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NOTE: This is an unformatted excerpt from our online fire protection training library.

Class III Areas

Class III Considerations

Housekeeping

Many areas where ignitible fibers or flyings are produced or otherwise present might not be classified areas if the ignitible materials are kept from accumulating. Even with dust collection systems, some fibers and flyings are likely to be loose likely to be loose
For example, significant amounts of sawdust are not captured by dust collection systems at some types of equipment such as saws. and may collect in or on machinery or on other surfaces such as floors or electrical enclosures. Often, ignitible quantities that are hazardous may be kept from accumulating by regular and thorough housekeeping practices housekeeping practices
Adequate scheduled cleanup, combined with dust collection systems can prevent ignitible quantities of dust, fibers, or flyings from building up. In areas that are not easily reached for cleaning, steeply sloped enclosure tops will shed fibers or flyings and keep them from accumulating..
NOTE: This is an unformatted excerpt from our online fire protection training library.

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