DSH 295 Object

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广东安规检测
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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

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DSH 295

Object

1.2

61010-1(ed.1);am1;am2 5 K% e1 Q% X4 U: ]* ^' A

Standard:
% |$ P; r/ E2 v) C; pIEC 61010-1:1990
+A1:1992+A2:1995
Sub clause:
1.2
Sheet n. 295
Page 1(1)
Subject:
1 d8 L8 q, X& [, N6 _4 k, U3 ~Object
! c/ w2 J" m- _* s) l% CKey words:
- Scope
% f9 r- H% F% u& g# U1 S- Software Safety
+ s* a2 I" z2 K/ z4 vDecision taken by
ETF3 and confirmed
9 E" E7 h4 L1 A1 B7 j0 o" yby CTL at its 38th
meeting, in Toronto
Question:
' X: Q2 Q  ?! j) lIf safety is dependent on Software, what criteria do laboratories employ to ensure
compliance?
Decision:
Software safety is not specifically addressed in IEC 61010-1 at present and therefore, there
are no specific guidelines for this work. A draft collateral standard is in preparation and also
* K' m0 v7 m. n7 ]7 XIEC 61508 deals with this topic.
/ p; e: e% F3 ]7 O+ Z) g& nGenerally, it is advised that devices should not be dependent on software alone for their
safety. There should be a separate independent means provided which acts to prevent a
. }/ Y/ I+ Q4 x; Fdangerous condition arising.
Explanation:
! V% Y" q3 w+ g3 S: t# jExperience shows that the analysis of software systems to ensure their safe operation is very
# Q8 Q" [: P7 }, w! J7 s6 r: H+ Pdifficult and in practice, can only provide a measure of confidence. Additionally, the
methods of performing the examination are not widely agreed upon and therefore, subject to
0 y$ t7 m" y* d! h0 ?+ ldoubt. In these circumstances, it is preferred to adopt safety limit methods known from
experience to be effective.
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