In electrical and safety engineering, hazardous locations are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible or flammable.

What is a flameproof appliance?

not liable to catch fire or be damaged by fire. (of electrical apparatus) designed so that an internal explosion will not ignite external flammable gas.

What is flameproof or explosion proof equipment?

Flameproof equipment refers to an apparatus designed to ensure that internal ignition within a flammable atmosphere will not transmit outside the protective enclosure. In other words, flameproof equipment prevents the ignition of surrounding flammables in the hazardous area.