5-15
4.5 Insulation Resistance Test
An insulation resistance should be measured under the conditions specified below, in order to confirm that
the requirements of the judgment standard are met.
1) Measuring conditions
•
Measuring instrument:
500V DC MEGOHM Meter
•
Testing point:
Between the power circuit block and the exposed metallic block
(D-SUB connector)
•
Measured value readout:
A test voltage should be applied for one minute and the resistance
value should be read out thereafter.
2) Judgment standard:
10M
Ω
or more
