INFORMATIVE ANNEX B. APPLICATION INFORMATION FOR AMPACITY CALCULATION


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INFORMATIVE ANNEX B. APPLICATION INFORMATION FOR AMPACITY CALCULATION
INFORMATIVE ANNEX B. APPLICATION INFORMATION FOR AMPACITY CALCULATIONThe data given here are for use where conductor ampacity is calculated "under engineering supervision," as covered by 310.15(C). It should be noted that many jurisdictions do not recognize the use of 310.15(C)—especially if the conductor ampacity determined by that method is greater than the ampacity that would be permitted by the more familiar procedure given in part (B) of 310.15. Always check with the local authority having jurisdiction before determining conductor ampacity in accordance with 310.15(C). And, where such calculation is permitted, it must be conducted under "engineering supervision," which would preclude application by a good percen…
Citation
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. INFORMATIVE ANNEX B. APPLICATION INFORMATION FOR AMPACITY CALCULATION, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export