Tag Archive for: special hazards

Special Hazards Require Special Solutions

Remember that when you try to fight fire with fire, the Fire Department uses water. This is why VFS Fire and Security highly recommends implementing special solutions into your fire safety plan to tackle special hazards.

What is a special hazard? 

NFPA Code 470 highlights hazardous materials standards for responders. A special hazard is anything from a building, material, or piece of equipment that can cause a fire in an abnormal way.  

As mentioned above, a special hazard isn’t simply an area, it can be a building, area, room, or a piece of equipment. From a fire protection perspective, certain industries bring about additional challenges in the fire safety realm. 

Special hazards are generally found in places like data centers, telecommunications, power generation, manufacturing and testing facilities, machinery spaces, and healthcare facilities. A typical fire alarm and sprinkler system simply won’t cut it for these types of buildings. 

Oil Fire

An oil fire is an example of a special hazard that requires a special solution. UCLA Health lists an oil fire as “Class B.” This includes, “flammable liquids such as alcohol, ether, oil, gasoline, and grease, which are best extinguished by smothering.” 

Oil fires often start in commercial kitchens, areas where spontaneous combustion can occur, or areas where high-temperature work is done. Learn more about the hazards of kitchens in our blog, “Kitchens: More than a place to steal your coworker’s lunch.” 

Because kitchens are such a hot spot for hazards, the NFPA requires many inspections and equipment guidelines to help prevent oil fires from occurring. NFPA Code 31 is listed as the Standard for the Installation of Oil-Burning Equipment, which provides the starting point for special solutions.  

In the event of an oil fire, DO NOT use water. We repeat, DO NOT ATTEMPT TO USE WATER. Adding water to an oil fire will make the fire grow and become a greater danger. This is where the difference between fire suppression vs. fire sprinklers is important to understand. 

Fire Suppression Systems

Fire suppression systems are part of the magical formula for dealing with special hazards. Here are the various fire suppression systems VFS specializes in. 

Clean Agent 

Clean agent fire suppression, is a term used to describe the use of inert gases to extinguish a fire. These systems have three main components: 

  • Smoke Detector
  • Control Panel
  • Notification Devices

When a smoke detector is triggered, it sends a signal to the control panel which alerts the notification devices, activating the release devices to suppress the fire. 

Clean agent fire suppression systems are fast-acting and most effective at protecting sensitive equipment and environments because they are designed to suppress the fire in its incipient stage. They are electronically nonconducting and unlike water, they won’t ruin electronics or electrical components. 

They are most often found in server rooms, record and file repositories, and data centers that require an increased level of protection to prevent unnecessary and accidental discharge of systems.

The Details:

  • Inert gases: Nitrogen, argon, and carbon dioxide work together by lowering oxygen content in a room below the level that supports combustion, while still allowing a person to breathe keeping your environment and your personnel safe. 
  • Fluorocarbon-based extinguishers are described as “clean agents” as they do not leave any oily residues, particulates, or water damage and rapidly extinguish fires with a superb weight to effectiveness ratio. These extinguishing agents are also safe to use in occupied spaces and offer unique advantages in speed, performance, and safety. 

CO2 Systems

C02 is an effective method of extinguishing a wide range of flammable and combustible materials in both surface and deep-seated fires. Carbon dioxide is a colorless and odorless three-dimensional clean agent. It is typically harmless to equipment, materials, and property preventing excessive damage to equipment and your facility in the event of a discharge. 

There are high and low-pressure CO2 systems. High-pressure systems use individual storage cylinders ranging from 35 lbs to 120 lbs. Low-pressure C02 systems are ideal for non-occupied fire hazards requiring large amounts of extinguishing agents in a limited space. 

Wet Chemical 

Extinguishing methods of wet chemical suppression systems are specific to the type of cooking fire that may occur in a commercial kitchen. When triggered, the system immediately discharges a liquid that, when sprayed onto the fire, cools the flames almost instantaneously.

When this liquid comes into contact with oils and fats, it creates a foam that cools the affected area and prevents the spread and the potential of reignition. 

Dry Chemical

Dry chemical is a type of fire protection system that makes use of a dry chemical powder to extinguish a fire. Most dry chemical fire suppression systems use a large tank that is filled with dry chemical powder, which is then pressurized. 

If your business functions in one of the environments discussed above, ensuring that you have special solutions to protect against special hazards is imperative. 

 

So, how are your New Year’s resolutions coming along? It’s okay if you’ve already ditched the gym at this point— as long as fire safety is still a part of your New Year’s resolutions. Read more on our blog. 

VFS Fire & Security Services Sprinkler

The fire and life safety industry defines Special Hazards projects as those that require a fire protection system other than the traditional wet or dry system. This can include flammable or combustible solids or liquids such as:

  • Aerosols
  • Solvents
  • Corrosives
  • Pyroxylin Plastics
  • Gases
  • Cryogenic Fluids

From a fire protection standpoint, Special Hazards environments provide a unique set of challenges. These types of fires can spread rapidly in multiple directions even when there is a fire protection system in place. If you don’t have the appropriate fire protection system design and installation, a Special Hazards fire may not be controlled.

Special Hazards

At VFS, our experience in Special Hazards projects dates back to the beginning of our company over 20 years ago. We understand that these projects are unique in the fire protection industry and VFS is one of the few resources in the country qualified to handle these projects nationwide.

VFS takes the time to understand the type of hazards at your facility, and designs and installs the appropriate fire protection system for that type of hazard. It is critical to design and install the proper system for each application and with our in-house Design-Build services, we are able to apply our expertise to all of the systems that can be used in high hazard environments including:

  • Foam Systems
  • Suppression Systems (such as FM200, Inergen, CO2, Novec)
  • Detection Systems (Flame Detection, Spark Detection, Gas Detection)

A key element of the Special Hazard fire protection system is the integration of the fire sprinkler system, fire alarms and mass evacuation systems. VFS has divisions that specialize in all of these elements and we are the best in the business when it comes to this integration.

Whether your application is for a Refinery, Chemical Warehousing Facility, Tank Farm, Airplane Hangar, Data Center or any other Special Hazard environment, we have the experience, expertise and people to provide you with the best solution for your unique needs. VFS gets involved in your project starting with design, all the way through installation, maintenance, and monitoring of the system.

Contact us today to find out more about our expertise in Special Hazards!