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8. When making the testing of specimen with large
capacitance, the grounding of the instrument and the specimen
should not be in the same place to prevent the reverse breakdown
voltage or traveling waves which may affect the safety of the
instrument.
9. The step-up device is available in the instrument. It is
necessary to be careful about the
insulation distance of high
voltage lead and personnel safety.
10. The instrument must be grounded reliably. Poor grounding
may cause danger.
11. After the starting of the instrument, except in special
circumstances, the power is not allowed to be turned off suddenly
to avoid the over-voltage which may destroy the equipment.
12. Although the HVx special high-voltage wire equipped with
the instrument is made factory inspection, it still should be far away
from human beings and low-voltage test line. Both the high-voltage
core and high-voltage shielding cable are not allowed to be
grounded and contact with the low potential of the testing circuit.
The core and shielding cable of Cx input line are not allowed to
contact with part with high-voltage.
13. The instrument should be protected from the moisture and
excessive vibration.
