What Is Explosion Proof Lighting?

- Apr 24, 2019-

Two kinds of fixtures are certified for use in hazardous areas, intrinsically safe fixtures and explosion-proof lights. Intrinsically safe fixtures are extremely low powered and cannot produce enough heat or spark to ignite the flammable particulates. Explosion-proof lighting works by ensuring ignition of the flammable airborne specks in the fixture keeping the remains contained inside.

In a typical lighting fixture, the contacts, bulb, wiring and switches are exposed to the atmosphere. The spark from a movement of the switch, and even the heat of the bulb can be enough to create a flammable atmosphere. In a flammable proof lighting fixture, any explosion that may happen is contained inside of the fixture itself.

Most people presume that these installations work by having a seal around the bulb as well as any switches so as to not allow flammable specks to become exposed to a spark or heat. This isn’t correct. More correctly, the fixture lets a small amount of air to flow within the fixture, and should be combustible pieces ignite, the fixture is designed in such a way that it will contain the flame inside the fixture housing.

The kind of lights required in a hazardous area is fixed on by the kind of flammable materials that will be in the air where the fixtures are going to be used.

Cary manufactures a large range of explosion proof lighting. Visit our website for more information today or contact us for a quotation!