I Nominal Test; I Limit Test - Fluke 150X Series Calibration Manual

150X Series
Calibration Manual

I Nominal Test

This test verifies the ability of the DUT to maintain the nominal insulation test current while
loaded.
1. Connect the Fluke 5320A high resistance output terminals to the DUT
terminals.
COM
2. Set the 5320A to the high resistance source function (H).
3. Set the 5320A for the Applied Load called out in
4. Press T and make sure that the Fluke 5320A current reading is >1000.0 μA for
steps 1-5.
Step Function
1 Insulation
2 Insulation
Insulation
3
(1507/1508)
Insulation
4
(1507/1508)
Insulation
5
(1507/1508)

I Limit Test

This test verifies the internal insulation function of the DUT and current limit operation.
1. Connect the Fluke 5320A high resistance output terminals to the DUT
terminals.
COM
2. Set the Fluke 5320A to the high resistance source function (H) and 50 kΩ.
3. Set the DUT rotary switch to the 1000 V range.
4. Press and hold T.
5. The Fluke 5320A current reading should be <2000.0 μA.
18
Table 8. I Nominal Test/Limit Test
Range
1000 V 1 MΩ
500 V 500 kΩ
250 V 250 kΩ
100 V 100 kΩ
50 V 50 kΩ
Table 8 for Steps 1-5.
Applied Load
and
INSULATION
5320A Current Reading
>1000.0 μA
>1000.0 μA
and
INSULATION