Free checklist
Busway quarterly maintenance checklist
A quarterly busway (bus duct) round is short on purpose: it catches the wear items that fail between annual services. This checklist is sized for a tech with a phone. Every item says what to look at and the photo that proves the round happened. Work is commonly verified against NFPA 70B, NETA maintenance testing standards. 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.
Before the walk
Walk kept to closed covers with PPE from the risk assessment
No joint cover or plug-in door opened, joints read from the floor or a lift, or through IR windows where fitted, and PPE taken from the site's arc-flash risk assessment.
No photoFeeder and plug-in labels legible along the run
Run marked with its feeder name and source at the tap box and on each floor, warning labels legible, and any plug-in unit labeled with what it feeds.
Joints and heat
Bolted joints scanned along the run
Thermography or a non-contact scan at each accessible joint and elbow, no single bolted connection reading hot against the adjacent housing.
Housing checked for discoloration and heat marks
No paint discoloration, blistering or heat staining at joint covers, no burnt smell along the run.
Joint covers in place with every screw fitted
Each joint cover present and fastened, none bent, loose or left off after past work, and no gap showing the joint stack behind it.
Support and plug-ins
Hangers, supports and alignment checked
Hangers tight and evenly spaced, run straight without sag or twist at joints, no support carrying a pipe or other load it wasn't meant to.
Riser supports checked at each floor where the run rises
Vertical sections held by their floor supports or spring hangers, no sag or settlement at the floor line, springs neither bottomed out nor unloaded.
No photoPlug-in units seated and latched
Each plug-in fully stabbed, latched and interlocked, no unit hanging crooked off the run or leaking heat at the stab.
No photoPlug-in disconnect handles and ratings checked
Where the run has plug-ins, each handle's position matches its unit's on or off state and clears the housing, padlock provision usable, and the rating label readable from the floor.
No photo
Moisture and grounding
Run checked for moisture and condensation entry
No dripping pipe, roof penetration or condensation landing on the housing, no water staining at joints where a run passes below wet areas.
Drip shields checked where sprinkler piping runs above
Drip hood or shield in place and unbent under sprinkler mains and branch lines, and no new piping or heads added over the run without protection.
No photoGround continuity connections intact
Grounding straps and bonding jumpers across joints landed and unbroken, no corrosion at the ground path along the run.
Penetrations and follow-up
Rated floor and wall penetrations observed for sealing
Firestop around the housing at each rated floor or wall seen intact, gaps or disturbed seals reported to the owner for the firestop contractor, not patched here.
No photoWarm joints and defects reported by floor and location
Each warm joint, missing cover or seal defect sent to the owner with its floor, joint location and image, so the annual outage opens it first.
No photo
What usually sends this back
The failures are almost always the evidence, not the work
- A joint running warm at a ceiling elbow that never gets scanned because the run is twenty feet up and out of easy reach.
- A plug-in unit stabbed on crooked and left, so the stabs arc quietly until the joint discolors.
- Condensation dripping onto the housing from a pipe or roof penetration above the run, unnoticed until it tracks across a joint.
Verified against
Common questions
6 answers
- What does this busway quarterly checklist cover?
- 14 items across 5 sections, covering before the walk, joints and heat, support and plug-ins, moisture and grounding, 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?
- The facility electrician walking the run on the quarterly round, scanning and looking with the busway energized.
- When in the schedule should this walk happen?
- Every quarter, walked under load so the joint scan catches a warm bolted connection while current is actually flowing.
- Why do these items ask for a photo?
- 7 of the 14 items call for photo evidence, 8 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 busway quarterly inspection?
- A joint running warm at a ceiling elbow that never gets scanned because the run is twenty feet up and out of easy reach. A plug-in unit stabbed on crooked and left, so the stabs arc quietly until the joint discolors. Condensation dripping onto the housing from a pipe or roof penetration above the run, unnoticed until it tracks across a joint.
- 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 8 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.