Electrical motors are commonly employed in various industries. They generally pose little threats unless they are in use in classified workplaces. In plants in Texas that process combustible materials, this can create very dangerous conditions. Any ignition source can spark a fire or an explosion. For this reason, legislation and common sense dictate the installation of not just any electric motor. The situation calls for an explosion proof motor.
Defining Explosion Proof
Explosion-proof is a term specifically applied to those motors with approval for Class I locations. Class I refers to a site where combustible and/or explosive gasses and vapor are present. The National Fire Protection Association (NFPA) notes that the amounts of these materials must be sufficient to present a risk of an explosion occurring.
The motors suitable for function within this type of environment are explosion proof. As Class I motors they can contain the explosion within the unit while not rupturing. They may qualify for operating in Division 1 or Division 2 of Class I classified facilities. Actually, since Division 2 presents a minor risk because of intermittent or contained gas and vapor risks, the addition of an explosion proof motor is a precaution and not required by law. Many companies in Texas utilize explosion proof motors as an option even in Division 2 situations to reduce any potential risk. However, when the location falls into the Class I Division this type of motor is essential.
The Explosion Proof Motor
If you have an operation that the NFPA categories as Class I, make sure you comply with the necessary precautions to prevent a disaster occurring. When it comes to any workplace or location with the potential for an explosion occurring, always err on the side of caution. Make certain that your choice is an explosion proof motor. In Texas, smart companies know this is the legally compliant and safe route to take.
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