Notes On Device Leakage Current Measurement - Siemens POLYMOBIL III Start-Up Instructions

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Notes on device leakage current measurement

Observe the instructions in the safety rules for installation and repair (ARTD-002.731.17).
WARNING
Initial measurement
Perform the device leakage current measurement after completion of all work.
Perform the measurement according to DIN VDE 0751, Part 1 (see ARTD-002.731.17...),
and record the determined value as the first measured value.
Measurement of the device leakage current according to the differential current method
(measuring arrangement according to Fig. 2) must be given preference, since no danger
for the person performing the measurement and other persons arises during the measure-
ment.
However, please note the minimum resolution of the leakage current measuring instru-
ment and any additional manufacturer's data restricting the use of the measuring instru-
ment.
Fig. 2 Measuring circuit for measuring the device leakage current according to the differential current method
according to DIN VDE 0751-1:2001-10, Fig. C6 for protection class
1 = System
2 = Application part (not present)
3 = Measuring arrangement (integrated in the measuring instrument)
If the direct measurement of the device leakage current is used
(measuring arrangement according to Fig. 3), then the system must be set up insulated
during the measurement and must not be touched during the measurement.
POLYMOBIL III
Electrical voltage!
Non-compliance can lead to severe injuries and even death.
The device leakage current measurement may be
performed on systems of protection class I only after the
protective conductor test has been passed.
RXB8-115.034.02
Rev. 03
I
.
Page 6 of 8
04.05 CS PS 24
Requirements
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