Run Cable Insulation Resistance Megger Test Record — Free

Inspection Details

Inspection date and time recorded critical (required)

Inspector name and qualification documented critical (required)

Record the technician or competent person performing the test and any relevant qualification or certification.

Asset or work order reference recorded critical (required)

Enter the cable ID, circuit reference, panel designation, or work order number.

Test location documented

Record the site, building, area, or equipment lineup where the cable is installed.

Cable identification and endpoints documented critical (required)

Identify the cable by tag number, size, type, and source-to-destination endpoints.

Cable service status selected

Safety and Test Preconditions

Lockout-tagout applied and verified critical (required)

Verify the circuit is isolated, de-energized, and controlled per OSHA 1910.147 before testing.

Yes No N/A

Absence of voltage verified before megger test critical (required)

Confirm the cable is de-energized using an approved meter before applying insulation resistance test voltage.

Yes No N/A

Required PPE worn critical (required)

Select all PPE used based on the hazard assessment and site requirements.

Test area controlled and barricaded

Confirm unauthorized personnel are excluded and the test area is marked as needed.

Yes No N/A

Cable disconnected from sensitive equipment critical (required)

Ensure surge protection devices, electronic loads, drives, meters, PLCs, and other sensitive equipment are isolated before applying test voltage.

Yes No N/A

Test Equipment and Environmental Conditions

Megger or insulation resistance tester identification recorded critical (required)

Record manufacturer, model, and asset or calibration ID.

Test instrument calibration in date critical (required)

Verify the instrument calibration label or certificate is current.

Yes No N/A

Test leads and accessories inspected critical (required)

Check leads, clips, and probes for damage, contamination, or exposed conductors.

Yes No N/A

Ambient temperature recorded

Record the ambient temperature at the test location.

Relative humidity recorded

Record the relative humidity at the test location.

Insulation Resistance Test Results

Test voltage recorded critical (required)

Record the applied DC test voltage used for the insulation resistance test.

One-minute insulation resistance reading recorded critical (required)

Record the 1-minute insulation resistance reading in megohms.

Ten-minute insulation resistance reading recorded

Record the 10-minute insulation resistance reading in megohms when polarization index is measured.

Polarization index calculated and recorded

Record PI as the ratio of 10-minute IR to 1-minute IR when applicable.

Test method and measurement points documented

Describe the test configuration, such as conductor-to-conductor, conductor-to-ground, or phase-to-phase.

Readings stabilized and repeatable

Confirm the readings were stable enough to support the recorded result.

Yes No N/A

Acceptance, Deficiencies, and Closeout

Pass/fail status selected critical (required)

Select the final result based on the applicable acceptance criteria or project specification.

Acceptance criteria referenced

Document the project specification, OEM requirement, or standard used to determine acceptance.

Deficiencies or non-conformances documented

Record any abnormal readings, damaged insulation, moisture intrusion, contamination, or other defects.

Corrective action assigned

Describe the corrective action, retest requirement, or escalation path if the cable failed.

Inspector signature captured critical (required)

Signature of the person completing the inspection record.

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Run: Cable Insulation Resistance Megger Test Record

Inspection Details

Safety and Test Preconditions

Test Equipment and Environmental Conditions

Insulation Resistance Test Results

Acceptance, Deficiencies, and Closeout

Get your results