TABLES


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TABLES
TABLESThe basic requirements governing the maximum permitted fill for raceways and tubing recognized by the NEC are covered in Table 1 of Chap. 9. That table shows 53 percent as the maximum cross-sectional area of a raceway or tube that may be occupied by a conductor, where a single conductor is run within a raceway or tube. Where there are two conductors within the raceway or tube, then the maximum permitted fill— the area occupied by the conductors—is reduced to no more than 31 percent of the raceway or tube's cross-sectional area, which is shown in the applicable part of Table 4. And the most commonly encountered installation—three or …
Citation
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. TABLES, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export