Mike Holt's Electrical Ex. Prep. Capter 9 Table 9.

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Gaston

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I got the, Mike Holt 2002 Exam Prep Book, I was reading the example on V. drop Fig. 1-20 . page 14. It cites 0.2 Ohm per NEC Chapter 9 table 9 ( per Ft. method )..... Well I need help understanding how the 0.2 has been obtained from the Table, since 12 AWG is 2.0 per 1000 ft. and the exercise is based on a 100 ft. distance for alternating-current resistance for uncoated cooper wires.

I'd like thank you, in advance, for your help.
 

Gregg Harris

Senior Member
Location
Virginia
Occupation
Electrical,HVAC, Technical Trainer
I got the, Mike Holt 2002 Exam Prep Book, I was reading the example on V. drop Fig. 1-20 . page 14. It cites 0.2 Ohm per NEC Chapter 9 table 9 ( per Ft. method )..... Well I need help understanding how the 0.2 has been obtained from the Table, since 12 AWG is 2.0 per 1000 ft. and the exercise is based on a 100 ft. distance for alternating-current resistance for uncoated cooper wires.

I'd like thank you, in advance, for your help.

What is 1000 divided by ten?

What is 0.2 times 10?
 
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