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NFPA 70B

Meet NFPA 70B with the team you already have.

NFPA 70B now requires infrared inspections of your electrical equipment at least once a year. ThermalSync lets your own electricians run them under normal load, on your schedule, and keeps every reading, finding, and fix in an audit-ready record.

  • Inspect under normal load
  • Intervals by asset condition
  • Audit-ready records
Asset coverage
100%
Overdue
0
6-month cycle
3

Illustration: a thermal image of a motor control center taken under 82 percent load, with phase B running 41°F hotter than phase A. Below it, example program status: 100 percent asset coverage, no overdue assets, and 3 assets on a six-month inspection cycle.

01 · What changed

From recommended practice to requirement.

The 2023 edition made NFPA 70B a standard. Facilities now need a documented electrical maintenance program, and infrared thermography is a required part of it.

ThermalSync runs the thermography part of that program, and gives your EMP coordinator the record to prove it.

A planning summary of the thermography requirements in NFPA 70B (2023). Always check the current edition and your authority having jurisdiction.

Inspect electrical equipment at least every 12 months
Set a frequency for every asset. Anything due soon or overdue is flagged before it slips.
Every 6 months for Condition 3 equipment
Tighten the interval on any asset with a history of urgent findings.
Inspect under normal load, and record the load
Your team inspects while equipment runs, and the load is kept with every inspection.
Document temperature differences against a reference
Assisted fault finding compares each point to similar components and records the ΔT.
Keep records your auditor can review
Every inspected component on record, nominal or not, with findings, fixes, and Inspection Reports in one trail.
02 · Under load

One contractor day is not a program.

NFPA 70B asks for inspections under normal load. A single survey day only catches what happens to be running. Your team inspects each line while it runs, spread across the week and the year.

  • Every line under load. Inspect each line while it runs, so every reading counts.
  • Rounds that fit your shifts. One asset or a whole line, whenever it suits the crew.
  • Repairs in planned stops. Book the fix into a changeover you already have.
Production schedule · Week 14
Under load
212/212
Lines missed
0
Lines stopped
0

Illustration: a week of production on four lines. A contractor survey on Wednesday's day shift misses Line 2, which is in a changeover and not under load. Your team inspects every line while it runs across the week, covering all 212 assets without stopping a line. A round on Tuesday flags an exception on Line 3, and the repair is booked into Sunday's planned stop.

03 · Every asset, every year

Nothing slips past its interval.

Set a frequency for every asset: annual for most, every six months for Condition 3. ThermalSync tracks what is done, what is due soon, and what is overdue, across every facility.

Efficient
Your electricians run the whole inspection. No second crew on standby.
Convenient
Inspect under normal load, spread across the year.
Complete
Images, loads, findings, and fixes, ready for any audit.
Asset coverage · 2026 0% 0 of 212 assets
04 · Proof of condition

Proof it was fine, not just what was wrong.

Contractor reports usually list the anomalies and little else. ThermalSync keeps a thermal image and reading for every component your team inspects, including everything running normally. If something fails later, you can show it was inspected and nominal on the day.

Plant 2 · Annual inspection · Sep 14, 2026 J. Ruiz · Load 82%
Exceptions-only report
1 of 6 on record
ThermalSync
6 of 6 on record
If one fails in March
Proof it was nominal in September

Illustration: one annual inspection on September 14, 2026 covering six components. Five are nominal and one, MCC-3 bucket 4B, is an exception at 189.2°F. An exceptions-only report would keep one of the six on record; ThermalSync keeps all six, so if a component fails months later there is proof it was inspected and nominal.

05 · The record

Ready when the auditor asks.

Every image, load, finding, and fix is already documented. When your insurer, auditor, or EMP coordinator wants it on paper, generate an Inspection Report in one click.

  • Every image, measurement, and exception
  • Severity criteria and inspector notes
  • Numbered, signed off, and audit-ready
Benefits

70B thermography, handled.

Keep the budget in-house

Replace the annual contractor survey with inspections your own team runs, and keep the know-how in your building.

Intervals by condition

Annual, six-month, or custom frequencies for each asset, so Condition 3 equipment gets the attention 70B asks for.

Temperature differences documented

Assisted fault finding compares each point to similar components and flags exceptions by severity, so every ΔT is on record.

Findings become work orders

Send exceptions to your CMMS with the thermal images attached, then re-inspect to prove the fix worked.

Program health at a glance

Coverage, due-soon, and overdue assets in one view, so your EMP coordinator never has to chase status.

One standard, every site

Run the same inspection program across every facility in your organization from a single account.

Questions

What facilities ask about 70B.

Something else on your mind? Browse the FAQ

Is NFPA 70B mandatory now?

The 2023 edition changed NFPA 70B from a recommended practice to a standard. How it applies at your site depends on your authority having jurisdiction, your insurer, and your own safety policies, and many insurers and corporate programs already expect it.

How often does NFPA 70B require infrared inspections?

At least every 12 months for electrical equipment, and at least every 6 months for equipment in Condition 3. ThermalSync lets you set the frequency for each asset and flags anything due soon or overdue.

Can our own electricians do the inspections?

Yes. Once setup is done, any experienced team member can inspect, and assisted fault finding helps surface exceptions. Work on energized equipment follows your electrical safety program, and we recommend thermography training so your team knows what to look for.

Does ThermalSync cover our whole electrical maintenance program?

No, and it doesn’t try to. ThermalSync runs the thermography part of your program: scheduling, inspections, findings, work orders, and records. Other 70B tasks, like cleaning, torque checks, and insulation testing, stay with the maintenance tools you already use.

Will it work with the camera we already have?

Most likely. ThermalSync works with radiometric images from many popular thermal cameras, and your camera doesn’t need to be online. Ask us about yours.

What will an auditor see?

Audit-ready Inspection Reports and a complete activity trail: every image, measurement, exception, work order, and re-inspection, tied to the asset it came from. That includes the components that were running normally, so you can show what was inspected and when, not just what was wrong.

Your turn

Make your next 70B inspection your own.

Book a 30-minute demo. We will walk through your equipment, your inspection intervals, and exactly what your auditor will see.

or email support@thermalsync.com