Run Insulation Resistance and Polarization Index Test — Free

Inspection Details

Asset type critical (required)

Select the equipment being tested.

Note (optional)

Asset identification critical (required)

Record equipment tag number, feeder ID, or cable circuit identifier.

Location

Record the physical location or room where the test was performed.

Test date and time critical (required)

Record when the insulation resistance test was performed.

Test purpose

Select the reason for the test.

Safety and Test Preconditions

Lockout-tagout applied and verified critical (required)

Confirm the equipment is isolated, de-energized, and locked out/tagged out before testing.

Yes No N/A

Absence of voltage verified critical (required)

Confirm absence of voltage using an approved meter before connecting the Megger.

Yes No N/A

Test leads and meter condition acceptable critical (required)

Inspect the insulation tester, leads, clips, and probes for damage, contamination, or loose connections.

Yes No N/A

Work area controlled and barricaded

Confirm the test area is controlled so unauthorized personnel cannot contact exposed conductors.

Yes No N/A

PPE appropriate for electrical testing critical (required)

Verify required PPE is worn per site electrical safety procedure and task hazard assessment.

Yes No N/A

Environmental and Test Conditions

Ambient temperature critical (required)

Record ambient air temperature at the test location.

Winding or conductor temperature critical (required)

Record the measured or estimated insulation temperature used for correction.

Relative humidity

Record humidity if available, as it may affect interpretation of results.

Insulation system condition

Select the observed condition of the insulation before testing.

Temperature correction factor applied

Enter the factor used to correct insulation resistance to the reference temperature.

Insulation Resistance Test Results

Test voltage critical (required)

Record the DC test voltage applied by the insulation resistance tester.

One-minute insulation resistance critical (required)

Record the insulation resistance reading at one minute.

Ten-minute insulation resistance critical (required)

Record the insulation resistance reading at ten minutes.

Polarization index critical (required)

Calculate PI as ten-minute reading divided by one-minute reading.

Temperature-corrected insulation resistance

Record the corrected insulation resistance value at the reference temperature.

Acceptance, Deficiencies, and Closeout

Results meet acceptance criteria critical (required)

Confirm the readings meet the project, OEM, or IEEE 43-based acceptance criteria used for this asset.

Yes No N/A

Deficiencies noted

Select any deficiencies observed during the test or review.

Corrective action / follow-up

Describe corrective action taken or recommended follow-up, including retest, drying, cleaning, or repair.

Inspector signature critical (required)

Inspector sign-off confirming the test record is complete and accurate.

Get your results

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Run: Insulation Resistance and Polarization Index Test

Inspection Details

Safety and Test Preconditions

Environmental and Test Conditions

Insulation Resistance Test Results

Acceptance, Deficiencies, and Closeout

Get your results