Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
11.05 CS SD 24
General start-up information 21
Page 21 of 70
Medical Solutions
In the case of maintenance or repairs, perform the protective conductor resistance mea-
surement again.
Document and assess the values determined in the repeat measurement.
The measurement must be performed according to DIN VDE 0751, Part 1 (see ARTD
Part 2). The protective conductor resistance for all touchable conductive parts must be
measured during the normal operating state of the system.
Make sure that control cables or data cables between the components of the system are
not mistaken for protective conductor connections.
During the measurement, move the power cable and additional connection cables with an
integrated protective conductor section by section to detect cable breaks.
The protective conductor resistance must not exceed 0.2 Ohms.
The values determined in the repeat measurement must be recorded and assessed, and
the measuring points noted, in the protective conductor resistance report.
The measuring procedure and the measuring device used (designation and serial num-
ber) must also be documented.
NOTE
For evaluation purposes, the first measured value and the values
documented during maintenance or safety checks must be com-
pared to the measured values. A sudden or unexpected increase
in the measured values may indicate a defect in the protective con-
ductor connections (protective conductor or contacts) - even if the
limit value of 0.2 ohms is not exceeded.
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