Thermographic Inspections

This domain measures one thing: whether infrared is a program or an occurrence. Scans happen at most facilities. Programs exist at far fewer.

Thermography carries 13 points in the REALTIMEais 70B READINESS SCORE for a specific reason: it is one of the very few program elements that generates its own evidence. A thermal image is timestamped, comparative, and interpretable by someone who was not standing there. Try defending an interval decision with “the electrician said it looked fine.” Now try it with a scan history showing a 6°C rise across three surveys. One is an opinion. The other is a trend line with a date on it.

The standard is direct. Section 7.4 of NFPA 70B (2026): infrared thermography shall be used to verify temperature differences — delta-T between similar components under similar load, and against ambient. Shall. The Chapter 9 condition tables put a clock on it: an infrared survey every twelve months for Condition 1 and 2 equipment, every six months for Condition 3. Nearly every equipment class in the book carries that line. And the 2026 edition now explicitly recognizes continuous thermal monitoring — permanently installed sensors, connected cameras — as a valid input to condition assessment. The scan interval question is starting to become a monitoring question.

Six criteria, each scored and weighted on its own:

1. IR surveys are performed on a defined interval — written and tied to condition, not “when the contractor calls us.”
2. Survey scope covers the equipment the program identifies. The scan list comes from your asset list, not from whatever panels happened to be open that day.
3. Severity criteria are defined and applied consistently. What delta-T is a note, what’s a work order, what stops the walk and gets a phone call — written down, applied the same way by every thermographer.
4. Findings generate tracked corrective action. An exception that doesn’t become a work order is a hazard you photographed and filed.
5. Thermal data is retained and comparable across surveys. Same equipment, same views, images kept where the next thermographer can pull last year’s. The trend is the evidence; a single image is just a moment.
6. The thermographer’s qualification is documented. The image is only as credible as the person interpreting it.

What good looks like: scans happen on a schedule, against a defined equipment list, using consistent severity thresholds. Findings become work orders automatically, not eventually. Images are retained where the next thermographer can compare against them, so survey three can say something survey one never could: this connection is getting worse at a measurable rate. That is the moment a scan becomes evidence — of a developing failure, and just as valuable, of a defensible program.

What this domain is worth

Thermography has the cleanest ROI in the framework. The cost of the gap: a hot connection nobody closed out becomes the outage — or the fire. Scan labor wasted when exceptions sit in a folder instead of a work order; you paid for the scan and got nothing for it. And insurers increasingly ask for IR evidence — no program, no credit on the premium. The return: the cheapest detection there is for the most common electrical failure mode, a loosening connection. A caught connection is a work order on your schedule; a missed one is an outage on theirs. Trend data earns longer intervals on healthy gear. And continuous monitoring — installed sensors, connected cameras — cuts survey labor and catches what a yearly scan misses. One caught connection pays for the survey program. Everything after that is margin.

The failure mode that scores near zero surprises people, because it can involve a lot of scanning: an IR program with no defined interval, no severity criteria, and no follow-up tracking, regardless of how many scans were taken. Volume is not a program. I reviewed a facility that was proud of its infrared effort — hundreds of images a year, nice camera, enthusiastic technician. The images lived on that technician’s laptop, organized by whatever date the camera assigned. No severity thresholds: “we flag anything that looks hot.” No connection to the work order system. When we sampled the prior year’s exceptions, about a third had never been corrected — not deferred, not evaluated, just still sitting in a folder. If that facility ever ends up in litigation, those images are worse than nothing: they are proof the facility saw the problem and has no record of acting on it. An undocumented scan isn’t neutral. It’s discoverable.

Three questions to ask your program this month:

• Where do last year’s thermal images actually live — and can we compare them to this year’s? If the answer involves somebody’s laptop, that’s the finding.
• What temperature rise triggers action here — and is that written down? A threshold in someone’s head is not a threshold.
• Did every exception from the last survey generate a work order? Sample five and check. The gap between exceptions and work orders is your exposure.

Send one to your maintenance lead today. The full REALTIMEais 70B READINESS SCORE assessment is free at REALTIMEais.com/readiness, scored in REALTIMEais, The Electrical Intelligence System™ — where camera images flow straight into the asset record.

LinkedIn teaser

Hundreds of thermal images a year. Nice camera. Enthusiastic technician.

All of it on his laptop, filed by whatever date the camera assigned. No written severity threshold — “we flag anything that looks hot.” No link to the work order system.

We sampled last year’s exceptions. About a third had never been corrected. Not deferred. Not evaluated. Just sitting in a folder.

In litigation, those images are worse than nothing: proof you saw the problem and have no record of acting on it. An undocumented scan isn’t neutral. It’s discoverable.

NFPA 70B Sec. 7.4 says infrared thermography shall be used. Volume is not a program.

The money: a loosening connection is the most common electrical failure mode and the cheapest to detect. Caught, it’s a work order on your schedule. Missed, it’s an outage on theirs — and insurers increasingly price whether you can show the scan. One caught connection pays for the survey program. Everything after that is margin.

Part 4 of the REALTIMEais 70B READINESS SCORE series: Thermographic Inspections — 13% of your score.

One question for today: what temperature rise triggers action at your facility — and is it written down?

Free assessment: REALTIMEais.com/readiness — The Electrical Intelligence System™

#NFPA70B #Thermography #InfraredInspection #REALTIMEais