The entire factory building is classified as Category B, and explosion-proof zones have been designated in the areas near potential hazards; then, do other parts of this Category B factory building also need to be protected against...
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The entire factory building is classified as Category B. An explosion-proof area has been designated in a certain room of the building, near the sources of hazard (this explosion-proof area constitutes only a small portion of the total floor area). Do the motors and other equipment located in other parts of this Category B factory building also need to be explosion-proof? ?
Why isn’t anyone responding? ? ? ?