Need advice on drawings

[sdold]

You need to fix the stuff like "IRRIVERSIBLE", too.

[GreenTeeCrazy]

Ok, Rafters @ 16", By providing enough support to all panels without exceeding the maximum spacing limits and observing Zone 2 and 3.

my best configuration:

rafter

1.......2......3......4......5......6......7...... 8
4-----2-----4-----2-----2----4-----2-----4

rail 1@ top: 1,3,6,8
rail2: 1,3,5,7
rail3: 2,4,6,8
rail4: 1,3,5,7
rail5: 2,4,6,8
rail6: 1,3,6,8

??? what do you think?

[foo1bar]

here is an update to 1 line diagram, i hope this will make more sense, watching Amy Schumer late at night and drawing is not fun

How many ways can you spell diagram?

The filename you made an attachment has it misspelled in the filename.
AND at the bottom of the jpg it is misspelled.

[GreenTeeCrazy]

You need to fix the stuff like "IRRIVERSIBLE", too.

Steve, where is irreversable? i cant find it!!!!

[GreenTeeCrazy]

How many ways can you spell diagram?

The filename you made an attachment has it misspelled in the filename.
AND at the bottom of the jpg it is misspelled.

I think i am rushing too much to get this permit done, I'll til tomorrow.... to fix all the bugs

[foo1bar]

??? what do you think?

Have you mapped out the rafter relationship to the array that it'll actually be as you have it laid out in the image?

I didn't map mine out completely until after I had applied for the permit. (I figured out how many I'd likely need - but I didn't do exact placement until I was on the roof)

[foo1bar]

Steve, where is irreversable? i cant find it!!!!

Your one-line. by the Jbox.

[foo1bar]

Sorry i cant edit post!!!!!

more pics
these 2 are part of a doc file named "Overview Plan"

I think these help a LOT for someone looking at the plans - makes it much easier to understand them.

Have you figured out how you're going to get the wires from the western roof section to the eastern roof section?

[JFinch57]

Where do you get "Where do you get "THWN-2 (90 °C) #12AWG conductor is rated for 30 A"? I'd say 20A. Also, do you need a PE to sign off on your roof load certification? I know at PE that did 2 of mine in NJ, Harry Braich, and he didn't charge an arm and a leg!

[sensij]

The way in which the ampacity adjustments and corrections was done is sort of logically backwards... the conductor rating should be adjusted down and checked against the rated ampacity of the circuit, not the circuit ampacity adjusted up. 12 AWG is OK for the 9 panel strings.

90 deg 12 AWG base ampacity = 30 A
adjustment for conduit fill = 30 * 0.8 = 24 A
correction for temperature = 24 * 0.71 = 17 A

17 A > circuit rating of 11.25 A - OK
17 A > 15 A breaker - OK
25 A terminal rating for 12 AWG > circuit rating of 11.25 A - OK
15 A breaker <= 20 A for 12 AWG - OK

[GreenTeeCrazy]

I would like to thank everyone who for taking their time to answer and guide me in my quest.

Irreversible is/was removed

If you mean the Enphase engage cable, I am running it as "5" shape. from top right panel to the the lower bottom left next JBOX on both circuits.

running the cable from Ciruit 2 to Circuit 1 to MNPV6 using 1" Utlratite NM conduit. After inspection is passed ( permit 1st lol) I am going to spray paint it to match the siding of the house. I'll discuss that with the inspector 1st.

Also i do have to access to the attic, so i installed over the weekend a blocking system to support more weight on my aging roof, In the worst case scenario that if i missed a rafter, i can always install 2x6 joint under the roof membrane .

@JFinch57, About the PE, I am going to wait and see if the inspector request the report, But thank you for the info. Did you do your own installation?

[GreenTeeCrazy]

The way in which the ampacity adjustments and corrections was done is sort of logically backwards... the conductor rating should be adjusted down and checked against the rated ampacity of the circuit, not the circuit ampacity adjusted up. 12 AWG is OK for the 9 panel strings.

90 deg 12 AWG base ampacity = 30 A
adjustment for conduit fill = 30 * 0.8 = 24 A
correction for temperature = 24 * 0.71 = 17 A

17 A > circuit rating of 11.25 A - OK
17 A > 15 A breaker - OK
25 A terminal rating for 12 AWG > circuit rating of 11.25 A - OK
15 A breaker <= 20 A for 12 AWG - OK

I agree with you, I am trying to get the lowest drop/rise %

[GreenTeeCrazy]

Here are the .doc files for the proposal work:

Roof pemmit

[JFinch57]

The way in which the ampacity adjustments and corrections was done is sort of logically backwards... the conductor rating should be adjusted down and checked against the rated ampacity of the circuit, not the circuit ampacity adjusted up. 12 AWG is OK for the 9 panel strings.

90 deg 12 AWG base ampacity = 30 A
adjustment for conduit fill = 30 * 0.8 = 24 A
correction for temperature = 24 * 0.71 = 17 A

17 A > circuit rating of 11.25 A - OK
17 A > 15 A breaker - OK
25 A terminal rating for 12 AWG > circuit rating of 11.25 A - OK
15 A breaker <= 20 A for 12 AWG - OK

What chart are you using for 12 AWG? This says 20A. http://www.cerrowire.com/ampacity-charts

[sensij]

2011 NEC Table 310.15 (b)(16)