Electrical Pre-Energization Walk-Through

Inspection template for verifying electrical systems are ready for energization, including grounds removal, label installation, phasing verification, and protective relay checks.

Inspection Details and Work Authorization

• Equipment and location identified
  Verify the exact equipment, feeder, lineup, or system boundary is identified on the inspection record.
• Energization authorization confirmed
  Confirm energization is authorized by the responsible supervisor, commissioning lead, or authorized representative.
• Qualified personnel present
  Verify the walk-through is performed by qualified electrical personnel and required support roles are present.
• Applicable drawings and one-line diagrams available
  Confirm current drawings, one-line diagrams, and commissioning documents are available at the worksite.
• Work area secured and access controlled
  Verify the area is barricaded or otherwise controlled to prevent unauthorized entry during inspection and energization readiness checks.

Grounds and Temporary Protective Devices

• Temporary grounds removed from all designated points
  Confirm all temporary grounds have been removed from buses, conductors, and equipment as required by the energization plan.
• Grounding cables and clamps accounted for
  Verify removed grounds, cables, and clamps are accounted for, tagged, and stored per site procedure.
• Temporary jumpers removed or documented
  Confirm temporary jumpers, test leads, and bypasses are removed unless specifically required for energization and documented.
• Protective device settings verified against approved coordination study
  Confirm relay, breaker, and protective device settings match the approved coordination study or commissioning settings sheet.
• No unintended grounds or bonds remain in the energized path
  Inspect for any remaining temporary bonds, grounds, or test connections that would affect energization or fault clearing.

Labels, Signage, and Identification

• Equipment nameplates and circuit identification installed
  Confirm equipment nameplates, feeder labels, and circuit identifiers are installed and match the as-built documentation.
• Shock and arc-flash warning labels installed where required
  Verify required warning labels are installed on applicable equipment and are visible at the point of access.
• Labels legible and permanently affixed
  Confirm labels are readable, durable, and securely attached in the final installed location.
• Phase identification markings installed
  Verify phase markings are present on conductors, terminations, and equipment where required by the project or site standard.
• Disconnects, breakers, and control devices labeled correctly
  Confirm operating handles, disconnects, breakers, and control devices are labeled to match their actual function and source.

Phasing and Electrical Verification

• Phase rotation verified
  Verify phase sequence/rotation matches the design requirement and connected loads.
• Incoming and outgoing phases match approved wiring diagram
  Confirm phase conductors are landed on the correct terminals per the approved drawings and field verification.
• Insulation resistance test completed
  Record insulation resistance test results for the applicable conductors and equipment prior to energization.
• Ground fault and continuity checks completed
  Verify ground fault checks and continuity checks were completed where required by the commissioning plan.
• No exposed conductors or loose terminations observed
  Inspect for exposed live parts, loose lugs, damaged insulation, or incomplete terminations that would prevent safe energization.

Protective Relays and Controls

• Protective relay settings verified
  Confirm relay settings match the approved settings sheet, coordination study, or commissioning record.
• Relay functional test completed
  Record whether relay pickup, trip, and alarm functions were tested and accepted per the commissioning plan.
• Control power and trip circuit verified
  Verify control power is present and trip/close circuits are intact and correctly wired.
• Interlocks and permissives tested
  Confirm mechanical and electrical interlocks, permissives, and alarms operate as intended.
• Outstanding relay or control deficiencies documented
  List any non-conformances, punch-list items, or open corrective actions that must be resolved before energization.