Dust Explosion Hazard Management Requirements of NFPA 652: Standard on the Fundamentals of Combustible Dust

摘要

In any facility where combustible powders are processed or handled there is a risk of flash fires, explosions, or otherwise unplanned loss of containment and release of energy. An explosible atmosphere is typically created when the right amount of a combustible dust is mixed with the right amount of an oxidant, usually the oxygen in air. Ignition of an explosible atmosphere occurs if the energy of the ignition-source exceeds the minimum energy that is required to ignite the mixture at the given process conditions. Table 1 below list potential ignition sources in facilities where combustible powders are processed and/or handled.