A flameproof enclosure’s effectiveness stems from its ability to contain flames within, even when an explosion occurs inside the electrical equipment casing. This containment is ensured by preventing the flames from escaping through various joint surfaces.
Adherence to specific standards regarding the gap, length, and surface roughness of these joints is crucial. These gaps not only extinguish the flames but also cool them effectively. They reduce the temperature of the flames passing through to a level insufficient for igniting any explosive mixtures that may be present outside the enclosure.
