temperature, the cold device surfaces cool the air in the immediate vicinity, which leads to
formation of condensation even inside the device.
In this process, two factors are crucial:
The higher the relative air humidity, the faster the dew point is reached and water is
condensed.
The higher the temperature difference between the surfaces and the ambient air, the
stronger the tendency for condensation.
Always prevent condensation in devices. Temper the device and system before and
during the measurements so that no condensation occurs.
No operation in areas with risk of explosion and fire
Measurements in direct contact with water, in environments with explosive gases and in
areas with fire risks are not permitted.
Cleanliness of oil breakdown voltage tester
To achieve reliable measurement results, the oil breakdown voltage tester, the test chamber,
the HV isolators, the test containers and all tools that come into contact with the oil must be
clean.
BAUR GmbH recommends cleaning the HV isolators at least once a year to guarantee
maximum accuracy.
HV isolators may be cleaned only by qualified technical staff authorised by BAUR.
In case of questions, please contact BAUR GmbH or your local BAUR representative
(http://www.baur.eu/baur-worldwide).
Lifting and carrying the oil breakdown voltage tester
The DTA 100 C oil breakdown voltage tester weighs up to 39 kg. It is recommended to
seek the help of another person to lift or carry the device.
2.3.1 Dangers when working with electric voltage
A dangerous voltage of up to 100 kV is generated during measurements with the
DTA 100 C. Operating personnel need to pay special attention and must be very careful
while working with electric voltage.
Dangerous electric voltage
Danger to life or risk of injury due to electric shock
Connect the oil breakdown voltage tester as described in this user
manual.
Take particular care to ensure the oil breakdown voltage tester is
earthed properly.
Before carrying out any cleaning or maintenance, switch off the
device and remove the mains plug to ensure the oil tester is
completely disconnected from the mains voltage.
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