BLD2021-0509_Site_Plan_4.8.2021_3.01.38_PM_2135749Wire
Conductor
Neutral
Ground
Raceway
Raceway
Raceway
Height Above
Output
125% of
Output
Min.
Wire De -Rate Calculation
Dist.
Voltage
Voltage
Conduit
Wire
Ambient
# of
Final
Tag
Qty. Size & Type
Qty. Size & Type
Qty., Size & Type
Size & Type
Location
Roof
Current
Current
OCPD
Rating
I Temp
Cond.
Ampacity
(Ft)
Drop %
Fill %
AC.1
(4) #10 AWG THWN-2
(1) #10 AWG THWN-2
3/4" EMT Conduit
Above Roof
1"To 3-1/2"
13A
16.3A
20A
35A X 1 X 0.8 = 28A
20 Ft.
240V
0.27%
19.8%
AC.2
(2) #8 AWG THWN-2
(1) #8 AWG THWN-2
(1) #8 AWG THWN-2
3/4" EMT Conduit
Exterior Wall
"N/A"
27.5A
34.4A
35A
50A X 1 X 1 = 50A
5 Ft.
240V
0.09%
27.5%
PV Module 1
Micro-Inverterl
Enphase Combiner Box 1
AC Disconnect #1
Main Service Panel 1
(19) Solaria
(19) Enphase
Existing or New:
(N) "PV Dedicated"
60A Utility AC Disconnect #1,
Existing 200A MSP, Top -Fed
PowerXT 40OR-PM BLK
IQ7A-72-2-US (240V)
Rating:
80A ECB, Main -Lug Only
2 Pole, Knife -Blade Type,
10, 3W, 120/240V
Power at STC: 40OW
Max V-oc Input: 58V
Monitoring Breaker 1
(N) 10A, 2 Pole
240V, Lockable, Visible, Rated
Utility: Snohomish PUD
Power at PTC: 369.99W
Max Output Current: 1.45A (Each)
PV Breaker 1
(N) 20A, 2 Pole
NEMA 3R
Interconnection: PV Breaker
V-oc: 51.1V V-mp: 42.4V
Max Number Per Branch: 11
PV Breaker 2
(N) 20A, 2 Pole
Main Breaker De-Rated:No
I-sc:9.82A 1-mp:9.41A
Total
40A
V-oc Temp Coefficient:-0.29%/°C
Branch Circuit 1 (9 Enphase IQ7A-72-2-US (240V))
Output (I-sc x 1.25 x 1.25): 15.3A
(9 Qty. X 1.45A X 1.25) = 16.3125A (20A OCPD)
Branch Circuit 2 (10 Enphase IQ7A-72-2-US (240V))
(10 Qty. X 1.45A X 1.25) = 18.125A (20A OCPD)
SNOHOMISH PUD UTILITY
1 Phase / 60 Hz.
OF
Z,
Y
U
aS
>i
aL
ELECTRODE
PER NEC 705.12
Main Panel Interconnection Information
Bus Bar 1 Rating: 200A
Main Breaker 1 Rating: 200A
PV Back Feed (Actual Load): 34.4375A
PV OCPD: 35A
Interconnection Calculation: 120% Rule
(35A + 200A) = 235A (<=) 240A
Three Line Diagram
1 Scale: NTS
Ambient Temperature Information
Extreme Min Temp:
Ambient Temp:
-5°C
26°C
Ambient Temp. Adjustments
0" to 7/8" Above Roof:
59°C
Voltage Drop Information
AC Voltage Drop:
Total System Voltage Drop:
0.36%
0.36%
ID#
Z
O
Q
O
ILL
Z
Iz
O
I—
U
Q
Z
O
Z
O
Q
O
ILL
2
W
U0
O m
00
v
J vr�n 00 00
J
N 00 00
Q Ol 0 LLI
O U1 >Q �1 J
C7 > > l" O
Q
H N N N
00 ar
LAV
U
N v
Lu
J
pp O
N
ua�
Lf) Cr
O N
O
n
to
-r Q
O o Or
�aLA
Y •�
l0 N Q
(° W
O O O
LL d O O
Z co
-a Ol ~O
2 3 O
W MUD
r, c O
p °N ° #
2 N ;
w z
Q.
� Q
REVISION BLOCK
DESCRIPTION DATE
Initial Draft of Plans 4/5/21
Revision 4/7/21
Design By: CNG SOLAR ENGINEERING, INC.
SHEET
PV INSTALLATION PV-4.1
PROFESSIONAL