Insulation Resistance Test - NEC AccuSync LCD51VM Series Service Manual

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:
• Testing point:
• Measured value readout:
2) Judgment standard:
500V DC MEGOHM Meter
Between the power circuit block and the exposed metallic block
(D-SUB connector)
A test voltage should be applied for one minute and the resistance
value should be read out thereafter.
10MΩ or more
5-15