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[F] 427.2.3 Gas Cabinets
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Gas cabinets shall be constructed in accordance with Section 5003.8.6 of the International Fire Code and shall comply with the following:
- Cabinets shall be exhausted to the exterior through a dedicated exhaust duct system installed in accordance with Chapter 5 of the International Mechanical Code.
- Supply and exhaust ducts shall be enclosed in a 1-hour rated shaft enclosure from the cabinet to the exterior. The average velocity of ventilation at the face of access ports or windows shall be not less than 200 feet per minute (1.02 m/s) with a minimum of 150 feet per minute (0.76 m/s) at any point of the access port or window.
- Cabinets shall be provided with an automatic sprinkler system internal to the cabinet.
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