|
|
! @! i. P/ A3 K. w2 ?9 @& W1 ]7 ]# R: E* }3 \
| DSH 295: B! s6 b2 H/ n. R5 q; B
| Object
& c. u" F. {" d- H% P | 1.20 e" U- Q1 v2 M, A, G0 N( \+ o
| 61010-1(ed.1);am1;am2
7 C1 t$ y) {/ k# o | 7 d0 C+ T0 q" K2 T
$ S+ s# ~' w2 V' n( U8 wStandard:6 q5 G5 R. N0 E. K* J3 ^ r3 s
IEC 61010-1:1990' t% Y1 D$ ] S2 |
+A1:1992+A2:1995
& C9 J" K5 \: e. fSub clause:: P9 v3 R. x9 i+ J$ {
1.2$ N2 \$ Z8 l+ F! Z+ F; T
Sheet n. 295+ H: }+ X2 N0 {
Page 1(1)
% s4 a% o) P+ A2 A8 p ]- nSubject:0 h0 R8 n4 }( g. s, A" ]
Object6 z2 `. }6 z* e3 \. S$ D
Key words:/ h1 M8 I+ |3 H$ A/ u0 Z3 B2 ?" ?
- Scope
. N# h5 O' c) @# r9 c- Software Safety
+ [6 b/ }! H1 a$ WDecision taken by+ Z. S; S7 N% l/ F9 ~
ETF3 and confirmed' N. o/ F$ @+ m9 R$ J+ Y* F
by CTL at its 38th c; V/ ?+ W ^; R
meeting, in Toronto
# [8 O% R/ m+ |4 g* ^Question:
* n' B* Z% H: D8 Z; m' tIf safety is dependent on Software, what criteria do laboratories employ to ensure- l B' l7 ~+ t2 H* o
compliance?: e: A* w- `, w
Decision:
8 [( F' b6 `. |: |: oSoftware safety is not specifically addressed in IEC 61010-1 at present and therefore, there' f* r3 r: A% U6 |* Q
are no specific guidelines for this work. A draft collateral standard is in preparation and also- r# A2 I$ K4 j* M! i. @
IEC 61508 deals with this topic.
& }) ^+ m( Z& c1 D) D4 M% B% s* bGenerally, it is advised that devices should not be dependent on software alone for their" }' n3 I" ~; n0 C* U+ \) Y
safety. There should be a separate independent means provided which acts to prevent a& D* B$ w/ n" J. \# H2 u! A
dangerous condition arising.
9 ~- E- }/ f G0 G HExplanation:
% X: i* i+ Y% N3 F9 S" L$ B3 M' QExperience shows that the analysis of software systems to ensure their safe operation is very/ } i1 K4 x3 P& j$ l
difficult and in practice, can only provide a measure of confidence. Additionally, the
$ O7 ?- l' g- N: |2 bmethods of performing the examination are not widely agreed upon and therefore, subject to; p" s/ m9 F( _ g
doubt. In these circumstances, it is preferred to adopt safety limit methods known from
" w+ C9 w" u! wexperience to be effective.) z$ C$ \; W, p4 l& S
" g& T9 F' k$ p- V9 T# J: W9 p3 o, s) z. }0 f2 g: l- Q8 i
; A. [ |. }. V3 N2 z5 j |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?注册安规
x
|