Thermal Imaging & Fault Detection


See Problems Before They Become Failures

Electrical systems often show signs of trouble long before they fail—but only if you know where to look. At Legacy Industries, we use advanced infrared thermal imaging to detect hot spots, overloads, loose terminations, and hidden faults in your electrical infrastructure. Our certified technicians interpret thermal data to prevent fires, breakdowns, and costly downtime across Upstate South CarolinaNorth Georgia, and Western North Carolina.


What Is Thermal Imaging?

Thermal imaging (also called infrared scanning) captures invisible heat signatures emitted by electrical equipment. Abnormal heat often signals resistance, overload, or poor connections—all early warnings of failure or fire risk.

Using industry-standard IR cameras, Legacy Industries inspects panels, switchgear, transformers, motors, and distribution systems without interrupting operations.

Benefits:

  • Early fault detection without shutdowns
  • Lower maintenance and repair costs
  • Improved equipment reliability and uptime
  • Enhanced safety and fire prevention
  • Documentation for insurance and compliance

Key Components We Inspect

ComponentWhat We Look ForWhy It Matters
Main Switchboards & PanelsOverheating breakers, lugs, or bus barsPrevents arcing and equipment failure
Subpanels & DisconnectsLoose terminations, load imbalanceReduces fire and outage risk
TransformersCore heating, winding imbalanceIdentifies early insulation failure
Motors & VFDsBearing or winding hot spotsExtends lifespan and prevents downtime
Control CabinetsOverloaded relays or wiringImproves control system reliability
Lighting & Distribution CircuitsExcessive heat at connectionsEnsures consistent performance and efficiency

How Thermal Imaging Works

  1. Setup & CalibrationOur technician configures a high-resolution infrared camera, adjusting emissivity and range for accurate readings.
  2. Scanning Under LoadWe scan energized systems operating at normal capacity to capture real-world thermal data.
  3. Image CaptureEach target is photographed in visible and thermal spectrum, identifying temperature differentials.
  4. Analysis & InterpretationWe compare results against ambient reference points, load, and manufacturer standards.
  5. Reporting & RecommendationsYou receive a detailed report showing affected components, temperature deltas, severity rankings, and corrective actions.

Applications of Infrared Thermography

Residential

  • Detect overheating breakers or faulty outlets
  • Evaluate panelboard terminations and neutral bars
  • Identify overloaded circuits before tripping
  • Locate energy loss points for better efficiency

Commercial

  • Inspect office, retail, and medical electrical gear during operation
  • Prevent failures in lighting, HVAC, and refrigeration circuits
  • Support insurance inspections and safety audits
  • Verify performance after electrical upgrades or repairs

Industrial

  • Analyze high-current feeders, MCCs, switchgear, and process equipment
  • Detect imbalance or phase loss in motors and drives
  • Validate connections after maintenance shutdowns
  • Support OSHA/NFPA compliance for predictive maintenance programs

What We Identify with Thermal Imaging

IssueThermal SignatureResult if Uncorrected
Loose terminationLocalized hot spotArcing, conductor damage, potential fire
Overloaded circuitUniform overheatingNuisance trips, insulation failure
Imbalanced phasesUneven heating on legsMotor vibration, reduced efficiency
Faulty breakerExcessive heat on poleBreaker failure or trip under load
Failing motor bearingCircular hot spot on housingSeizure, equipment shutdown
Transformer defectDifferential heat in coilsPower loss, insulation breakdown

Advantages of a Thermal Imaging Program

Predictive Maintenance: Identify problems early to schedule repairs during planned downtime.

Safety: Reduce electrical fire risks by detecting overheating components.

Energy Efficiency: Correct load imbalance and poor connections that waste energy.

Documentation: Provide proof of maintenance for insurance and facility audits.

Compliance: Supports NFPA 70B and OSHA 1910 recommendations for electrical preventive maintenance.


Detailed Deliverables

Each thermal imaging report includes:

  • Annotated thermal and visible-light images
  • Component descriptions and temperature deltas
  • Severity codes (Critical, Serious, Monitor)
  • Recommended corrective actions
  • Maintenance and re-inspection intervals

Reports are delivered digitally with clear visuals suitable for facility records, insurance, or audits.


When to Schedule a Thermal Scan

  • Annually for residential systems
  • Quarterly or semiannually for commercial buildings
  • Before and after major maintenance or upgrades
  • After storm events or unexplained tripping incidents
  • When adding new loads or electrical equipment

Complementary Services

  • Torque verification and re-termination of flagged connections
  • Breaker and panel maintenance for overheating prevention
  • Load balancing and power quality analysis
  • Integration into preventive maintenance plans
  • Surge protection evaluation

Safety & Compliance

Our technicians operate under strict NFPA 70E safety protocols, maintaining safe distances, PPE use, and energized work permits where required. Every camera is calibrated and traceable to ISO standards for accuracy.


Industries Served

  • Manufacturing and processing plants
  • Healthcare and laboratory facilities
  • Distribution centers and logistics warehouses
  • Education and municipal infrastructure
  • Commercial offices and retail centers
  • Residential and multi-unit housing complexes

Service Areas

Thermal imaging and fault detection available across:

  • Greenville
  • Spartanburg
  • Anderson
  • Simpsonville
  • Laurens
  • Gaffney
  • Western North Carolina
  • North Georgia

We provide convenient scheduling to minimize disruption and align with facility operating hours.


Frequently Asked Questions

Does thermal imaging require shutdowns?

No, it’s a non-contact, non-invasive method done on energized systems during normal operation.

How accurate is thermal imaging?

Our cameras detect temperature changes as small as 0.1°C, offering precise fault localization.

Do you provide repair services for detected issues?

Yes. We correct identified faults promptly, ensuring the system returns to safe and reliable operation.

Is infrared scanning required by insurance?

Many insurers now require annual IR scans for commercial and industrial facilities as part of risk reduction.

Can you include thermal imaging in maintenance plans?

Absolutely—it’s a standard component in our preventive maintenance programs.


Protect Your Property and Operations

Electrical faults rarely happen suddenly—they develop slowly. Legacy Industries helps you see them before they cost you. Our certified infrared thermographers deliver precise imaging, actionable reports, and repairs that keep your systems safe, efficient, and compliant.

Phone: (864) 431-4670

Email: tyler.abbott@legacyind.net

Service Region: Upstate South Carolina and surrounding areas


With decades of experience, Legacy Industries delivers trusted industrial electrical and compressed air services across Upstate SC, North Georgia, and Western NC. From full-scale installations to preventative maintenance and 24/7 emergency repairs, our licensed team keeps plants, warehouses, and commercial facilities running at peak performance.

(864) 431-4670

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tyler.abbott@legacyind.net

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