jcgjupiter
Member
Please give this some thought, its really bugging me. In the Stallcup book, published by the NFPA. In all the examples and questions for Commercial load calculations, the Neutral is only calculated at 100% not 125%.
The load is figured at 125% on the ungrounded conducters for each continuos loaded calc, but the neutral only at 100%.
Could these expensive books published by the same people (NFPA) that put out the NEC have made such a grevious error.
I know what the code says ( maximum unbalance) and all that, but is there something somewhere in my feeble understanding as i am learning that I am missing. I know everyone else does it differently. (Tom henry, Mike Holt,) but this Henry Stallcup didn't start yesterday either.
Go to a Technical Bookstore look at Stallcup's 2002 Master Electrician book (very thick) look at commercial calculations. On page after page
you will see the for continuos loading the load is figured at 125%, the neutral at 100%.
Can anyone share some insight on this. I know in the real world it probably wouldn't make a difference in the size of the neutral, but on a tough test it would. Thanks for hearing me out. Johnny
The load is figured at 125% on the ungrounded conducters for each continuos loaded calc, but the neutral only at 100%.
Could these expensive books published by the same people (NFPA) that put out the NEC have made such a grevious error.
I know what the code says ( maximum unbalance) and all that, but is there something somewhere in my feeble understanding as i am learning that I am missing. I know everyone else does it differently. (Tom henry, Mike Holt,) but this Henry Stallcup didn't start yesterday either.
Go to a Technical Bookstore look at Stallcup's 2002 Master Electrician book (very thick) look at commercial calculations. On page after page
you will see the for continuos loading the load is figured at 125%, the neutral at 100%.
Can anyone share some insight on this. I know in the real world it probably wouldn't make a difference in the size of the neutral, but on a tough test it would. Thanks for hearing me out. Johnny