Certified Thermal Electrician™
Thermal Imaging Toolbox
ΔT & Severity
3-Phase
Emissivity
Use Cases
Ampacity & VD
CTE Report
Temperature Differential & Severity Calculator
Use ΔT together with load %, NFPA 70B guidance, equipment limits, and your company criteria.
3-Phase Temperature Imbalance
Compare temperature imbalance with measured current imbalance for a complete picture.
Emissivity Helper
Emissivity values are approximate. For shiny/plated hardware, favor tape or labels over direct metal readings.
Residential vs. Commercial Use Cases
Thermography isn’t just “looking for hot spots” — Certified Thermal Electrician™ shows electricians how to turn scans into real services in homes and facilities.
🏠 Residential Services
- Scan main and subpanels for loose lugs, overloaded breakers, and neutral issues.
- Evaluate EV chargers, heat pumps, tankless water heaters, and other high-demand loads.
- Document “before & after” conditions for service upgrades and panel replacements.
- Offer annual thermal checkups packaged with electrical safety inspections.
🏢 Commercial & Industrial Services
- Support NFPA 70B programs by scanning switchgear, panelboards, MCCs, and busways under load.
- Monitor motors, VFDs, transformers, and control panels as part of predictive maintenance.
- Protect data centers, telecom rooms, and IT spaces from thermal-related failures.
- Create recurring contracts for quarterly or annual thermal surveys with documented reports.
How CTE Helps Sell the Work
The Certified Thermal Electrician™ program trains electricians to interpret images, apply NEC® and NFPA 70B requirements, and communicate findings in language that homeowners, facility managers, and insurers understand — turning thermography into a repeatable, billable service line.
The Certified Thermal Electrician™ program trains electricians to interpret images, apply NEC® and NFPA 70B requirements, and communicate findings in language that homeowners, facility managers, and insurers understand — turning thermography into a repeatable, billable service line.
Ampacity & Voltage Drop Helper
Uses NEC 2023 concepts for ampacity adjustment/correction (310.15, 310.16) and standard voltage drop formulas consistent with NEC informational notes (e.g., 210.19(A)(1), 215.2(A)(1)).
Ampacity Adjustment (NEC Method)
From NEC 310.16 or manufacturer table at the chosen temperature rating.
Used for a typical adjustment factor (310.15 concept).
Optional – from ambient correction table. Leave blank for 1.00.
Voltage Drop Estimate
Use design load current, not just breaker rating.
One-way conductor length. Calculator handles round-trip.
Uses typical DC resistance values for estimation.
Optional – enter NEC table or manufacturer value for more precise calcs.
Ampacity: method follows NEC 2023 concepts for adjustment and correction (310.15, 310.16),
but you must use the actual Code tables/manufacturer data. Voltage drop: formulas align with
NEC 2023 informational notes recommending ~3% max on branch circuits and ~5% total for feeder
+ branch, but those limits are informational unless adopted by design/spec.
Electrical Thermal Imaging Report
Electrical Thermal Imaging Report
Certified Thermal Electrician™
Client & Site Information
Technician & Equipment
Environmental & Load Conditions
Inspection Summary
Detailed Findings
Use one finding section for each notable condition (anomaly, hot connection, overload, imbalance, etc.).
Authorization & Signatures
Certified Thermal Electrician Signature / Date
Client Representative Signature / Date
Finding