Site

Location Map - NTS

AGNES SCOTT OBSERVATORY - SOLAR

220 E Hancock St, Decatur, GA 30030

Roof-Mounted Installation

6kW

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ELECTRICAL NOTESPV SYSTEM NOTES

ELECTRICAL REQUIREMENTS

MATERIALS AND METHODS

AS BUILT

DRAWINGS

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PV01

NOTES,

SCHEDULE

&

CALCULATIONS

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NUMBER

PV01

PV02

PV03a

PV04a

SHEET NAME

NOTES, SCHEDULE AND CALCULATIONS

LAYOUT

LAYOUT WITH WIRING - DC

SINGLE-LINE DIAGRAM AND ELECTRICAL PLAN

PV05 PRODUCT SPECIFICATION

PV06 BLANK

PV04b SIGNAGE DETAILS

DRAWING LIST

REVISION HISTORY

REVISION

NUMBER

DESCRIPTION

PV03b LAYOUT WITH WIRING - AC

PV07 BLANK

PV08 DETAILS

NUMBER SHEET NAME

DRAWING LIST (CONT)

- FOR CONSTRUCTION

A AS BUILT

32'-5"

OVERALL

22'-0 5/8"

PV ARRAY:

24 RENESOLA

250W MODULES

ROOF ACCESS

INVERTER AREA

TELESCOPE

EXISTING

PANELBOARD

EAST ROOF

WEST ROOF

60.09" TYP

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DRAWINGS

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PV02

LAYOUT

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SYSTEM LAYOUT

PLAN VIEW

A

NOTES:

1. LOCATIONS OF DISCONNECTS AND EQUIPMENT ARE APPROXIMATE;

THEY ARE SUBJECT TO ON-SITE REQUIREMENTS AND SHOWN HERE FOR

VISUAL CLARITY.

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Project:

AGNES SCOTT OBSERVATORY -

SOLAR

Address: 220 E Hancock St, Decatur, GA 30030

System Size:

6kW

MODULE: Renesola 250W

MODULE Qty:

24

Tilt:

Azimuth:

Mounting:

Roof-Mounted

ROOF ACCESS

TELESCOPE

A1-1 A2-12

A1-12

A2-1

AREA FOR INVERTERS

SEE PV-03b/B

EAST ROOF

WEST ROOF

SEE NOTE 1

AS BUILT

DRAWINGS

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PV03a

LAYOUT WITH

WIRING - DC

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LAYOUT WIRING - DCA

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NOTES:

1. EMT CONDUIT SUPPORTED BY SLEEPERS

LEGEND:

DC HOME RUNS: STRINGS TO

COMBINER BOXES

DC STRINGS

ROOF ACCESS

TELESCOPE

EXISTING

PANELBOARD

SEE DETAIL C

AREA FOR INVERTERS

SEE PV-03b/B

EAST ROOF

WEST ROOF

EXISTING PANELBOARD

FROM INVERTER THROUGH

BUILDING'S PENETRATION INTO

EXISTING PANELBOARD WITH

1" NM LIQUIDTIGHT

A

FROM MODULES' HOME RUNS

TO INVERTERS IN ONE 1" EMT

INVERTER

FROM INVERTER TO EXISTING

PANELBOARD IN 1" NM LIQUIDTIGHT

THROUGH PENETRATION

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PV03b

LAYOUT WITH

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EQUIPMENT MOUNTING - AC

EXISTING PANELBOARD

C

LEGEND:

RUN FROM INVERTER TO EXISTING

PANELBOARD

LAYOUT WIRING - ACA

EQUIPMENT MOUNTING - AC

INVERTER

B

"TYPE A" ARRAY

INVERTER A

1 CONDUIT SCHEDULE

MODULE WATTAGE 250W

TOTAL NUMBER OF STRINGS IN PARALLEL 2

NUMBER OF MODULES IN SERIES 12

TOTAL NUMBER OF INVERTERS 1

TOTAL NUMBER OF MODULES 24

TOTAL SYSTEM POWER @ STC (DC)

6kW

SYSTEM SUMMARY

TO UTILITY

3 - TYP

LEGEND:

COMPONENT

CONDUCTOR/ CONDUIT

SIGN - SEE PV 04b

#

#

#

PV MODULE ARRAY "TYPE A" - 1 INVERTER TOTAL

12 MODULES PER STRING

2 STRINGS PER INVERTER

250W MODULES

1 2 12

1 2 12

STRING #1

STRING #2

TYP- 1

EGC FROM RACKING AND MODULES

TO INVERTER GROUNDING STUD

ARRAY ON

EAST ROOF

WALL ON WEST ROOF

FACING NORTH - OUTSIDE

2b

2a2 - TYP

1 - TYP

TO

A

C C

OM

BIN

ER

L1

L2

N

G

TYP - 3

INVERTER A

1 & 3

2 2a

NO. ITEM PART NO. DESCRIPTION QTY

1 SOLAR MODULE JC250M-24/Bb RENESOLA 250W 24

2a DC DISCONNECT

SMA INTEGRAL

DC DISCONNECT

DC DISCONNECT; PART OF SMA INVERTER1

2b INVERTER

SMA SUNNYBOY

SB 6000TL-US-12

SMA 6KW - 1-PHASE INVERTER, 208V, NEMA 3R.1

3

EXISTING

PANELBOARD

AQF3301MBX

NAME: "L2A", FED BY SWBD "SL"

1

4 BREAKERS TBD ONE 2-POLE 40A BREAKER 1

COMPONENT SCHEDULE

ID

CONDUCTOR

TYPE AND SIZE

NUMBER OF

CONDUCTORS

NEUTRAL

SIZE

GROUND

SIZE

CONDUIT SIZE FROM TO

MAX

DISTANCE

(FT)

1

#10 AWG

PV WIRE CU

4 - #6 CU

FREE AIR , THEN ONE

1" EMT CONDUIT

MODULES

SMA

DISCONNECT

52

2*

#8 AWG

PV WIRE CU

L1,L2,N &GND#8 CU #8 CU

N/A INSIDE OF

INVERTER

SMA

DISCONNECT

INVERTER 2

3 #8 THWN-2 CU

3-WIRE

(2+N+GND)

#8 CU #8 CU

(1) 1" NM LIQUIDTIGHT

INVERTER

EXISTING

PANELBOARD

15

4

WALL ON WEST ROOF

INSIDE BUILDING

WALL ON WEST ROOF

FACING NORTH - OUTSIDE

EXISTING

PANELBOARD

3 4

*PROVIDED BY OTHERS

5 6

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PV04a

SINGLE LINE

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EQUIPMENT NOTES:

1. RED LABELS WITH WHITE LETTERS. "WARNING" SHALL BE 3/8" TALL.

ALL OTHER LETTERS SHALL BE 1/4" TALL.

INTERACTIVE POWER FLOWING

THROUGH THIS PANEL

4. LOAD CENTER (AC COMBINERS #1) PER NEC 690.17 AND 690.54

QUANTITY: 1

INVERTER A

WARNING!

BREAKER 26 & 28:

INVERTER OUTPUT CONNECTION

DO NOT RELOCATE THIS OVERCURRENT

DEVICE

5. AT EXISTING PANELBOARD PER SECTION 690.54, AND 705.12(D)(7)

WARNING!

DISCONNECT IS ENERGIZED FROM TWO

SOURCES: SOLAR SYSTEM AND UTILITY GRID

THE DISCONNECTING MEANS FOR THIS PHOTOVOLTAIC

SYSTEM IS AT THE SOLAR BREAKER LOCATED AT

PANELBOARD "L2A" ON THE OTHER SIDE OF THE WALL OF

THIS INVERTER

3 AT INVERTER PER SECTION 690.56(B) AND 690.54

QUANTITY: 1

BREAKERS 26 & 28 DISCONNECT THE PHOTOVOLTAIC

SYSTEM LOCATED ON THE ROOF OF THIS OBSERVATORY

ROOF; THE DC SOLAR POWER DISCONNECT IS LOCATED

AT INVERTER "A" ON THE OTHER SIDE OF THIS WALL -

OUTSIDE.

6. AT BREAKER PER SECTION 690.56(B)

MAX AC OUTPUT CURRENT = 25 A

NOMINAL AC VOLTAGE = 208 V

THIS PHOTOVOLTAIC SYSTEM INTERCONNECTS TO THE

ELECTRICAL GRID AT THE "L2A" EXISTING PANELBOARD.

WARNING!

ELECTRICAL SHOCK HAZARD

SOLAR PHOTOVOLTAIC COMBINING PANELBOARD

PANELBOARD CONTAINS BACKFED CIRCUIT BREAKERS

THAT MAY BE ENERGIZED IN THE OPEN POSITION

DO NOT CONNECT ADDITIONAL LOADS !

WARNING!

DC VOLTAGE IS ALWAYS PRESENT WHEN

MODULES ARE EXPOSED TO SUNLIGHT

MAXIMUM POWER-POINT CURRENT (Imp): 16.62A

MAXIMUM POWER-POINT VOLTAGE (Vmp): 361.2V

MAXIMUM SYSTEM VOLTAGE (Voc @Tmin): 497.3V

NEC MAXIMUM CURRENT (Isc x 1.25): 22.08A

WARNING

ELECTRIC SHOCK HAZARD

DO NOT TOUCH TERMINALS. TERMINALS ON

BOTH THE LINE AND LOAD SIDE MAY BE ENERGIZED

IN THE OPEN POSITION

2a LABEL PER SECTION 690.17(4), 690.53.

DC COMBINER A

TOTAL QUANTITY: 1

1 FOR INVERTER "A" .

1 TOTAL

MAX AC OUTPUT CURRENT = 25 A

NOMINAL AC VOLTAGE = 208 V

DC COMBINER A

2 FOR DC COMBINER "A".

1 TOTAL

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PV04b

SIGNAGE

DETAILS

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PV05

PRODUCT

SPECIFICATIONS

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NEGATIVE

CONDUCTOR

TOCOMBINER BOX

POSITIVE

CONDUCTOR

TOCOMBINER BOX

MODULES CONNECTED IN SERIES:

MALE TO FEMALE

SEE NOTE 3

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DRAWINGS

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PV08

DETAILS

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NOTES:

1. READ PANEL CLAW'S POLAR BEAR III SYSTEM ASSEMBLY INSTRUCTIONS

AND PANEL CLAW'S DRAWINGS FOR THE MANUFACTURER'S

INSTRUCTIONS ON RACKING AND GROUNDING. SEE RACKING

EQUIPMENT GROUNDING LAYOUT ON PV03a.

2. GROUND LUG LOCATED IN HOLE OF BALLAST TRAY SPECIFICALLY

DESIGNATED FOR GROUNDING AND MARKED "GND".

3. MODULES SHALL BE WIRED FROM POSITIVE TO NEGATIVE IN SERIES, IN

THE ORDER DEPICTED ON PV03a, AND WITH THE APPROPRIATE WIRING

METHODS AS STATED ON NEC 690 SECTION IV.

GROUNDING

RACKING - SEE NOTE 1

A MODULE WIRING

SERIES WIRING METHOD

B

SEE NOTE 2