Minimum bend radius requirements for 90-degree and 45-degree conduit elbows based on EIA/TIA 569 Table 5.2-1 are provided. A companion table defines outside diameters and minimum bend dimensions for 2-inch, 3-inch, and 4-inch conduit sizes.
C A A C 45° ELBOW B B C 3-1/4" MIN. 3-1/2" A 90° ELBOW B 3.500 O.D. 2.375 3" SIZE 2" 31" MIN. 21" REF: EIA/TIA 569 TABLE 5.2-1 4" 4.500 40" 3"
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