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HAZARDOUS (CLASSIFIED) LOCATIONS |
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Hazardous Location Conditions |
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In addition to the types of hazardous locations, the National Electrical Code
also concerns itself with the kinds of conditions under which these hazards are present.
The NEC specifies that hazardous material may exist in several different kinds of
conditions which, for simplicity, can be described as normal or abnormal. In the normal condition, the hazard is expected to be present in everyday production operations or during frequent repair and maintenance activities. An abnormal condition describes those situations when the hazardous material is expected to be confined within closed containers or closed systems and is present only through accidental rupture, breakage, or unusual faulty operation. |
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