210.11 (B) and 480.3 (E)

[david]

I always see figure three on electrical plans and I always see electricians use figure one when identifying the circuit # to the phase arrangement in the field

Has anyone ever used figure two for either circuit layout or panel labeling?

Is figure one or figure two correct?

 

[david]

sorry the attachments are to small and I don't know how to increase the size here

I try and post this again some other time
they wouldn't upload as word doc.

 

[david]

I try increasing figure one and two see if this works

 

[david]

I was typing to fast and the reference should be Article 408.3 E not 480 (2008 NFPA 70)
When using I line panels do you use figure two in laying out your circuits, or do you use figure one.

If you use figure one do you label the right side of the panel going from top to bottom 1-3-5??41
And the left side 2-4-6-??42
Or do you label the right side 1-3-5- ??.41 and the left side 42-40-38 ???.2 going from top to bottom.

I never see an engineer use anything but figure three when calling out circuit arrangement and balancing the loads in a panel
If it s a standard panel or an I line panel the engineers always seem to balance their loads with circuit 1 and circuit 2 connected to A phase and the drawings always use figure three to depict that arrangement on the plans

 

[david]

Is there any other way to use a standard circuit numbering system for labeling circuits for I line panels?
A- Phase 1 -7 -13-19-25-31-37- A Phase-2-8-14-20-26-32-38
B- Phase 3-9-15-21-27-33-39- B Phase-4-10-16-22-28-34-40
C- Phase 5-11-17-23-29-35-41 C Phase -6-12-18-24-30-36-42



Standard Panel Numbering
1 (A Phase) 2 (A Phase)
3 (B Phase) 4 (B Phase)
5 (C Phase) 6 (C Phase)
7(A Phase) 8 (A Phase)
9(B Phase) 10 (B Phase)
11(C Phase) 12 (C Phase)
13(A Phase) 14 (A Phase)
15(B Phase) 16 (B Phase)
17 (C Phase) 18 (C Phase)
19(A Phase) 20 (A Phase)
21(B Phase) 22 (B Phase)
23 (C Phase) 24 (C Phase)
25(A Phase) 26 (A Phase)
27(B Phase) 28 (B Phase)
29 (C Phase) 30 (C Phase)
31(A Phase) 32 (A Phase)
33(B Phase) 34 (B Phase)
35 (C Phase) 36 (C Phase)
37(A Phase) 38 (A Phase)
39 (B Phase) 40 (B Phase)
41 (C Phase) 42 (C Phase

I line Panel Numbering
1 (A Phase) 2 (C Phase)
3 (B Phase) 4 (B Phase)
5 (C Phase) 6 (A Phase)
7(A Phase) 8 (C Phase)
9(B Phase) 10 (B Phase)
11(C Phase) 12 A Phase)
13(A Phase) 14 (C Phase)
15(B Phase) 16 (B Phase)
17 (C Phase) 18 (A Phase)
19(A Phase) 20(C Phase)
21(B Phase) 22(B Phase)
23 (C Phase) 24 (A Phase)
25(A Phase) 26(C Phase)
27(B Phase) 28(B Phase)
29 (C Phase) 30 (A Phase)
31(A Phase) 32(C Phase)
33(B Phase) 34(B Phase)
35 (C Phase) 36 (A Phase)
37(A Phase) 38(C Phase)
39 (B Phase) 40(B Phase)
41 (C Phase) 42 (A Phase)


(0r) I line Panel Numbering
With standard circuit labeling
1 (A Phase) 42(C Phase)
3 (B Phase) 40(B Phase)
5 (C Phase) 38 (A Phase)
7(A Phase) 36 (C Phase)
9(B Phase) 34 (B Phase)
11(C Phase) 32 A Phase)
13(A Phase) 30 (C Phase)
15(B Phase) 28(B Phase)
17 (C Phase) 26 (A Phase)
19(A Phase) 24(C Phase)
21(B Phase) 22(B Phase)
23 (C Phase) 20(A Phase)
25(A Phase) 18(C Phase)
27(B Phase) 16(B Phase)
29 (C Phase) 14 (A Phase)
31(A Phase) 12(C Phase)
33(B Phase) 10(B Phase)
35 (C Phase) 8(A Phase)
37(A Phase) 6(C Phase)
39 (B Phase) 4(B Phase)
41 (C Phase) 2 (A Phase)