Hioki ST5680, Instruction Manual, Page: 85 / 253

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7
Dielectric Breakdown Voltage
(BDV) Measurement Mode
The dielectric breakdown voltage (BDV) mode is a function to automatically raise the test voltage
for a withstand voltage test and measure the breakdown voltage.
In the BDV measurement mode for this instrument, tests that conform to the following standard
requirements can be performed.
• JIS C 2110-2 Solid electrical insulating materials - Test methods for dielectric breakdown
strength (“electric strength”) - Part 2:
Tests using direct voltage
• IEC 60243-2 Solid electrical insulating materials-Test methods for electric strength- Part 2:
Tests using direct voltage
BDV test details
Test method
Continuous voltage rise test: Raises the test voltage at a constant rate from the initial voltage.
Gradual voltage rise test: Raises the test voltage gradually from the initial voltage.
Gradual voltage rise test Continuous voltage rise test
t t
V V
Setting details
Continuous
voltage rise test
Initial voltage, end voltage, voltage rise speed, distance between electrodes, number of
tests
Gradual voltage
rise test
Initial voltage, voltage holding time at each phase, voltage step, maximum number of steps,
distance between electrode, number of tests
7 Dielectric Breakdown Voltage (BDV) Measurement Mode
Dielectric Breakdown V
oltage (BDV) Measurement Mode
HIOKI ST5680A961-00