Vacuum Interrupter Open-Gap Withstand Test Inspection

Inspection template for recording high-voltage withstand results across open vacuum interrupter contacts to verify vacuum integrity and identify loss of vacuum through withstand failure.

Inspection Identification

• Equipment identification recorded
  Enter the switchgear, breaker, or vacuum interrupter asset ID, serial number, or unique equipment tag.
• Test location recorded
  Enter the facility, room, lineup, cubicle, or field location where the test was performed.
• Test date and time recorded
  Record when the withstand test was performed.
• Reason for test documented
  Select the operational reason for performing the test.

Safety and Test Readiness

• Lockout-tagout applied and verified
  Confirm the equipment is de-energized and isolated under an approved lockout-tagout procedure.
• Qualified personnel and test boundaries established
  Confirm only qualified personnel are present and the test area is controlled.
• Required PPE available and worn
  Select all PPE used for the test activity.
• Test instrument and leads inspected
  Confirm the hipot/test set, leads, grounding, and connectors are in safe condition with no visible damage.

Test Setup and Equipment

• Test instrument identification recorded
  Enter the make, model, and serial number of the high-voltage test set or hipot unit.
• Calibration status current
  Confirm the test instrument calibration is current and traceable.
• Open-gap test configuration verified
  Confirm the vacuum interrupter contacts are open and the test is configured across the open gap.
• Grounding and discharge arrangement verified
  Confirm proper grounding and discharge procedures are in place before and after the test.

Withstand Test Results

• Applied test voltage recorded
  Enter the applied high-voltage withstand level used for the test.
• Test duration recorded
  Enter the duration that voltage was held across the open contacts.
• Withstand result
  Select whether the interrupter maintained dielectric withstand across the open gap.
• Evidence of vacuum loss or dielectric breakdown observed
  Select any abnormal observations during the withstand test.

Deficiencies and Corrective Actions

• Deficiency or non-conformance documented
  Describe any deficiency, abnormal reading, or failed test condition.
• Corrective action initiated
  Record the immediate corrective action, repair plan, or escalation taken after a failed test.
• Equipment tagged out of service if failed
  Confirm failed equipment was removed from service or otherwise controlled pending disposition.

Sign-Off

• Inspector signature
  Signature of the person performing the inspection/test.
• Reviewer or supervisor acknowledgment
  Optional review signature for QA, maintenance, or supervisory approval.