A Simple Guide to Explosion Rated LED Lighting




Explosion rated lighting, which also goes by the name Intrinsically Safe and Hazardous Location Lights, is UL certified lighting that complies with OSHA Safety Standards and is used in areas with pulverized dust, flammable petrochemical vapors, or ignitable fibers – or where the three have a probability of existing.



We can further define these lights as those that resist catastrophic ignition because of their physical design, materials, and technical engineering. They have different classifications which are important to understand, because the classifications make them ideal for different settings.


Explosion Proof Lighting Classifications


The Canadian Electrical Code (CEC) and the National Electrical Code (NEC) have three different classifications for hazardous lighting locations: class I, class II and class III. These are broad classifications which differentiate explosion proof lights. Each of the classes is further broken down into two different divisions.

Most of the new explosion proof lights feature LED technology which minimizes costs and ensures the lighting fixtures have a long lifespan. Unlike regular industrial LED light fixtures, explosion proof rated LED lights have sturdier frames, casings, and feature tempered glass.

Any internal electrical component that might trigger sparks is tightly contained to keep the sparks away from flammable fibers, dust, and vapors in the atmosphere. The classification for explosion proof lighting indicates the exact hazardous lighting location the fixture is ideal for.

Class I (Division 1): spaces with flammable quantities of ignitable liquids, vapors, or gases in the atmosphere under normal conditions

Class I (Division 2): spaces with flammable quantities of ignitable liquids, vapors, or gases in the atmosphere under abnormal conditions

Class II (Division 1): spaces with flammable quantities of combustible dusts in the atmosphere under normal conditions
Class II (Division 2): spaces with flammable quantities of combustible dusts in the atmosphere under abnormal conditions

Class III (Division 1): spaces with flammable materials or fibers that release combustible particles into the atmosphere under normal conditions

Class III (Division 2): spaces with flammable materials or fibers that release combustible particles into the atmosphere under abnormal conditions

Apart from being categorized according to classes and divisions, OSHA requires that lighting fixtures be further identified by one group (out of the seven available: A through G) and their operating temperature range. The 7 groups identify the concentrations, characteristics, and types of materials present in the environment of a hazardous lighting location.

Choosing Explosion Proof Rated LED Lighting


It is important for industrial architects and electrical professionals to understand the Class, Division and Group of explosion proof LED lighting when working on industrial sites as this will ensure that the employees who work in those environments are safe.

If a hazardous location is not properly classified or if the lighting system in the space does not comply with CEC or NEC code requirements for the location, wayward sparks or hot lighting fixtures can cause an industrial fire that may quickly get out of control and endanger the lives of the employees in the facility.

MyLEDLightingGuide offers a variety of explosion proof rated LED lights that are ideal for different types of environments.

Talk to our industrial lighting experts today and get the professional help you need to choose the right hazardous location lighting.


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