Free checklist
Main electrical switchgear / service section annual maintenance checklist
The annual main switchgear service is the deep pass: the measurements, cleanings and tests a quarterly round doesn't reach. This checklist keeps the full service on record with the photos that make it defensible later. Work is commonly verified against NETA guidance, NFPA 70B. Confirm the edition your authority having jurisdiction has adopted.
The checklist
Every item, and the photo evidence it needs
The photo count on each row is what RTI would require before the item can be submitted. Work the list here and watch the gate hold, or load it into RTI and let it enforce the real thing.
Outage planning
Outage plan agreed with the owner before the shutdown
Switching, window, loads, temporary power and restoration agreed with the owner in writing, and a utility disconnect or meter pull booked where the service section is in scope.
No photoInfrared scan under load in the days before the outage
Fresh scan at normal load through viewing ports, doors closed, to recheck the quarterly hot spots and mark each joint the de-energized crew must open and remake.
Preparation and access
Section de-energized, locked out and verified with a meter
Zero energy confirmed at all accessible conductors before any panel is opened.
Interior compartments opened and cleaned
Dust, debris and any signs of pest intrusion removed; compartments vacuumed, not blown, to avoid spreading dust.
Connections and insulation
Bus and cable connections inspected and torqued
No discoloration or pitting at lugs and bus joints; torque verified or connection resistance measured per the testing standard or manufacturer, re-torqued only where found loose.
Insulation resistance tested on major components
Megohm readings recorded per component and compared against baseline or manufacturer minimums.
Insulating barriers and supports checked for tracking or cracking
No carbon tracking, chalking or physical damage on standoffs and barriers.
Contact resistance tested on bus joints and breaker poles
Micro-ohm readings recorded by the testing firm and compared across phases and with the last outage, with any high joint cleaned and remade.
Breaker exercise
Each breaker manually exercised open and closed
Mechanism operates smoothly without binding, trip and close indicators function correctly.
Protective relay settings and trip units reviewed
Settings match the current coordination study, not the panel's out-of-date factory defaults.
Breakers trip-tested by the testing firm
Trip times at each test point recorded by primary or secondary injection and compared with the maker's time-current curve and the study settings.
Protective relays tested where the gear uses them
Relay pickup and timing tested by injection and the trip output shown to open its breaker, with results compared with the coordination study.
No photo
Return to service
Compartments cleared and covers bolted back before re-energizing
No tools, grounds or debris left inside, barriers and covers bolted back, and each lock and tag removed by the person who hung it.
Gear re-energized to the switching plan and voltage confirmed
Sections re-energized in the agreed order, metering shows normal voltage on each phase, loads restored and the owner told the outage is closed.
Testing firm's report received and filed with the owner
Report lists every test result against the last outage, open deficiencies and settings as found, and goes to the owner for acceptance.
No photo
What usually sends this back
The failures are almost always the evidence, not the work
- Outage window cut short and only half the sections opened and inspected as planned.
- Discoloration on a bus connection noted but not re-torqued or measured for resistance.
- Breakers never actually exercised open-closed, just visually inspected sitting in one position.
Verified against
Common questions
6 answers
- What does this main electrical switchgear / service section annual checklist cover?
- 15 items across 5 sections, covering outage planning, preparation and access, connections and insulation, breaker exercise, and more. Each item spells out what the person walking the job is actually looking for, not just a box to tick.
- Who should run this inspection?
- A qualified electrical testing crew, coordinated with facilities for the required outage.
- When in the schedule should this walk happen?
- Once a year, scheduled well ahead of time since it requires de-energizing the section and an approved outage window.
- Why do these items ask for a photo?
- 12 of the 15 items call for photo evidence, 16 photos in all. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.
- What most often fails a main electrical switchgear / service section annual inspection?
- Outage window cut short and only half the sections opened and inspected as planned. Discoloration on a bus connection noted but not re-torqued or measured for resistance. Breakers never actually exercised open-closed, just visually inspected sitting in one position.
- Can I use this checklist in RTI?
- Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper evident audit trail.
Run it with the Photo Gate
A checklist nobody can submit half-finished
Load this list into RTI, stick a QR tag on the area it covers, and the submit button stays locked until every mandatory item is answered and the 16 required photos exist. Approved walks roll into a branded turnover package with a tamper evident record behind every line.
See all 508 checklists · 6741 items and 5984 photo requirements in total.