Insulation Tests; No-Load Current Value - Hitachi DH 25PA Technical Data And Service Manual

9-6. Insulation Tests

On completion of reassembly after repair, measure the insulation resistance and conduct the dielectric strength
test.
Insulation resistance: 7 MΩ or more with DC 500 V Megohm Tester
Dielectric strength : AC 4,000 V/1 minute, with no abnormalities
AC 2,500 V/1 minute, with no abnormalities

9-7. No-Load Current Value

After no-load operation for 30 minutes, the no-load current value should be as follows.
Voltage (V) 110
6.2
Current (A) Max.
115 120
5.9 5.7
--- 28 ---
220 V --- 240 V
• • • • • • • •
(and 110 V for U.K. products)
110 V --- 127 V
• • • • • • • •
(except for U.K. products)
127 220
5.4 3.1
230 240
3.0 2.8