DSH 295 Object

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

+ B3 [1 K. e3 e6 J5 s3 ?2 j

DSH 295 / w1 l5 r7 j. h1 z

Object

1.2

61010-1(ed.1);am1;am2 $ W5 R/ x% t! }) t# |8 N

! c9 m3 M' S  F
* k1 d% a- e9 W# lStandard:
IEC 61010-1:1990
+A1:1992+A2:1995
; D4 D% w! X5 o. V; y8 A+ e9 cSub clause:
1.2
( H6 _- f: v' QSheet n. 295
* S2 `7 `. k7 L5 \6 W0 PPage 1(1)
7 A8 t0 L5 {8 p7 y8 FSubject:
5 ]! e% r0 u$ }, X$ C2 pObject
+ r* l. Y. a" e- o% F! ?Key words:
- Scope
! ^+ Z" }4 i7 T6 P2 J) t  o- Software Safety
" f0 K# o8 i5 p0 V+ _1 dDecision taken by
9 e2 p, J2 f8 {3 b7 p1 z: TETF3 and confirmed
by CTL at its 38th
& \' |* i7 z/ B; S- w. y: ^meeting, in Toronto
8 ^6 z5 ]! a. r$ K" D6 @Question:
  {) w3 U2 F7 R! Z. a) z0 oIf safety is dependent on Software, what criteria do laboratories employ to ensure
compliance?
0 T' f' Y* B. K1 ?# ~: [& N6 ?0 bDecision:
* ~4 V& f8 D/ X8 L+ d$ {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
! L+ y& g6 s- N' q% xIEC 61508 deals with this topic.
% K( N/ b/ R" _  S8 N3 ~Generally, 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
dangerous condition arising.
- ]4 C, m# G" [8 {/ ~Explanation:
0 W, Z1 ^$ O# q0 T7 u# uExperience shows that the analysis of software systems to ensure their safe operation is very
) _. a$ z' z& I" ]difficult 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
% ]8 a; U  {% U$ L( Jdoubt. In these circumstances, it is preferred to adopt safety limit methods known from
3 i; b4 R, V" ^7 ?0 b  }% k( [experience to be effective.
( ~( a( v* V0 r
7 F% Y# \7 d  }$ a+ b
& T9 F0 B6 D9 c+ W3 |
) q7 N9 Y! z4 k# T2 H