Class 1 Div 1 LED Lighting

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TheLightingCenter offers Class 1 Div 1 LED lighting that’s designed to remain safe in hazardous environments.

Our Class 1 Div 1 LED lighting products have been designed and built to be used safely in the presence of hydrogen, acetylene and other petrochemicals & gas fumes. Commonly our class 1 div 1 lighting LED (C1D1) are used in petrochemical tanks, boat yards & marine applications, plants, oil rigs, spray paint booths, and more. 

Our Class 1 Div 1 LED lights not only run safely in these dangerous & hazardous environments and are explosion proof, but they also reduce energy costs up to 75% and improve safety through high quality light output.

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Class 1 Division 1 LED Lighting

Choosing the appropriate light fixtures for areas designated as hazardous is much harder than choosing lights for other commercial applications. There are a lot more considerations to keep in mind, not just the lumen output. The Occupational Safety and Health Administration, commonly known as OSHA, has regulations for hazardous environment lighting that are very specific regarding the characteristics and features of lights allowed for use in such areas.

LED lighting designed for industrial use is usually the go-to lighting for industries. However, not all industrial quality LED lights are suitable for hazardous environments. The features of an LED light fixture must therefore be assessed to determine if it can withstand the threats that environment intrinsically has.

Electrical equipment that is faulty can ignite or cause explosions in a hazardous environment. Areas that have concentrations of explosive vapors or dust require light fixtures with safe electrical components and special wiring.

Examples of hazardous locations include grain bins, paint finishing applications, aircraft hangars, gasoline stations, and oil and gas facilities. Such areas might have substances of a hazardous nature in sufficient quantities in the air to ignite or cause an explosion.

In the U.S., hazardous locations are classified in the Articles 500-506 of the National Electric Code® (NEC) and Publication 70 of the Fire Protection Association (NFPA). The NFPA has classified these areas in terms of classes, followed by divisions then zones. These classifications point to the hazardous conditions prevalent in an area. OSHA, whose main mission is to stop work-related illnesses, injuries, and deaths, has adopted the NEC classifications.

Hazardous Locations Classifications

These environments have vapors or flammable gases present in the air in quantities sufficient to produce an ignition or explosion.

 

Class 1 Division 1 locations have:

Flammable vapors or gases in ignitable concentrations existing in them during normal operations.

Vapors or gases in ignitable concentrations frequently occurring due to maintenance or repair operations or at times due to leakages of products

Processes or equipment that may break down or become dysfunctional, releasing ignitable quantities of flammable vapors or gases. Such occurrences could also cause electric equipment failure

Hazardous Location Lighting Groupings

    OSHA also does require that lighting products used in these hazardous locations have approved class, group, and temperature range (or operating temperature marks) on them. The agency, however, does not provide a clear definition of what group classifications mean, but it has a note in 29 CFR 1910.307(c)(1). This note points to the group classifications in the National Electric Code and the NFPA 70.

    According to the NFPA, hazardous vapors, dusts, and gases groups are classified and characterized by their combustible or ignitable qualities. If you want to ensure that your lighting fixtures meet OSHA’s requirements, you should check their markings before purchase. These groupings are outlined in the NEC 2014 as:

     

    Group Threat Maximum Experimental Safe Gap (or MESG Value Required) Minimum Igniting Current Ratio (or MIC Ratio Required)
    A Acetylene    
    B Flammable or combustible gas or liquid which produces vapor that if mixed with air will explode or burn, such as hydrogen At least 0.45mm At least 0.40
    C Flammable or combustible gas or liquid which produces vapor that if mixed with air will explode or burn, such as Ethylene 0.45mm to 0.75mm 0.40 to 0.80
    D Flammable or combustible gas or liquid which produces vapor that if mixed with air will explode or burn, such as Propane At least 0.75mm Greater than 0.80
    E Metal dust that is combustible in nature from commercial alloys, magnesium, aluminum or any other dust whose conductivity, particle size, and abrasiveness can be a cause of electrical equipment hazard    
    F Combustible dust from carbon that has at least 8% entrapped volatiles such as charcoal, carbon black, coke, or coal dust    
    G All other types of combustible dusts outside the groups E and F, including grain, flour, chemicals, wood, or flour dust.    

     

    Light fixtures installed in Class 1 Division 1 areas can play a proactive role in the efficient and safe operations of hazardous industrial facilities. Some of these applications are often enclosed and darkened – with round the clock activity – and are utterly reliant on high-quality illumination.

    During the day, such areas also benefit from the lighting provided by light fixtures. Facilities such as grain storages, petrochemical companies, and food processing plants need light fixtures that overcome the challenges mentioned above and offer safe lighting.

    What Makes LED Class 1 Div 1 Lights Different?

     

    If the wrong light fixtures are used in Class 1 Division 1 locations, they have a very high potential of causing catastrophic chain reactions that lead to explosions. The traditional HID lamp has an internal pressurized atmosphere. In case the delicate glass bulb suffers damage, it can release an electric spark that could ignite flammable gases or vapors in its surroundings.

    Sparks in traditional light fixtures could also be caused by a faulty or overloaded electrical system due to the massive wattages HID lamps utilize. The bulbs also generate light through an oxidative process that produces a lot of infrared energy. This energy causes thermal buildup when the lamp has to operate continuously for long hours. In such high temperatures, an explosion becomes imminent.

    LED lights, however, do not have pressurized glass bulbs or tubes that can fracture on impact or through vibrations. In simple terms, these lamps produce light when electrons travel around within their semiconductor structures. To make them hardy, they are built with rugged casings and frames that are scratch-resistant, crack-resistant, and fracture-resistant. They also have lenses made of tempered glass.

    In hazardous locations, regular LED lights can still pose a threat of explosion. And while these lights offer better performance compared to traditional lights, thanks to their inbuilt heat sinks that excellently dissipate heat, they are not ideal for hazardous lighting locations as they lack the proper components.

    LED Class 1 Div 1 light fixtures have casings made of ultra-durable aluminum that not only protect the internal components from damage but also ensure that any sparks within the fixtures are contained and not released into the atmosphere in case of an explosion.

    Intrinsically Safe: LED Class 1 Div 1 Lighting

    Some terminologies used in regards to these industrial LED lights can be quite confusing, so we’ll break it down. Explosion proof LED lights can contain an explosion and hinder it from advancing into a fire. Intrinsically safe light fixtures, on the other hand, operate on lowered electrical loads, lowering ignition risk. However, genuine LED Class 1 Div 1 lighting should have its Class, Division, and Group category clearly marked for ease of selection.

    Class 1 div 1 rated lights are built to eliminate sparking, which would otherwise potentially ignite in a location with ignitable fumes in the area. We built our class 1 division 1 lighting fixtures to eliminate sparking, making them intrinsically safe LED lights that will remain safe in the harshest and hazardous conditions.

    Our explosion proof, Class 1 Division 1 LED light fixture products come in one shape, allowing us to perfect it and make it the best in its class and division, while offering the best possible price.

    Alternatively, you can replace hazardous location commercial metal halide or high-pressure sodium class 1 division 1 hazardous location luminaries in your existing explosion proof class 1 division 1 with our industrial grade retrofit units that still meet class 1 division 1 explosion proof light safety standards. Our retrofits are also DLC approved, and offer equivalent lumen output with less power consumption.

    How Explosion Proof LED Class 1 Division 1 Lights Are Designed

     

    Light fixtures used in hazardous locations are also referred to as hazardous location light fixtures. They have to withstand the combustible gases and vapors common to these regions. In the event of an explosion, they reduce the risk of explosive reaction from activating explosive substances.

    These lights have inbuilt flame paths that prevent ignited vapor or gas from leaking to the surrounding environment. The flame paths are designed to vent the explosion’s pressure by forcing the gas to travel though them. As it travels, it is cooled to sufficient levels and then released to the environment without its heat.

    Some light fixtures have integrated labyrinth paths, interlocking concentric rings, close tolerance shafts, or conical and acme precision conical threads. These light fixtures last longer and keep the environment around them cool.

    Gasketed and enclosed LED explosion proof fixtures have inherent thermal and mechanical engineering properties. For instance, they have internal heat buildup reduction features such as control gears that disperse heat. Reflectors are normally used to ensure higher light efficiency. Using metallurgy techniques as well as bracket placements, heat can also be drawn away from the light fixtures’ internal components and directed out via their casings.

    LED Class 1 Division 1 lights are the safest light fixtures there are for production lines as well as maintenance crews working in hazardous locations. These lights last longer and therefore cut down maintenance time and costs that can negatively affect a company’s bottom line.

    Retrofitting traditional light bulbs with Class 1 Div 1 LED lights will not only improve employee performance and reduce lighting costs, it will also help you to adhere to industry regulations. These lights are also tunable and emit a fantastic quality of light.

    Talk to Us about Class 1 Division 1 LED Lights

     The proper application of class 1 div 1 LED lighting fixtures is critical to maintain a safely operating lighting system where perpetual or consistent petrochemicals or other ignitable concentrations & hazardous gases are exposed to the lighting system. For hazardous work site areas where ignitable gases are more contained or ventilated, then a Class 1 Div 2 lighting fixture may be a suitable option for that location.

    Our perfected class 1 division 1 LED lighting fixture products are designed to meet qualifications for these environments along with a UL listing and are DLC approved.

    We found that matching this class 1 div 1 light qualification with LED technology allows for companies to maintain a safe lighting system in hazardous locations while reducing energy costs by up to 75% and reducing overall costs of a typical explosion proof class 1 div 1 lighting system.

    Over the years, we have installed LED Class 1 Div 1 lights in many hazardous locations. We are experts in explosion proof lighting. Let us help you switch to LED technology easily and effortlessly.

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    Last Updated: 09/28/2020

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