Fire Prevention Strategies

Fire Prevention Strategies Detection and Thermal Imaging

Effective fire prevention strategies focus on identifying, reducing and managing fire risks before they become incidents. Through proactive measures, planning and reliable detection technologies, organisations can create safer environments and minimise the likelihood of fire outbreaks. Key elements include hazard identification, risk reduction and emergency planning.

Hazard Identification and Reduction

According to Brandon Scholtz, Risk Consultant at Aon South Africa, the first step in preventing fires is recognising potential hazards.

“This can be done through visual inspections of the workplace under normal operating conditions as well as under irregular conditions such as hot work, for example. Observers should pay attention to how employees use equipment, whether safe practices are followed, and whether any unsafe behaviours or conditions could lead to fire risks.”

He adds, “It’s equally important that equipment is clearly labelled with hazard warnings and that employees receive proper training and hold the required qualifications before operating specialised machinery. Regular safety checks built into work processes help prevent fire risks and greatly reduce the likelihood of fire-related incidents.”

Once hazards are identified, the next step is deciding how to manage them. There are four common approaches: tolerate, treat, transfer and terminate. Treating or terminating risks often involves additional control measures, such as installing sprinklers in areas containing combustible materials. Proper stacking practices are equally important, as materials stored too close to sprinklers can obstruct water distribution and prevent systems from working effectively.

Fire Detection

“An essential aspect of risk reduction is fire detection,” explains Brandon. “Early detection enables rapid response by internal teams and local fire brigades, helping to restrict the spread and severity of fire, limiting damage, protecting assets and ensuring the safety of people on the ground.”

Fire detection systems identify the presence of heat, smoke or flames using different technologies, including:

Ionization Smoke Detectors[1] – Trigger an alarm when smoke disrupts an electrical current between charged plates.Photoelectric Smoke Alarms[2] – Use a light beam that reflects onto a sensor when smoke is present, ideal for smouldering fires.VESDA Systems (Very Early Smoke Detection Apparatus) – Continuously sample air for smoke particles.Heat Detectors[3] – Trigger when a temperature threshold is reached.Flame Detectors[4] – Detect optical radiation from flames, using Ultraviolet (UV) or Infrared (IR) sensors, or advanced combinations such as UV/IR and Multi-Spectrum Infrared (MSIR) for greater accuracy and fewer false alarms.

“Modern detection systems can integrate with building management systems to automatically close fire doors, activate shutters or shut down equipment that could worsen a fire,” says Brandon. “Selecting the right detector depends on the environment, materials and operational risks involved.”

Thermal Imaging

Thermal imaging uses infrared technology to detect heat patterns and identify potential problems before they lead to fire. It converts heat into visible images, highlighting hot spots or faulty electrical connections.

“Routine thermal scanning - typically done annually - helps identify overheating in electrical and mechanical systems, this can include: pumps, motors, bearings, conveyers, distribution boards and the like. More frequent inspections may be necessary when new installations or additional electrical loads are introduced,” says Brandon.

When using thermal cameras:

Ensure calibration and operator training for accurate interpretation.Consider factors such as resolution, thermal sensitivity, field of view and functionality.Higher resolution provides clearer, more detailed images.Greater sensitivity allows detection of smaller temperature differences.A wide field of view is ideal for large areas; a narrow one for detailed inspections.Additional features like recording capabilities enhance functionality.

“Thermal imaging offers significant advantages in fire prevention as it allows you to detect electrical faults and overheating in both electrical and mechanical systems that reduces fire risks and equipment breakdown. It also greatly aids in lowering maintenance costs and unplanned downtime that ultimately extends the lifespan of equipment and improves safety performance,” Brandon explains.

Emergency Planning

Emergency planning outlines the actions an organisation will take in the event of a fire. A well-developed plan helps minimise injuries, protect property and maintain business continuity.

Effective plans should:

Define roles and responsibilities for employees.Provide step-by-step response procedures.Include communication protocols for notifying emergency responders.

Regular training and drills ensure that all employees understand procedures and can respond quickly and calmly.

Brandon says that an integrated approach to fire prevention, is key.

“Fire prevention is most effective when multiple systems work together. Sprinklers, gaseous fire suppression systems, fire doors and separations all complement detection and thermal imaging solutions. By integrating these measures, organisations can ensure a fast, coordinated response that minimises damage, protects lives and sustains operations,” Brandon concludes.

Disclaimer

The contents hereof should not be construed as legal advice on any matter. You should not act or refrain from acting on the basis of any content included in this communication without seeking professional legal counsel. This communication does not constitute or create a lawyer-client relationship between us.

About Aon

Aon plc (NYSE: AON) exists to shape decisions for the better — to protect and enrich the lives of people around the world. Our colleagues provide our clients in over 120 countries and sovereignties with advice and solutions that give them the clarity and confidence to make better decisions to protect and grow their businesses.

Follow Aon on LinkedIn, Twitter, Facebook and Instagram. Stay up-to-date by visiting the Aon Newsroom and sign up for News Alerts here.

Media Contact

Deidre BeylisThis email address is being protected from spambots. You need JavaScript enabled to view it.+27 84 426 0410

[1] https://www.nfpa.org/education-and-research/home-fire-safety/smoke-alarms[2] https://www.nfpa.org/education-and-research/home-fire-safety/smoke-alarms[3] https://www.sciencedirect.com/topics/engineering/heat-detector[4] https://resources.impactfireservices.com/flame-detectors