Introduction
In the ever-evolving industrial landscape, safety remains a primary concern, especially when it comes to flammable substances. One of the most reliable ways to protect yourself against potential risks is by following strict safety regulations while operating machines that may be flammable.
In this article, we will focus on Class 1, and Division 2 locations.
What is Class 1, Division 2?
Class 1, Division 2, or C1D2 is a location classification defined by the National Fire Protection Association (NFPA). It is a classification system that helps identify fire and explosion hazards.
To be classified as Class 1, Division 2, an area must meet specific criteria. Class I, Division 2 locations are areas in which flammable liquids or gases are handled or used. Flammables make C1D2 locations dangerous to work in. Thus, there are some safety measures to apply.
Safety Measures
Ventilation: The saturation of flammables is an important parameter. Since ignition can occur when a certain level of air and fuel mixture is reached. Thus, adequate ventilation must be installed to mitigate the risks.
Enclosures and Equipment: Flammables can ignite even with a small spark. To prevent catastrophes, all potential sources of sparks must be enclosed. The enclosure must be on par with safety standards such as NEMA 7.
Ignition Sources: Sources of ignition, such as electronic devices must be carefully selected. Their use must be limited as much as possible. All electrical connections must be checked regularly against damage.
Emergency Shutdown: C1D2 locations should have emergency systems in place. These systems should shut down equipment to cut off flammable flow during an incident.
Fire Extinguishing Systems: C1D2 locations must be employed with emergency fire systems. These systems must be selected according to the fire and explosion risks. Automated sprinkler systems, fire hoses are some of the most common examples.
Emergency Alarm Systems: Emergency alarm systems are designed to warn the surrounding workers during an emergency. In a C1D2 area that emergency can be an explosion or a fire. However, other emergencies might cause additional problems, such as damaged pipes because of an earthquake. That is why, during any kind of emergency the area must be evacuated and isolated. The best way to make sure that can happen is to take advantage of automated alarm systems.
Ex-Proof Equipment: As mentioned above, sparks are dangerous. Another way to prevent ignitions caused by sparks is using ex-proof equipment. Ex-proof equipment is built specifically to mitigate the risk of spark generation. This makes them invaluable for use in C1D2 areas.
Conduit Systems: Wiring systems can overheat and release additional hazardous fumes. Appropriate conduit methods to prevent the release of flammables are a must.
Conclusion:
Class 1, Division 2 locations are places where flammables are handled and used. This makes them a difficult environment to work in. However, they can be made safe by following international guidelines.
