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

150X Series
Calibration Manual
18
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
INSULATION and
COM terminals.
2. Set the 5320A to the high resistance source function (H ).
3. Set the 5320A for the Applied Load called out in Ta b l e 8 for Steps 1-5.
4. Press T and make sure that the Fluke 5320A current reading is >1000.0 μA for
steps 1-5.
Table 8. I Nominal Test/Limit Test
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
INSULATION and
COM terminals.
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.
Step Function Range Applied Load 5320A Current Reading
1 Insulation 1000 V 1 MΩ
>1000.0 μA
2 Insulation 500 V 500 kΩ
3
Insulation
(1507/1508)
250 V 250 kΩ
4
Insulation
(1507/1508)
100 V 100 kΩ
5
Insulation
(1507/1508)
50 V 50 kΩ >1000.0 μA