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

Class III Areas

utilization equipment

Utilization equipment is equipment that uses power. Typically this would include luminaires, motors, and heaters, but may also include transformers and similar heat-producing equipment. Devices such as switches and circuit breakers are normally only required to be in dusttight enclosures. However, other equipment may have to meet stricter criteria. For example, capacitors and transformers in Class III areas must meet the requirements for Class II areas, heaters must be identified for Class III locations, and storage battery chargers (like those used in fork trucks) must be located in separate rooms and isolated from fibers and flyings. Power supplies, contact conductors, and current collectors for cranes and hoists must also meet special requirements where they are used over combustible fibers.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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