-11-
On completion of disassembly and repair, measure the insulation resistance, and conduct the dielectric
strength test.
Insulation resistance: After the switch is turned on, more than 10 M
Ω
by 500 V DC megohm meter between
live parts and accessible metal parts.
Dielectric strength: After the switch is turned on, there must be no trouble when the voltage indicated below
is provided between live parts and accessible metal parts.
Less than 150 V of the rated voltage: 3,000 V x 3 sec.
More than 150 V of the rated voltage: 4,400 V x 3 sec.
After no-load operation for 30 minutes, the no-load current value should be as follows.
Voltage (V)
110
120
127
220
230
240
Current (A) max.
6.3
5.2
4.8
3.0
3.2
3.4
Wiring diagram
Insulation tests
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Wiring diagram
No-load current value
