making and breaking capacity should be
" j4 [# f7 W! j$ ]230 V, independent of the number of poles, and the relevant figures should be corrected.1 h' J' z, v1 U$ \$ r
Decision taken at the SC23E WG2 meeting in Nice, October 2001:
4 M% r' G# Z0 s- p+ I" ?Extract from the minutes IEC SC23E_WG2_006:& ]6 `6 G3 O) A5 ]- w
SC23E_WG2_010 request from Austria to update 61008 clause 9.11.2.36 }, {; p, K" x# `6 B0 z
The proposal made by Mr Bachl was considered justified and accepted. During the meeting
3 k  y9 {0 _6 l' H8 F; Q0 DWG2 decided that laboratories and certification bodies should be informed about this& {; t* X5 k  Y3 }* r  D% V) `
important decision.
; r4 a0 q$ ~% ~! |: ^. y7 @4 D4 W1 hTherefore the following statement was drafted:
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Decision to be forwarded to CTL:* E. h9 @( k7 ~7 j
IEC SC23E WG2 decided to correct the inconsistent test requirement in IEC 61008-1 (1996-12), subclause4 q' e# W0 ^$ v; G+ H! x
9.11.2.3 and in IEC 61009-1 (1996-12), subclause 9.12.13 - Verification of the rated residual8 F' L& I8 V7 }) {3 s* n: L: z
making and breaking capacity IDm.
: o2 _* y' s  d  X1 a5 CThe test voltage for this verification of the rated residual making and breaking capacity should be the: I, U( z% N5 ?; Y# v  C7 H& b
line to neutral voltage, independent of the number of poles of the RCCB or RCBO. This correction will1 @/ t# h6 h  a+ V, w
be included in the next amendment or revision of IEC 61008-1 and IEC 61009-1.
/ N3 {1 s4 l2 i* oThe revised test circuit (fig. 7) proposed for the standard is attached.
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7 C0 V5 N# {7 i' o7 g- y[attach]77218[/attach]7 ^+ [4 {6 |! K% K7 Y




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