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| Openings Designed In a
Ground- Joint |
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It is of vital importance to make certain that all flame paths are protected
during installation and maintenance, and even during handling, shipping, and storage of
explosion-proof material.
Even slight damage to a flame path can permit burning gases to escape, igniting the
surrounding atmosphere. All cover bolts must be installed for the same reason. A single
missing bolt can allow the release of flaming gases.
In designing equipment for Class I, Division 1 locations, it is assumed that the hazardous
gases or vapors will be present and eventually seep into the enclosure, so there is a very
real chance for an internal explosion to occur.
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