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|  DSH 431- v! K4 V+ n _! B$ @" B9 F
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| Flexible shafts
}, [3 Z1 A& b | 17, 17c)$ A% z4 C* m8 \4 \9 M
| 60601-1(ed.2);am1;am2
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Standard(s)- (year and edition):4 P7 l& {6 e/ y- q6 u! P2 b6 n
IEC 60601-1:1988 Ed.2 Am1+Am2, L& m J1 c# k8 y" X2 i+ |
Sub clause(s): 17, 17c)
0 J* H. y; ?# A8 L' [" QSheet n°: DSH-431
! c7 l- t, V. G$ G0 o( m* XSubject: Flexible shafts, f. Y2 L! O) e* I' I; W
Key words: Shaft, accessible, applied part4 t8 T( }; Q0 ~/ E' N
Confirmed by CTL at its 39th meeting, in Cologne6 e1 r- a, L& \9 p3 \
Question:
8 L5 O3 x3 ]2 h% NHand held flexible shafts driven APPLIED PARTS may have parts of the flexible shaft which
R5 Q s$ C2 @, fare accessible and not connected to PROTECTIVE EARTH.
! B0 ~+ g. r/ U0 Y- ZThis particularly applies to the termination of the flexible shaft which is normally of metal for `. z; V' v+ _0 x" H$ s- e( T" g& r
durability and strength.# E& G$ L# x1 _
Decision:
" z5 r/ M4 t8 e# t9 f4 }# KHand-held flexible shafts driving an APPLIED PART, e.g. Surgical or Dental drill, may be
: a3 L* }) A2 K3 k: Fconsidered part of the APPLIED PART and therefore the requirements of Sub-clause 17c) will- g% \- S! p/ l% Q& t8 \% U
not apply to the ACCESSIBLE PARTS of that flexible shaft. 17d) shall apply- z( n; ^' s: ]; L: c; k7 X
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发表于 2012-11-5 10:25
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