Megger TDS40, Руководство по эксплуатации, Страница: 28 / 71

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This applies in particular to all changes made on an existing safety device.
The test and diagnosis system TDS40 generates during the test process a dangerous
test voltage up to 40 kV or the test and diagnosis system TDS60 a test voltage up to 60
kV resp. The test voltage is fed via the HV connecting cable in the test object.
Protect the test object against unintentional contact of persons to active parts by means
of protective devices (handrails, chains, bars, etc.) which guarantee that no one can get
into the zone of danger.
Disconnect the test object to ensure that no dangerous voltage can get to unprotected
places or unprotected technical equipment.
Whenever the test and diagnosis system is operated, a second person must be present
within viewing and hearing distance who can recognise possible hazards and press the
Emergency Off key.
Never leave the test and diagnosis system unattended while operating.
In order to avoid dangerous charging, connect all metal parts in the vicinity of the test
and diagnosis system to earth.
As a matter of principle, all unused cables not needed for the test have to be shorted
and connected to earth.
Attention! The test object has to be connected to earth and shorted after terminating
of the test.
You are not excused from this duty even if the complete discharge by the
internal discharging unit and the zero positioning of the residual voltage
(Fig. 3, item 2) have been performed.
In the case of an incomplete discharge of the test object the complete
discharging must be carried out with a suitable discharge rod.