Electrical systems are hazardous by nature. Proper operation is critical. A single missed torque check or loose lug can cause a fire that halts production, or worse, puts your people in harm’s way.
An electrical inspection checklist gives your team a clear, repeatable process to catch risks like these before they escalate. In this guide, you’ll get a comprehensive checklist you can adapt to your facility so it remains safe and compliant at all times.
Key takeaways
- A well-structured inspection checklist ensures your team catches hazards early and stays compliant with NFPA 70B, National Electrical Code (NEC), and local code.
- Break inspections into six focus areas: visual inspection, testing and measurement, cleaning and lubrication, mechanical and operational checks, backup power and safety systems, and documentation.
- Customize the checklist for your facility by aligning with Authority Having Jurisdiction (AHJ) requirements, original equipment manufacturer (OEM) guidance, and your preventive maintenance (PM) schedule.
- Increase inspection frequency for older equipment, harsh environments, or assets with a history of issues.
- Using a computerized maintenance management system (CMMS) simplifies scheduling, recordkeeping, and follow-up work orders.
What should an electrical inspection checklist include?
Below is a practical checklist for low- to medium-voltage systems you can tailor to your facility. We’ve grouped the work into six buckets so your team can move methodically and avoid missed steps.
Download your free electrical inspection checklist PDF
Download our electrical inspection checklist for a deeper dive into each of these guardrails.
How to customize an electrical inspection checklist for your facility
You’ve got the core list. Now tune it so it fits your site, your electrical system, and your team.
Use OEM guidance to set the bar
Start with the manual. Pull the maker’s torque specs, insulation-resistance limits, battery replacement intervals, and breaker/ATS test steps, then add them to the task for each asset so techs know what “good” looks like.
Also, make sure to capture site-specific needs, such as GFCI near sinks or counters and weatherproof covers in wash-down areas.
Adhere to the rules that apply to you
Confirm what your Authority Having Jurisdiction (AHJ) enforces from NFPA 70B and the NEC. In practice, that often means adding tasks that verify GFCI protection for receptacles in wet locations (outdoors, kitchens, wash bays, garages) and around swimming pools, plus AFCI where the AHJ requires it on specific branch circuits.
Also consider relevant industry-specific regulations. For example, food processing facilities may have extra wash-down and moisture-protection requirements, while manufacturing or warehousing sites may need added safeguards for high-voltage machinery or hazardous locations.
If you maintain housing or offices on site, include checks for luminaires, lighting outlets, and dimmers per local building code. Tie every code-driven item to a clear pass/fail step you can show during electrical safety inspections.
Align with your preventive program and production
Map each checklist item to your existing cadence—weekly walkthroughs, quarterly infrared scans, annual breaker service. Schedule intrusive work (de-energized panels, torque/cleaning, relay tests) during planned stops, not peak runs. Then, add a final sign-off step so a supervisor confirms guards are reinstalled, working space is clear, labels are on, and the asset is safely back in service.
Adjust for age, environment, and construction
Older gear and equipment in harsh areas need extra eyes. If you see corrosion on enclosures, water near a water pipe, or outdoor boxes that aren’t truly weatherproof, increase the frequency for those assets.
For legacy installs, add checks for aluminum conductors (anti-oxidant and torque), raceways and connectors with physical damage, and proper equipment grounding/grounding electrode conductor bonding. In basements or docks, include moisture/condensation checks on junction boxes, metal boxes, and panelboards.
Bring in the right expertise
Keep routine checks and cleaning in-house. For anything that changes protection or coordination, call a licensed electrician or engineer—think relay testing, breaker/relay setting changes, or work on service-entrance conductors.
Loop in environmental, health, and safety (EHS) on tasks with shock risk or code implications. They’ll help tighten wording (e.g., “no exposed conductors,” “verify bonding jumpers on metal parts”) and make sure you keep a clean, audit-ready paper trail.
What is the recommended electrical inspection interval for an industrial facility?
There is no one standard inspection cadence that fits every shop. Start with these practical guardrails, then fine-tune based on your environment and history:
- Switchgear and motor control centers (MCCs): Do visuals every year. Perform full preventive maintenance every one to three years (plan a deeper service roughly every three).
- Circuit breakers: Exercise annually and complete functional testing/maintenance every one to three years.
- Transformers: Annually—oil testing where applicable, in addition to the standard annual inspection, to check for moisture, acidity, and insulation breakdown.
- UPS systems: Test batteries quarterly. Complete a full functional test each year.
- Standby generators: Conduct weekly no-load runs and an annual load-bank test.
- Infrared thermography: Annually. Increase to semi-annually on critical equipment—gear whose failure would cause major safety risks, production loss, or costly downtime.
- Grounding systems: Every one to three years (visual checks and resistance testing).
- GFCIs and safety interlocks: Annually or per the manufacturer.
- Emergency lighting and alarms: Semi-annually to annually with a documented power-loss test.
What are the most common mistakes during an electrical inspection?
Even experienced teams miss things when moving too quickly. Use this list to tighten your electrical inspection checklist and stay aligned with the NEC during routine electrical safety inspections.
Skipping documentation
Log test results for GFCI and AFCI devices, torque values on terminations, and any adjustments to circuit breakers or overcurrent protection.
Photograph panelboards and the service panel directory, label disconnecting means, and note any corrections to junction boxes, raceways, connectors, or splices. Good records speed up the final inspection and protect you if a building code official asks for proof of work.
Not testing under load
No-load checks miss real problems. Verify function with the equipment running: receptacles at kitchen countertops, dishwashers, light fixtures and dimmers, and other branch circuits that see everyday demand.
Watch for nuisance trips, voltage drop, heat at metal parts, and weak breakers. In wet locations and garages, press the test button on ground fault circuit interrupters to confirm GFCI protection holds under expected load.
Failing to follow up on flagged issues
Create work orders for anything you tagged—loose or corroded terminations, exposed wiring, missing covers on metal boxes, improper size of conductors, or unclear labeling in the electrical panel. Fix the item, retest, and document the repair.
Then, confirm proper grounding and bonding, including the grounding electrode conductor and any bond to the water pipe, before you sign off on the electrical services.
Not checking meter calibration
Verify calibration dates on clamp meters, multimeters, and insulation testers before you start. Replace damaged leads and compare readings against a known source.
Why use a CMMS for electrical inspections?
Once your electrical inspection checklist is set, the real work starts: assigning tasks, keeping dates straight, and proving what got done.
A CMMS handles that admin so your team can focus on the electrical system itself.
- Make compliance easy. A CMMS gives you an audit-ready trail aligned to NFPA 70B and NEC requirements. When an inspector asks for proof, you can pull up photos of junction boxes, lighting outlets, and disconnecting means in seconds.
- Spot issues sooner. Dashboards, built from inspection data collected in your CMMS, surface patterns you might miss on paper. If one area (say, wet locations near docks or garages) shows repeated failures or corrosion, you can tighten intervals or plan an upgrade before it becomes an electrical hazard.
- Close the loop fast. When you flag something during the walkthrough—exposed wiring, a missing cover on a metal box, or damaged connectors—the CMMS can auto-create a corrective work order with parts, priority, and due dates. Technicians get mobile checklists and can attach photos from the field before marking the job complete.
- Keep everything in one place. Your one-line diagrams, panel schedules, and asset histories live alongside each job. You can schedule by time or meter, track labor and material costs, and maintain inventory for common items (weatherproof covers, listed wirenuts, dimmers) all in one application.
How to manage and automate electrical preventive maintenance
The fastest way to raise uptime is to run your electrical inspection checklist inside a mobile-friendly system your team will actually use. In MaintainX, you can:
- Build recurring inspections by panel, area, or voltage class
- Assign mobile work orders with photos, barcodes, and e-signatures
- Track completions in real time and export audit-ready reports
Download our electrical preventive maintenance checklist or visit our facility management page to see how teams standardize inspections with MaintainX.
FAQs
How often should you perform an electrical inspection?
Do a full visual walkthrough at least once a year, then schedule deeper preventive maintenance every one to three years for major gear like switchgear, MCCs, and circuit breakers. Tighten the cadence for older equipment and harsh areas (heat, dust, moisture), and consider quarterly infrared scans on critical loads to catch hot spots early.
Who is qualified to perform electrical inspections?
Trained in-house staff can handle routine, de-energized checks when they follow lockout/tagout and written procedures. Bring in a licensed electrician or engineer for energized testing, protection and coordination work (relay/breaker settings), service-entrance changes, or anything your Authority Having Jurisdiction (AHJ) requires.
What standards apply to commercial electrical inspections?
Use NFPA 70B for maintenance practices and the NEC plus local building codes for electrical installation and safety requirements. Your AHJ decides what’s enforced on site, and manufacturer instructions (torque values, test steps, intervals) are part of the standard of care.
What happens if I skip regular inspections?
You invite unplanned downtime, higher repair bills, and more safety risk from shock, fire, or failed equipment. Skipping also means no paper trail for insurers or auditors, which can slow projects and raise compliance issues.
What is the difference between infrared scanning and visual inspection?
A visual inspection finds obvious issues—blocked working space, missing covers, exposed conductors, damaged raceways, or corrosion. Infrared scanning looks at energized gear under load to reveal hidden hot spots from loose terminations, imbalanced phases, or failing breakers. They work best together.
What should an electrical preventive maintenance program include?
Cover the basics: clean and torque connections, replace worn parts, and lubricate only where the OEM calls for it. Add testing and measurement (infrared scans, insulation resistance, grounding continuity, and GFCI/AFCI trip tests), exercise disconnects and breakers, and test backup power (generators, ATS, UPS batteries). Document readings, photos, and fixes, and keep one-lines and panel schedules current, ideally within a CMMS.
Can I perform electrical inspections in-house, or do I need a licensed electrician?
Do routine, de-energized inspections in-house if your team is trained and equipped. Use a licensed electrician for energized work, protection settings, relay testing, service equipment, and any task that affects life safety or requires a formal sign-off from the AHJ.
The MaintainX team is made up of maintenance and manufacturing experts. They’re here to share industry knowledge, explain product features, and help workers get more done with MaintainX!
