IEC 60601-1:2005/AMD1:2012/COR1:2014

IEC 60601-1:2005/AMD1:2012
(Amendment 1 to the third edition)

Medical electrical equipment –
Part 1: General requirements for basic safety and essential performance

CO RRI G E NDUM 1
Figure 12 – Example of a measuring device and its frequency characteristics
Replace, in the text of the vertical axis of b) Frequency characteristics, "dB: 20" by
"(dB):20 log" as follows:
+20
R
Voltage
R
Z V
C
1 measuring
−20
b)
instrument
−40
a)
R1 10 kΩ ± 5 %
−60
a)
R  1 kΩ ± 1 %
C  0,015 µF ± 5 %
IEC
2 3 4 5 6
10 10 10 10 10
Frequency f  (Hz)
IEC
a) Measuring device b) Frequency characteristics
NOTE   The network and voltage measuring instrument above are replaced by the symbol              in the
MD
following figures.
a)
Non-inductive components
b)
Resistance ≥ 1 MΩ and capacitance ≤ 150 pF
c)
Z(f ) is the transfer impedance of the network, i.e. Vout/Iin, for a current of frequency f.

Figure 12 – Example of a measuring device and its frequency characteristics

July 2014
Z(f)
c)
Relative magnitude  (dB): 20 log
Z(f = 10)
IEC 60601-1:2005/AMD1:2012
(Amendement 1 à la troisième édit
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