DSH 588 Verification of main contact position, position of the handle

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 588 , `/ C, \) ?! y) ^

Verification of main contact position, position of the handle

8.2.5.3.2 of IEC60947-1 and 8.3.3.9 of IEC60947-2 2 ~7 B1 L+ v! y$ J; T6 \$ q' b7 V

60947-1(ed.1);am1 & 60947-1(ed.2) & 60947-1(ed.2);am1;am2 & 60947-1(ed.3) & 60947-1(ed.3);am1;am2 & 60947-1(ed.3);am2 & 60947-1(ed.4) & 60947-1(ed.5) & 60947-1(ed.5);am1 & 60947-2(ed.1);am1 & 60947-2(ed.2) & 60947-2(ed.2);am1;am2 & 60947-2(ed.3)

4 ^  L5 P& _- E0 M" \Standard(s): IEC60947-1, IEC60947-
2, IEC60947-3
Sub clause(s):
1 |- V# K5 F# Z8.2.5.3.2 of IEC60947-1 and
% N. I% D1 f  D+ E" b! a, D8.3.3.9 of IEC60947-2
Sheet No.
+ V4 {) ~0 K6 p+ VDSH 588
/ X* P# A& H  d# P" J# rSubject:
( K' G: w! V- G7 NVerification of main contact
, `$ T% u9 `( _- U/ b' n+ ~. Tposition, position of the handle
Key words:
- suitable for isolation
" e9 L3 `3 z. f- indication of contact
position
$ s. c1 u. R6 K1 LDecision approved
/ p; h0 R+ i* Bduring the CTL Plenary
Meeting 2006
1 A0 `$ F- }. G5 QQuestion:
( O/ o8 U' _# i; cVerification of the main contact position is conducted only on products suitable for isolation. This is an
! a9 }! P# C& `" |" S% Z* J/ Qadditional requirement to be verified. With respect to this test, the following two questions gave rise to
5 l: h5 m# ^! f# ^. e, ~% [! [discussions
Q1: When after the 3F test, the indicator comes to rest in a position between the trip and open position (which
' ~5 ]# A" X8 q( Fis not the tripped or open position as indicated on the product), is this a pass when tested according 8.2.5.3 of
, a' X. q7 z" g5 P  ]& z' gIEC60947-1?
Q2: If the answer of Q1 is yes, is this in conflict with the general constructional requirements of 7.1.5 or how
should section 7.1.6.1 (additional constructional requirements) be interpreted?
- Y& T- H6 b/ O+ T2 Q1 S- n" ]! PDecision:
There are two possibilities, depending on the features of the MCCB:
1) The indicator is the actuator, and it is the only position indicator, or
2) There is an actuator that may show the operating position, but in addition there is a
separate position indicator.
For construction per item 1, this result is not acceptable
% k/ ?: A1 P( \7 g. \' R3 SFor construction per item 2, the result described is acceptable if the separate position
indicator unambiguously shows the closed position, irrespective of the position of the
. C  p, ~2 q; ~# S- cactuator.
Refer to IEC 60947-1, Clause 7.1.6.1
' [, {) y4 O% r. E
$ E* n1 F$ \' g  b) B- p