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2020 NEC Optional Method Calculations
Bob teaches you how to do the option method for dwelling unit calculations for both single family and multifamily dwellings. All graphics courtesy of Mike Holt Enterprises. For more information on our test preparation courses for your Master or Journeyman Electrician's License classes visit our website at http://www.constructionseminars.com
![Ampacity Table, NEC 2020 [310.15], (13min:26sec)](https://i.ytimg.com/vi/MXdt6TfBetg/mqdefault.jpg)
![Branch Circuit, Multiwire, NEC 2020 [210.4], (19min:38sec)](https://i.ytimg.com/vi/Qynp92rIlYg/mqdefault.jpg)
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