Information On Measuring The System Leakage Current - Siemens ARCADIS Varic Replacement Instructions Manual

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Information on measuring the system leakage current

NOTE
Observe the instructions in the safety rules for installation and repair (ARTD-002.731.17 ...).
WARNING
First measured value
The first measured value was already determined and documented in the system leakage
current protocol. The measuring procedure was also recorded.
The measurement was performed with the recorded line voltage, line frequency and with
the recorded measuring equipment.
Measurement
Perform the measurement according to DIN VDE 0751, Part 1 (see ARTD-002.731.17....),
and record the determined value.
The measuring procedure indicated in the protocol must be used.
If the first measured value has to be newly determined (see note), a measuring procedure
can be selected (direct measurement or differential measurement).
Measurement of the system 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 system leakage current measuring
instrument and any additional manufacturer's instructions restricting the use of the mea-
suring device.
ARCADIS
System Manual
If parts in the primary circuit (e.g. power cable, line filter, power
transformers, or complete ON/OFF assemblies) are replaced dur-
ing service work, the system leakage current measurement must
be subsequently performed and recorded as a repeat measure-
ment.
However, the first measured value must be newly determined and
a new protocol must created under the following conditions:
- Lack of system leakage current measurement documentation.
- Local line voltage or line frequency deviating from the line volt-
age and line frequency documented in the report (e.g. in the event
of a site/operator change).
- Use of a different procedure for measuring the system leakage
current from the one documented in the report.
For the purpose of traceability, reference to the new report must
be written on the old report. The reason for newly determining the
first measured value must be documented and confirmed with a
name and signature.
Electrical voltage!
Non-compliance can lead to severe injuries and even death.
The leakage current measurement may be performed on systems
of protection class I only after the ground wire test has been
passed.
n.a. SP00-000.841.01
Rev. 01
Page 6 of 10
08.05 CS PS 24
General
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