Explosion proof lighting is lighting fixtures designed for use in environments with chemicals, gasses, high heat, flammable dust, and liquids. They are specially designed with a rugged enclosure to contain any explosion within the light fixture and prevent it from causing a fire outbreak or igniting the flammable materials in the environment.
Explosion proof lighting reduces the risk of ignition that could occur when flammable materials come in contact with sparks from the light bulb or even the heat generated by regular light bulbs. This is achieved by enclosing all the light fixture components in a durable compartment that can contain any internal explosion. Although explosion proof lights have rigid lenses, they are not always vapor-tight; hence, they don't perform the same function as vapor-tight-proof lights and might not be wholly protected against liquid ingress.
According to the National Electric Code (NEC) published by the National Fire Protection Association (NFPA), it has been mandated that all lighting fixtures used in hazardous locations should be explosion-proof. This is a measure that has to be taken to improve the safety of workers.
As a result, explosion proof lights have been specially designed and approved for these locations, considering the dangers posed during work activities. Ex-proof lights have a robust enclosure that secures the light bulb, wires, sockets, etc., against contact from explosive materials in the air.
On the flip side, ordinary lighting fixtures do not offer such protection, which means the bulb, and wiring, are exposed to flammable materials. For this reason, you should use explosion proof lights to improve the safety of workers in risky environments.
Different explosion proof lights use different bulb technology like the High-Intensity Discharge bulb and halogen bulb, but choosing LED light has many advantages. The major one is cost-efficiency. Although LEDs have higher initial costs, the cost of maintenance is low. Unlike other bulbs, they can last for over 50 000 hours, so you don't have to replace them so often.
LED explosion proof lights are environmentally preferable. They do not contain any harmful chemicals or ultraviolet rays so they are safe to use. LEDs can also be recycled since they are eco-friendly.
In addition, LED bulbs are versatile. They work well in cold weather and do not dim or flicker like fluorescent bulbs. LEDs have good lumen maintenance; the brightness of the light doesn't reduce drastically over time. The light output reduces slowly until burnout time.
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Durability: Explosion-proof lights are highly durable. They can withstand high pressure and tough working environments due to their sturdy makeup. These are your best choice for confined work spaces.
Mobility: Explosion-proof lights have thick lens enclosures made to resist vibrations. They can be transported effortlessly from one location to another without the risk of shattering or malfunctioning. This makes explosion-proof lights the most suitable choice for businesses requiring movable lighting.
Lesser Heat Emission: Explosion-proof LED lights emit less heat, about 90% less than incandescent bulbs. They also use lesser voltage. This reduces the chances of heat causing sparks in the light fixture, reducing the occurrence of an internal explosion.
Efficiency: Explosion-proof lights are highly efficient. They consume less energy and produce high-quality lighting. These diodes can last up to 100,000 hours, and thanks to their durable enclosures, there is less risk of leakages or breakage that will cause the bulb to go bad quickly.
: Explosion-proof lights have multiple application options. You can mount them using different methods like poles, rails, and other mounts, increasing the flexibility of this light fixture.
Hazardous locations are classified according to the category of flammable material present in the environment. Explosion-proof lights are designed to fall into different classifications of risky locations. This classification is based on National Fire Protection Association (NFPA) 70®, National Electric Code® (NEC). The most common classification is the class, division, and group classification.
CLASS
DIVISION
1
Flammable gas, flammable vapors, or liquids are present
Normal hazardous operating conditions
2
Combustible dust is present within the environment.
Abnormal hazardous operating conditions
3
Flammable fibers and flyings are present within the environment.
GROUPS
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CLASSIFICATION
A
Acetylene
B
Hydrogen, butadiene, ethylene oxide, propylene oxide, and acrolein
C
Ethylene, cyclopropane, and ethyl ether
D
Acetone, ammonia, benzene, butane, ethanol, gasoline, hexane, methane, methanol, methane, naphtha, natural gas, propane, and toluene
E
Combustible metal dust: aluminum, commercial alloys, and magnesium
F
Combustible carbonaceous dust: carbon black, charcoal, coal, and coke dust
G
Other combustible dust: Chemicals, flour, grain, plastic, and wood
People often confuse these two light fixtures; however, while they achieve the same purpose, which is to prevent fire outbreaks, there is a big difference in how they achieve this.
Explosion proof lights are designed to contain any explosion within the light fixture to prevent it from spreading outside. Their durable covers act as a barrier so, in case of an explosion, the spark will be contained. This prevents the spark from igniting the flammable particles and gases in the atmosphere, thereby preventing a fire outbreak.
On the flip side, intrinsically safe lighting is powered by low-voltage bulbs like LED bulbs. They are designed to limit the amount of energy consumed so that sparks cannot occur, preventing internal explosions. Intrinsically safe lights often use batteries and rechargeable batteries instead of electricity.
Unlike explosion-proof lights, intrinsically safe lights are designed to prevent explosions instead of containing them. A typical industrial intrinsically safe light circuit will have a temperature sensor installed to limit the amount of energy consumed.
Explosion proof lights are enclosed in hard lenses to reduce the chances of a fire outbreak when a light bulb ignites a flammable material. They are designed to contain the explosion to prevent its spread.
LED explosion proof lights are durable and can be easily moved around. They also consume less energy and have high lumens. Explosion proof LED light has low heat emission which helps to reduce the risk of explosion.
Oil and Gas Industry: Explosion-proof lights are necessary for the oil and gas industry due to flammable gases and vapors, which sparks or other ignition sources can ignite. The hazardous nature of this industry poses a significant risk to worker safety, and explosion-proof lighting is critical in preventing explosions and fires. Using explosion-proof lights mitigates the risk of sparks and ignition, reducing the potential for accidents and ensuring worker safety in these hazardous environments.
These hazardous environments also pose a risk of explosion and fire, which can be prevented using explosion-proof lighting.
Mining Industry:
In the mining industry, explosion-proof lights are required due to the presence of flammable dust and gases that can be ignited by mining equipment. The risk of sparks and ignition from mining equipment is high, and these hazards must be mitigated using explosion-proof lighting to prevent explosions and fires. Additionally, mining environments are often harsh and hazardous, and explosion-proof lights must withstand these conditions to ensure worker safety and avoid damaging equipment and facilities.
The risk of sparks and ignition must be mitigated using explosion-proof lighting to prevent explosions and fires.
Chemical Processing Plants:
In chemical processing plants, explosion-proof lights are necessary due to flammable liquids, gases, and corrosive materials. The potential for chemical reactions and explosions is high in these environments, and the risk of sparks or other ignition sources must be mitigated with explosion-proof lighting. Additionally, corrosive materials can cause damage to equipment and facilities, which can be prevented with the help of explosion-proof lighting resistant to corrosion. In addition, explosive-proof lights are critical in ensuring worker safety and preventing accidents and damaging equipment and facilities in these hazardous environments.
The potential for chemical reactions and explosions can be reduced using explosion-proof lighting.
Food and Beverage Processing Plants:
In food and beverage processing plants, explosion-proof lights are required due to flammable dust, gases, high temperatures, and humidity. The risk of sparks and ignition is high in these environments, and using explosion-proof lighting can mitigate these hazards to prevent explosions and fires. High temperatures and humidity can also contribute to the fire risk, making explosion-proof lighting critical in ensuring worker safety and preventing damage to equipment and facilities. In addition, explosion-proof lighting is necessary for hazardous environments, including food and beverage processing plants, to ensure maximum safety and protection for workers and facilities.
Using explosion-proof lighting can also reduce the risk of contamination fromcteria and other microorganisms.