Stepping through the 2011 NEC

[G._S._Ohm]

What task or tasks would typically have me going through many, many sections of the NEC? The more referrals to other articles/sections, the more Fine Print Notes, the more tables used, the better.

TIA.

 

[fisherelectric]

How about engineering the service and feeder sizes for a 125 unit apartment building with electric ranges, dryers, heating and AC, with a load center in each apartment, including all conductor sizes and pipe sizes, elevator, house loads, parking lot lighting, parking garage, and all associated equipment?

 

[Dennis Alwon]

I don't think there is any viable short cut thru the NEC. I think following the forum and using the NEC everyday is a big help.

 

[G._S._Ohm]

How about engineering the service and feeder sizes for a 125 unit apartment building with electric ranges, dryers, heating and AC, with a load center in each apartment, including all conductor sizes and pipe sizes, elevator, house loads, parking lot lighting, parking garage, and all associated equipment?

Yeah, I think that is a pretty good start! :lol:
I'll have to take a chunk of this at a time, probably over weeks, and this will hurt. No pain, no gain. . .

 

[fmtjfw]

What task or tasks would typically have me going through many, many sections of the NEC? The more referrals to other articles/sections, the more Fine Print Notes, the more tables used, the better.

TIA.

Search for the term "ampacity". Come up with rules that describe how you calculate ampacity in all cases. Good Luck.

For example: a feeder to multiple welder loads combined with multi-motor loads and 8-hour duration lighting in a conduit crossing a roof-top at 3 inches height in Buffalo NY.

 

[G._S._Ohm]

Thanks, folks. . .these are the kind of (extreme, I think) examples I need to get me going.

It seems like the first cheat sheet I should commit to memory are the 2011 definitions.

 

[kwired]

Cheat sheets commited to memory is what will make this different for every individual. Some use certain sections enough in what they normally do, that they don't always need to open the book to do certain tasks. Even selecting conductor sizes, raceway sizes, box fill, overcurrent protection, becomes automatic for those that do a particular install or variations of it repeatedly.

 

[G._S._Ohm]

Thanks, Dennis and kwired.

If I get general and specific procedures that work for me I'll keep summaries and build from there. I'm doing this for all my books, that and writing Excel routines that do the calcs.