NFPA 70B and Thermal Inspections: The Key to Keeping Your Insurance Policy Intact
- Kevin Daly
- Nov 18, 2024
- 3 min read

"D’oh! Guess skipping the thermal inspection was my way of saying, ‘Burn, baby, burn!’"
In today’s fast-paced and highly competitive business environment, maintaining a safe and reliable electrical system is more than just good practice—it’s a necessity. With the introduction of NFPA 70B, the National Fire Protection Association's standard for electrical equipment maintenance, annual thermal inspections are now at the forefront of predictive maintenance (PdM). These inspections not only ensure compliance with insurance requirements but also provide a host of benefits that far outweigh their costs.
Let’s dive into why thermal inspections are essential for every business owner and property manager—and how they can save you money, enhance safety, and improve operational reliability.
What Are Thermal Inspections?
Thermal inspections, also known as infrared thermographic surveys, use specialized cameras to detect heat anomalies in electrical systems. These “hot spots” are often invisible to the naked eye but serve as warning signs of potential issues like:
Loose connections
Overloaded circuits
Failing components
Imbalanced loads
By identifying these problems early, thermal inspections allow for proactive repairs before they escalate into costly breakdowns, downtime, or catastrophic failures like electrical fires.
Why NFPA 70B Made Thermal Inspections a Standard
NFPA 70B emphasizes the importance of regular maintenance for electrical systems to ensure safety, prevent equipment failure, and reduce fire risks. Thermal imaging is a cornerstone of this standard because it:
Identifies issues before they become failures: Early detection through infrared technology reduces the risk of system breakdowns.
Improves efficiency: Maintaining well-functioning equipment lowers energy waste, reducing your overall costs.
Ensures safety: Preventing electrical fires and accidents protects your employees and property.
Three Major Benefits of Thermal Inspections
1. Enhanced Safety
Electrical fires are a leading cause of property damage and business disruption. Thermal inspections significantly reduce the likelihood of such disasters by catching potential problems early. A single missed connection or overheating component can spiral into a fire that destroys property, disrupts operations, and even risks lives. Regular inspections create a safer environment for your employees, customers, and assets.
2. Cost Savings
Thermal inspections may come with an upfront cost, but the return on investment is undeniable. Here’s why:
Lower Repair Costs: Addressing minor issues like loose connections or overheating components is far less expensive than replacing entire systems or dealing with the aftermath of a fire.
Insurance Benefits: Many insurers view thermal inspections as a proactive risk management tool, potentially reducing your premiums or ensuring your policy renewal without complications.
Avoid Downtime: Preventing unexpected failures keeps your business running smoothly, saving you from lost productivity and revenue.
Predictive maintenance, as highlighted in NFPA 70B, has consistently proven to be a cost-effective approach. Fixing problems before they fail always costs less than dealing with the fallout after the fact.
3. Improved Reliability
Downtime is the enemy of every business. Whether you run a manufacturing plant, a retail store, or an office building, electrical failures disrupt operations and hurt your bottom line. Thermal inspections help ensure your electrical systems operate at peak performance, delivering consistent, reliable power to keep your business running smoothly.
The Process: What to Expect During a Thermal Inspection
A certified thermographer will conduct the inspection using state-of-the-art infrared imaging equipment. The process includes:
Surveying Critical Systems: Switchgear, transformers, motors, circuit breakers, panelboards, and other key electrical components.
Identifying Anomalies: Thermal images highlight hot spots or unusual temperature patterns.
Providing a Detailed Report: You’ll receive a comprehensive report with images, temperature readings, and actionable recommendations for repairs or adjustments.
With minimal disruption to your operations, these inspections are quick, non-invasive, and highly effective.
Making Thermal Inspections a Priority
Think of thermal inspections as an investment in your business. By integrating them into your annual maintenance routine, you’ll:
Prevent costly failures
Enhance safety for everyone on your property
Gain peace of mind knowing your electrical system is reliable and compliant
Insurance companies recognize the value of predictive maintenance and are increasingly aligning with NFPA 70B’s recommendations. Ensuring your property undergoes annual thermal inspections not only meets these requirements but also solidifies your reputation as a responsible and forward-thinking business owner.
The Bottom Line
Thermal inspections are not just a compliance box to check—they are a proven strategy for saving money, improving reliability, and protecting lives. While there may be a cost associated with these inspections, the savings generated through prevented failures, lower insurance risks, and uninterrupted operations make them an essential part of any business’s maintenance plan.
By embracing NFPA 70B and prioritizing annual thermal inspections, you are taking proactive steps toward safeguarding your property, ensuring your insurance policy remains intact, and securing the future of your business.
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