Protecting Recessed Boxes in Fire-Resistive Construction
Where walls or partitions are required to have a fire-resistance rating, recessed fixtures shall be installed such that the required fire resistance will not be reduced.
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26 05 33 RACEWAYS AND BOXES FOR ELECTRICAL
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Can recessed boxes in fire rated walls must meet one of the following installation: A. Separated by horizontal distance of no less then 24 inch. B. Be surrounded by a fire rated gypsm in 5
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