DSH 295 Object

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耐划痕试验机

各种灯头量规现货

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灯具防风罩

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UL498插头插座量规

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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 295

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1.2

61010-1(ed.1);am1;am2 : }5 O2 ]4 S9 ?3 ], S6 G1 Q7 H$ Q

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Standard:
IEC 61010-1:1990
+A1:1992+A2:1995
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1 P! B7 N6 U) w% ~6 v4 Y& P4 q% NSubject:
% z& {. Y: o5 O# d1 G$ FObject
! D; w/ N5 o! b$ Q. Z; wKey words:
! T0 g* J' d' n& ]. n' p- Scope
: U0 y4 D' ~) ~: t% c% s' Y2 Y1 |# H- Software Safety
0 {( ^# V, q8 h3 K" f$ b# TDecision taken by
! \4 X) e4 R. |! w( TETF3 and confirmed
by CTL at its 38th
meeting, in Toronto
Question:
  l& p$ }! `" VIf safety is dependent on Software, what criteria do laboratories employ to ensure
6 O4 d, `9 s0 h" ~$ s5 l/ M2 w! m3 Qcompliance?
Decision:
3 A$ F- E+ n/ d( ISoftware safety is not specifically addressed in IEC 61010-1 at present and therefore, there
( i, W, \" G% ]1 Xare no specific guidelines for this work. A draft collateral standard is in preparation and also
; }' a1 D- h7 [7 kIEC 61508 deals with this topic.
7 \! |- i4 y" lGenerally, it is advised that devices should not be dependent on software alone for their
) A+ ^, f4 A8 A/ _/ r  M4 H( i7 Lsafety. There should be a separate independent means provided which acts to prevent a
) j0 |2 ?0 B6 Vdangerous condition arising.
Explanation:
* j, P4 \3 W$ r2 K! m  X  MExperience shows that the analysis of software systems to ensure their safe operation is very
- x" I9 j( R' |3 F& idifficult and in practice, can only provide a measure of confidence. Additionally, the
3 j% \# x% n$ Lmethods of performing the examination are not widely agreed upon and therefore, subject to
doubt. In these circumstances, it is preferred to adopt safety limit methods known from
$ k* N. }* i3 E+ G: }" u% bexperience to be effective.

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