小米 发表于 2012-11-5 10:25

DSH 431 Flexible shafts


http://decisions.iecee.org/icons/ecblank.gif DSH 431

Flexible shafts
17, 17c)
60601-1(ed.2);am1;am2


Standard(s)- (year and edition):
IEC 60601-1:1988 Ed.2 Am1+Am2
Sub clause(s): 17, 17c)
Sheet n°: DSH-431
Subject: Flexible shafts
Key words: Shaft, accessible, applied part
Confirmed by CTL at its 39th meeting, in Cologne
Question:
Hand held flexible shafts driven APPLIED PARTS may have parts of the flexible shaft which
are accessible and not connected to PROTECTIVE EARTH.
This particularly applies to the termination of the flexible shaft which is normally of metal for
durability and strength.
Decision:
Hand-held flexible shafts driving an APPLIED PART, e.g. Surgical or Dental drill, may be
considered part of the APPLIED PART and therefore the requirements of Sub-clause 17c) will
not apply to the ACCESSIBLE PARTS of that flexible shaft. 17d) shall apply


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