Electrical Equipment Inspection Checklist
Make electrical checks predictable and traceable. This checklist gives technicians and supervisors a clear routine for routine maintenance, visual inspection, and safety verification — so issues are caught early and equipment returns to service confidently. It starts with safe work setup (qualified personnel, PPE, permits/LOTO, one-line/SOP on hand) and a quick area scan to control access and remove slip/trip hazards before covers come off.
The walk-through then moves from outside to inside, lowest risk to highest: confirm nameplate data and labeling (circuit IDs, arc-flash/shock warnings), inspect enclosures and cooling paths, and look for signs of heat, moisture, dust, or corrosion. Cords, plugs, glands, and terminations are checked for cuts, looseness, and discoloration; protection and controls are verified for correct type and basic function. Where applicable, de-energized tests and energized checks confirm that the equipment operates as intended without abnormal noise or vibration. Thermal imaging, ventilation/filter checks, and power-quality notes round out condition monitoring.
Use whatever format fits your site. Print a PDF for panel-side checks in low-signal areas, or run the mobile version to time-stamp steps, attach thermography images, record readings, and trigger maintenance tickets instantly. Review and tune the checklist quarterly — align pass/fail limits with OEM manuals and coordination studies, add site-specific hazards, and retire steps that don’t add value. Consistent use reduces arc-flash and shock risk, cuts unplanned outages, and builds an auditable history you can share with EHS, QA, and insurers.
Work permit / LOTO applied and verified (locks, tags, zero energy)
PPE appropriate
One-line diagram / SOP available at point of work
Area barricaded, no unauthorized access / slip or trip hazards
Asset ID and nameplate legible
Latest test records and maintenance log available
Firmware/config backup (drives/relays/PLCs) current
Record meter reading / run hours
Enclosure doors latch, gaskets intact, IP/NEMA rating maintained
Clearances maintained, ventilation grills unobstructed
No signs of overheating (discoloration/odor), moisture, dust buildup
Labels present: arc-flash, shock, isolation points, circuit IDs
Upload photo of nameplate and enclosure interior (after LOTO)
Power cords/cables free of cuts, kinks, abrasion, strain reliefs intact
Plugs/receptacles undamaged, ground pin present, no arcing marks
Conduit entries sealed, cable glands tight, no exposed conductors
Terminations tight (no looseness, discoloration), lug insulation intact
Breakers/fuses sized per spec, spares available, no nuisance trips
RCD/GFCI present where required, test button trips device
E-stops, interlocks, and guards functional, reset works
Surge protection (SPD) installed and status OK (indicators)
UPS status normal, battery health within range, alarms clear
Insulation resistance (record lowest reading, MΩ)
Earth/ground continuity verified (record resistance if measured, Ω)
GFCI/RCD trip test recorded (if measured, ms)
Control circuits operate as intended (start/stop, interlock chains)
No abnormal vibration/noise on fans, pumps, drives
Filters clean, fans spin freely, heat sinks/radiators free of dust
Voltage within tolerance at load terminals (V)
Phase balance OK, no visible flicker
Power removed and verified before internal cleaning
Dust/debris removed with approved methods (ESD-safe)
Electrolyte/VRLA case condition good, no swelling or leaks
Terminal torque/cleanliness OK, corrosion treated
Meters/sensors calibrated per schedule, stickers/date updated
Protection setpoints verified against latest coordination study
All covers/guards restored, tools and tags removed
Alarms/events reviewed, faults cleared and documented
Outstanding defects noted with priority and WO raised
Upload photos of corrected issues or tagged defects














