Usually, explosion-proof electrical equipment is explosion-proof and safe through a flameproof enclosure. The explosion-proof principle of flameproof electrical equipment is to place the live parts of the electrical equipment in a special enclosure, and the enclosure has the function of isolating the sparks and arcs that may be generated by the electrical parts inside the enclosure from the explosive mixture outside the enclosure.
And this enclosure should be able to withstand the explosion pressure generated when the explosive mixture entering the enclosure is ignited by the sparks and arcs of the electrical equipment inside the enclosure. Under this pressure condition, ensure that the enclosure is not destroyed; at the same time, it can prevent the explosion products inside the enclosure from spreading to the explosive mixture outside the enclosure, and will not cause the explosive mixture outside the enclosure to burn and explode.
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