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507.4.8 Clearance Between Duct and Interior Surfaces
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Clearances between the duct and interior surfaces of enclosures shall be in accordance with the requirements of Section 507.4. [NFPA 96:4.5]
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UNPROTECTED SURFACES [NFPA 91:TABLE 4.7.3]
DUCT GAS TEMPERATURE
LARGEST DUCT DIMENSION (inches)
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2018 Uniform Mechanical Code of Nevada > 5 Exhaust Systems > 506.0 Product-Conveying Ducts > 506.10 Duct Clearances