HomeMy WebLinkAbout3702 S Alder St - Plan10/21/2021
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Sheet
1
T-01
SHEET INDEX
T-01 TITLE SHEET
PV.01 SITE PLAN
PV.02 ROOF PLAN
PV.03 SINGLE LINE DIAGRAM
PV.04 WARNING LABELS & SIGNAGE
PV.05 RACKING AND ATTACHMENTS
PV.06 PV MODULE DATA SHEET
PV.07 INVERTER DATA SHEET
PV.08 RAPID SHUTDOWN DATA SHEET
PV.09 UL
PV.010 GROUNDING
GENERAL NOTES:
x All electrical equipment shall be labeled, listed, or certified by a Nationally Recognized Testing Laboratory accredited by the United
States Occupational Safety Health Administration.
x Local Utility provider shall be notified prior to use and activation of any solar photovoltaic installation.
x The System will not be interconnected until approval from the local jurisdiction and utility is obtained.
x A ladder shall be in place for the inspection in compliance with CAL-OSHA Regulations.
x Proper access and working clearance shall be provided as per section 110.26 CEC.
x PV equipment, systems, and all associated wiring and interconnections shall only be installed by qualified persons.
x All outdoor equipment shall be minimum NEMA 3R rated, including all roof mounted transition boxes and switches.
x All exterior conduit, fittings, and boxes shall be rain tight and approved for use in wet locations.
x All conductors exposed to weather shall be listed and identified for use in direct sunlight.
x The module conductors must be type USE-2 or listed for Photovoltaic (PV) Wire (UL 4703 & 854 Listed).
x All conductors must be copper and 90° Rated.
x All equipment shall be properly grounded and bonded in accordance with NEC Article 250.
x All applicable PV equipment listed and compliant with UL2703 and UL1703.
x All NEC required warning signs, markings, and labels shall be posted on equipment and disconnects.
x All circuits connected to more than one source shall have over current devices located so as to provide over current protections from
all sources.
x The PV Power source circuit breaker shall be located at the opposite end of the main service disconnect.
x Flexible, fine-stranded cables shall be terminated only with terminals, lugs, devices, or connectors that are identified and listed for such
use.
x Connectors shall be of latching or locking type. Connectors that are readily accessible and operating over 300 volts shall require a tool
to open and shall me marked "Do Not Disconnect under load".
x The roof mounted photovoltaic modules, panels, or solar photovoltaic roll roofing material shall have the same or better listed
fire-resistance rating than the building roof-covering material.
x Smoke alarms and carbon monoxide alarms are required to be retrofitted onto the existing dwelling as per the 2016 CRC. These
smoke alarms are required to be in all bedrooms, outside each bedroom, and a least one on each floor of the house.
x Smoke alarms and carbon monoxide alarms are to be verified and inspected by the IHE inspector in the field.
CONTRACTOR INFORMATION
CONTRACTOR Equisolar, Inc
ADDRESS
16530 Ventura Blvd Suite 104
Encino, CA 91436
PHONE 818.784.2300
CSLB 1006535; Gen-B
2
T-01
CLIENT INFORMATION
HOMEOWNER PRAXEDIS, CANDIDO & PRISCA
ADDRESS
3702 ALDER STREET,
SANTA ANA, CA 92707
PHONE ---
10/22/2021
VSE Project Number: U2880-1484-211 Vector Structural Engineering has reviewed the
existing structure with loading from the solar
array and screw connections to the existing
framing. The design of the racking system,
racking connections, and all other structural is
by others. Mechanical, architectural, and all
other nonstructural aspects of the design are by
others. Electrical is by others, unless stamped
by Dean Levorsen.
Permit #101108485 (Bldg) & 20174689 (Elect)
Issued on 11/05/2021
3702 S Alder St
11/05/21
Expedited Permit Process for PV Systems1
Expedited Permit Process for PV Systems
Standard String System
The Solar America Board for Codes and Standards (Solar ABCs) Expedited Permit Pro-
cess provides a means to differentiate systems that can be permitted quickly and easily
due to their similarity with the majority of small-scale PV systems. Those systems with
unique characteristics may be handled with small additions to this Expedited Permit
Process or may require much more information, depending on the uniqueness of the
installation.
The following pages contain forms for the Standard String System to use with the Expe-
dited Permit Process. The Micro-Inverter, AC Module, and Supply-Side Connection forms
are also available as interactive PDF files at www.solarabcs.org/permitting. In jurisdic-
tions that have adopted the Expedited Permit Process for PV Systems, these forms can
be filled out electronically and submitted in either printed form and via email. An elec-
tronic format is used so that the supplied information is standardized and legible for the
local jurisdiction.
3702 S Alder St
11/05/21
Expedited Permit Process for PV Systems2
Expedited Permit Process for Small-Scale PV Systems
Standard String System
The information in this guideline is intended to help local jurisdictions and contractors identify when PV system installations
are simple, needing only a basic review, and when an installation is more complex. It is likely that 50%-75% of all residential
systems will comply with these simple criteria. For projects that fail to meet the simple criteria, resolution steps have been
suggested to provide as a path to permit approval.
Required Information for Permit:
1. Site plan showing location of major components on the property. This drawing need not be exactly to scale, but it
should represent relative location of components at site (see supplied example site plan). PV arrays on dwellings
with a 3’ perimeter space at ridge and sides may not need separate fire service review.
2. Electrical diagram showing PV array configuration, wiring system, overcurrent protection, inverter, disconnects,
required signs, and ac connection to building (see supplied standard electrical diagram).
3. Specification sheets and installation manuals (if available) for all manufactured components including, but not
limited to, PV modules, inverter(s), combiner box, disconnects, and mounting system.
Step 1: Structural Review of PV Array Mounting System
Is the array to be mounted on a defined, permitted roof structure? l Yes l No
If No due to non-compliant roof or a ground mount, submit completed worksheet for the structure WKS1.
Roof Information:
1. Is the roofing type lightweight (Yes = composition, lightweight masonry, metal, etc…)__________________________
____________________________________________________________________________________________________
If No, submit completed worksheet for roof structure WKS1 (No = heavy masonry, slate, etc…).
2. Does the roof have a single roof covering? l Yes l No
If No, submit completed worksheet for roof structure WKS1.
3. Provide method and type of weatherproofing roof penetrations (e.g. flashing, caulk).____________________________
Mounting System Information:
1. Is the mounting structure an engineered product designed to mount PV modules with no more than an 18” gap
beneath the module frames? l Yes l No
If No, provide details of structural attachment certified by a design professional.
2. For manufactured mounting systems, fill out information on the mounting system below:
a. Mounting System Manufacturer ___________Product Name and Model#________________________________
b. Total Weight of PV Modules and Rails ___________lbs
c. Total Number of Attachment Points____________
d. Weight per Attachment Point (b÷c)_________________lbs (if greater than 45 lbs, see WKS1)
e. Maximum Spacing Between Attachment Points on a Rail ______________inches (see product manual for
maximum spacing allowed based on maximum design wind speed)
f. Total Surface Area of PV Modules (square feet)_________________ ft 2
g. Distributed Weight of PV Module on Roof (b÷f)_______________ lbs/ft2
If distributed weight of the PV system is greater than 5 lbs/ft2, see WKS1.
Step 2: Electrical Review of PV System (Calculations for Electrical Diagram)
In order for a PV system to be considered for an expedited permit process, the following must apply:
1. PV modules, utility-interactive inverters, and combiner boxes are identified for use in PV systems.
2. The PV array is composed of 4 series strings or less per inverter.
3. The total inverter capacity has a continuous ac power output 13,440 Watts or less
4. The ac interconnection point is on the load side of service disconnecting means (690.64(B)).
5. One of the standard electrical diagrams (E1.1, E1.1a, E1.1b, or E1.1c) can be used to accurately represent the PV
system. Interactive PDF diagrams are available at www.solarabcs.org/permitting.
Fill out the standard electrical diagram completely. A guide to the electrical diagram is provided to help the applicant
understand each blank to fill in. If the electrical system is more complex than the standard electrical diagram can effectively
communicate, provide an alternative diagram with appropriate detail.
YES
FLASHING WITH CAULK
IRONRIDGE FLASHFOOT2 WITH XR10 RAIL
1021.70
34
30.05
48
380.66
2.68
3702 S Alder St
11/05/21
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Standard String System Site Plan
PRAXEDIS RESIDENCE
3702 ALDER STREET
6kW
EQUISOLAR, INC
16530 VENTURA BLVD
SUITE 104
ENCINO, CA 91436
CM
11.4.2021
3702 S Alder St
11/05/21
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Standard String System Electrical Diagram
JINKO: JKM400M-72HL-V
JINKO: JKM400M-72HL-V
INVERTER INTEGRATED
SE6000H-US
SQUARE D: DU222RB
240 200 200 35
HUBBELL
9
8
N/A
N/A
3702 S Alder St
11/05/21
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Notes for Standard String System Electrical Diagram
Contractor Name,
Address and Phone:
_________________
_________________
_________________
_________________
Notes for One-Line Standard Electrical
Diagram for Single-Phase PV Systems
Site Name: __________________________
Site Address: ________________________
System AC Size: ______________________
SIZE FSCM NO DWG NO REV
SCALE NTS Date: SHEET
Drawn By:
Checked By:
MAX POWER-POINT CURRENT (IMP)
MAX POWER-POINT VOLTAGE (VMP)
OPEN-CIRCUIT VOLTAGE (VOC)
SHORT-CIRCUIT CURRENT (ISC)
MAX SERIES FUSE (OCPD)
MAXIMUM POWER (PMAX)
MAX VOLTAGE (TYP 600VDC)
VOC TEMP COEFF (mV/oC or %/oC )
IF COEFF SUPPLIED, CIRCLE UNITS
A
V
V
A
A
W
V
MODULE MAKE
MODULE MODEL
PV MODULE RATINGS @ STC (Guide Section 5)
MAX DC VOLT RATING
MAX POWER @ 40oC
NOMINAL AC VOLTAGE
MAX AC CURRENT
MAX OCPD RATING
V
W
V
A
A
INVERTER MAKE
INVERTER MODEL
INVERTER RATINGS (Guide Section 4)
1) IF UTILITY REQUIRES A VISIBLE-BREAK SWITCH, DOES THIS SWITCH MEET THE
REQUIREMENT? YES NO N/A
2) IF GENERATION METER REQUIRED, DOES THIS METER SOCKET MEET THE
REQUIREMENT? YES NO N/A
3) SIZE PHOTOVOLTAIC POWER SOURCE (DC) CONDUCTORS BASED ON MAX
CURRENT ON NEC 690.53 SIGN OR OCPD RATING AT DISCONNECT
4) SIZE INVERTER OUTPUT CIRCUIT (AC) CONDUCTORS ACCORDING TO INVERTER
OCPD AMPERE RATING. (See Guide Section 9)
5) TOTAL OF ______ INVERTER OCPD(s), ONE FOR EACH INVERTER. DOES TOTAL
SUPPLY BREAKERS COMPLY WITH 120% BUSBAR EXCEPTION IN 690.64(B)(2)(a)?
YES NO
NOTES FOR INVERTER CIRCUITS (Guide Section 8 and 9):
1.) LOWEST EXPECT AMBIENT TEMPERATURE BASED ON ASHRAE MINIMUM MEAN
EXTREME DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TO
INSTALLATION LOCATION. LOWEST EXPECTED AMBIENT TEMP ______oC
2.) HIGHEST CONTINUOUS AMBIENT TEMPERATURE BASED ON ASHRAE HIGHEST
MONTH 2% DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TO
INSTALLATION LOCATION. HIGHEST CONTINUOUS TEMPERATURE _____oC
2.) 2005 ASHRAE FUNDEMENTALS 2% DESIGN TEMPERATURES DO NOT EXCEED
47oC IN THE UNITED STATES (PALM SPRINGS, CA IS 44.1 oC). FOR LESS THAN 9
CURRENT-CARRYING CONDUCTORS IN ROOF-MOUNTED SUNLIT CONDUIT AT
LEAST 0.5" ABOVE ROOF AND USING THE OUTDOOR DESIGN TEMPERATURE OF
47oC OR LESS (ALL OF UNITED STATES),
a) 12 AWG, 90oC CONDUCTORS ARE GENERALLY ACCEPTABLE FOR MODULES
WITH Isc OF 7.68 AMPS OR LESS WHEN PROTECTED BY A 12-AMP OR SMALLER
FUSE.
b) 10 AWG, 90oC CONDUCTORS ARE GENERALLY ACCEPTABLE FOR MODULES
WITH Isc OF 9.6 AMPS OR LESS WHEN PROTECTED BY A 15-AMP OR SMALLER
FUSE.
NOTES FOR ARRAY CIRCUIT WIRING (Guide Section 6 and 8 and Appendix D):
OCPD = OVERCURRENT PROTECTION DEVICE
NATIONAL ELECTRICAL CODE ® REFERENCES
SHOWN AS (NEC XXX.XX)
NOTES FOR ALL DRAWINGS:
SIGNSSEE GUIDE SECTION 7
SIGN FOR DC DISCONNECT
SIGN FOR INVERTER OCPD AND
AC DISCONNECT (IF USED)
RATED MPP CURRENT
RATED MPP VOLTAGE
MAX SYSTEM VOLTAGE
MAX CIRCUIT CURRENT
A
V
V
A
PHOTOVOLTAIC POWER SOURCE
WARNING: ELECTRICAL SHOCK
HAZARDLINE AND LOAD MAY BE
ENERGIZED IN OPEN POSITION
AC OUTPUT CURRENT
NOMINAL AC VOLTAGE
A
V
SOLAR PV SYSTEM
AC POINT OF CONNECTION
THIS PANEL FED BY MULTIPLE
SOURCES (UTILITY AND SOLAR)
3702 S Alder St
11/05/21
Rev: 7/15/2021
RESIDENTIAL
PHOTOVOLTAIC
CHECKLIST
SOL-01 CBC 2019
Solar Photovoltaic (PV) Checklist for Detached SINGLE FAMILY RESIDENCES Only
Instructions: The licensed contractor of record shall complete all sections, answer the ten questions and
sign the certification section below. A copy of this form shall be attached to each of TWO sets of plans, of
minimum 11” x 17” size. If answering NO to any of the questions, plan check shall be required.
Project Address:
Contractor Company Name:
Contractor License Number:
YES NO Are the following applicable to the proposed project?
1. Will the PV system layout provide the required three-foot wide clear access pathways
per Section 605.11 of the California Fire Code, and is this shown on the roof plan?
2. Will the PV system be installed on a roof having only one roofing layer with no
overlays?
3. Will the PV array be flush mounted to the existing roof so that the plane of the
modules (panels) are parallel to the plane of the roof?
4. Will the PV system weigh maximum 4 pounds per square feet or less?
5. Will the PV system be installed where the modules do not overhang any roof edges
(such as eaves, gabled ends, ridges and hips)?
6. Will the PV system be installed with a space of 2” minimum to 10” maximum between
the underside of modules and the surface of the roof?
7. Will the PV system be installed without using any ballast system or counter-weight
system?
8. Will the anchors be installed with a maximum horizontal anchor spacing of 6 feet
and is this maximum horizontal spacing shown on the plans?
9. Will the minimum 5/16” lag screws be installed with a minimum of 2-1/2 inch
embedment into roof rafters (with pre-drilled holes) and is this minimum embedment
shown on the plans?
10. Are ALL the structural pages of the plans stamped and signed by a California
licensed professional engineer? (including project specific site plan, PV layout,
anchorage spacing, anchorage details and manufacturer’s PV support information.)
I certify under penalty of perjury under the laws of the State of California that the above is true:
Print Name: Signature:
Phone Number: Date:
Email Address:
Planning & Building Agency
Building Safety Division
20 Civic Center Plaza
P.O. Box 1988 (M-19)
Santa Ana, CA 92702
(714) 647-5800
www.santa-ana.org
3702 Alder Street, Santa Ana, California 92707
EQUISOLAR INC
1006535
Jennifer Gorre
818-784-2300
jeniffer@equisolar.com
03NOVEMBER2021
3702 S Alder St
11/05/21
Expedited Permit Process for PV Systems 1
Expedited Permit Process for PV Systems
Standard String System
The Solar America Board for Codes and Standards (Solar ABCs) Expedited Permit Pro-
cess provides a means to differentiate systems that can be permitted quickly and easily
due to their similarity with the majority of small-scale PV systems. Those systems with
unique characteristics may be handled with small additions to this Expedited Permit
Process or may require much more information, depending on the uniqueness of the
installation.
The following pages contain forms for the Standard String System to use with the Expe-
dited Permit Process. The Micro-Inverter, AC Module, and Supply-Side Connection forms
are also available as interactive PDF files at www.solarabcs.org/permitting. In jurisdic-
tions that have adopted the Expedited Permit Process for PV Systems, these forms can
be filled out electronically and submitted in either printed form and via email. An elec-
tronic format is used so that the supplied information is standardized and legible for the
local jurisdiction.
3702 S Alder St- DL
1/23/2024
Expedited Permit Process for PV Systems 2
Expedited Permit Process for Small-Scale PV Systems
Standard String System
The information in this guideline is intended to help local jurisdictions and contractors identify when PV system installations
are simple, needing only a basic review, and when an installation is more complex. It is likely that 50%-75% of all residential
systems will comply with these simple criteria. For projects that fail to meet the simple criteria, resolution steps have been
suggested to provide as a path to permit approval.
Required Information for Permit:
1.Site plan showing location of major components on the property. This drawing need not be exactly to scale, but it
should represent relative location of components at site (see supplied example site plan). PV arrays on dwellings
with a 3’ perimeter space at ridge and sides may not need separate fire service review.
2.Electrical diagram showing PV array configuration, wiring system, overcurrent protection, inverter, disconnects,
required signs, and ac connection to building (see supplied standard electrical diagram).
3.Specification sheets and installation manuals (if available) for all manufactured components including, but not
limited to, PV modules, inverter(s), combiner box, disconnects, and mounting system.
Step 1: Structural Review of PV Array Mounting System
Is the array to be mounted on a defined, permitted roof structure? l Yes l No
If No due to non-compliant roof or a ground mount, submit completed worksheet for the structure WKS1.
Roof Information:
1.Is the roofing type lightweight (Yes = composition, lightweight masonry, metal, etc…)__________________________
____________________________________________________________________________________________________
If No, submit completed worksheet for roof structure WKS1 (No = heavy masonry, slate, etc…).
2.Does the roof have a single roof covering?l Yes l No
If No, submit completed worksheet for roof structure WKS1.
3.Provide method and type of weatherproofing roof penetrations (e.g. flashing, caulk).____________________________
Mounting System Information:
1.Is the mounting structure an engineered product designed to mount PV modules with no more than an 18” gap
beneath the module frames?l Yes l No
If No, provide details of structural attachment certified by a design professional.
2.For manufactured mounting systems, fill out information on the mounting system below:
a.Mounting System Manufacturer ___________Product Name and Model#________________________________
b.Total Weight of PV Modules and Rails ___________lbs
c.Total Number of Attachment Points____________
d.Weight per Attachment Point (b÷c)_________________lbs (if greater than 45 lbs, see WKS1)
e.Maximum Spacing Between Attachment Points on a Rail ______________inches (see product manual for
maximum spacing allowed based on maximum design wind speed)
f.Total Surface Area of PV Modules (square feet)_________________ ft2
g.Distributed Weight of PV Module on Roof (b÷f)_______________ lbs/ft2
If distributed weight of the PV system is greater than 5 lbs/ft2, see WKS1.
Step 2: Electrical Review of PV System (Calculations for Electrical Diagram)
In order for a PV system to be considered for an expedited permit process, the following must apply:
1.PV modules, utility-interactive inverters, and combiner boxes are identified for use in PV systems.
2.The PV array is composed of 4 series strings or less per inverter.
3.The total inverter capacity has a continuous ac power output 13,440 Watts or less
4.The ac interconnection point is on the load side of service disconnecting means (690.64(B)).
5.One of the standard electrical diagrams (E1.1, E1.1a, E1.1b, or E1.1c) can be used to accurately represent the PV
system. Interactive PDF diagrams are available at www.solarabcs.org/permitting.
Fill out the standard electrical diagram completely. A guide to the electrical diagram is provided to help the applicant
understand each blank to fill in. If the electrical system is more complex than the standard electrical diagram can effectively
communicate, provide an alternative diagram with appropriate detail.
YES
FLASHING WITH CAULK
IRONRIDGE FLASHFOOT2 WITH XR10 RAIL
1021.70
34
30.05
48
380.66
2.68
3702 S Alder St- DL
1/23/2024
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Standard String System Site Plan
PRAXEDIS RESIDENCE
3702 ALDER STREET
6kW
EQUISOLAR, INC
16530 VENTURA BLVD
SUITE 104
ENCINO, CA 91436
CM
11.4.2021
3702 S Alder St- DL
1/23/2024
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Standard String System Electrical Diagram
JINKO: JKM400M-72HL-V
JINKO: JKM400M-72HL-V
INVERTER INTEGRATED
SE6000H-US
SQUARE D: DU222RB
240 200 200 35
HUBBELL
9
8
N/A
N/A
3702 S Alder St- DL
1/23/2024
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Notes for Standard String System Electrical Diagram
Contractor Name,
Address and Phone:
_________________
_________________
_________________
_________________
Notes for One-Line Standard Electrical
Diagram for Single-Phase PV Systems
Site Name: __________________________
Site Address: ________________________
System AC Size: ______________________
SIZE FSCM NO DWG NO REV
SCALE NTS Date:SHEET
Drawn By:
Checked By:
MAX POWER-POINT CURRENT (IMP)
MAX POWER-POINT VOLTAGE (VMP)
OPEN-CIRCUIT VOLTAGE (VOC)
SHORT-CIRCUIT CURRENT (ISC)
MAX SERIES FUSE (OCPD)
MAXIMUM POWER (PMAX)
MAX VOLTAGE (TYP 600VDC)
VOC TEMP COEFF (mV/oC or %/oC )
IF COEFF SUPPLIED, CIRCLE UNITS
A
V
V
A
A
W
V
MODULE MAKE
MODULE MODEL
PV MODULE RATINGS @ STC (Guide Section 5)
MAX DC VOLT RATING
MAX POWER @ 40oC
NOMINAL AC VOLTAGE
MAX AC CURRENT
MAX OCPD RATING
V
W
V
A
A
INVERTER MAKE
INVERTER MODEL
INVERTER RATINGS (Guide Section 4)
1) IF UTILITY REQUIRES A VISIBLE-BREAK SWITCH, DOES THIS SWITCH MEET THEREQUIREMENT? YES NO N/A
2) IF GENERATION METER REQUIRED, DOES THIS METER SOCKET MEET THEREQUIREMENT? YES NO N/A
3) SIZE PHOTOVOLTAIC POWER SOURCE (DC) CONDUCTORS BASED ON MAXCURRENT ON NEC 690.53 SIGN OR OCPD RATING AT DISCONNECT
4) SIZE INVERTER OUTPUT CIRCUIT (AC) CONDUCTORS ACCORDING TO INVERTEROCPD AMPERE RATING. (See Guide Section 9)
5) TOTAL OF ______ INVERTER OCPD(s), ONE FOR EACH INVERTER. DOES TOTALSUPPLY BREAKERS COMPLY WITH 120% BUSBAR EXCEPTION IN 690.64(B)(2)(a)?YES NO
NOTES FOR INVERTER CIRCUITS (Guide Section 8 and 9):
1.) LOWEST EXPECT AMBIENT TEMPERATURE BASED ON ASHRAE MINIMUM MEANEXTREME DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TOINSTALLATION LOCATION. LOWEST EXPECTED AMBIENT TEMP ______oC
2.) HIGHEST CONTINUOUS AMBIENT TEMPERATURE BASED ON ASHRAE HIGHESTMONTH 2% DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TOINSTALLATION LOCATION. HIGHEST CONTINUOUS TEMPERATURE _____oC
2.) 2005 ASHRAE FUNDEMENTALS 2% DESIGN TEMPERATURES DO NOT EXCEED47oC IN THE UNITED STATES (PALM SPRINGS, CA IS 44.1oC). FOR LESS THAN 9CURRENT-CARRYING CONDUCTORS IN ROOF-MOUNTED SUNLIT CONDUIT ATLEAST 0.5" ABOVE ROOF AND USING THE OUTDOOR DESIGN TEMPERATURE OF47oC OR LESS (ALL OF UNITED STATES),
a) 12 AWG, 90oC CONDUCTORS ARE GENERALLY ACCEPTABLE FOR MODULESWITH Isc OF 7.68 AMPS OR LESS WHEN PROTECTED BY A 12-AMP OR SMALLERFUSE. b) 10 AWG, 90oC CONDUCTORS ARE GENERALLY ACCEPTABLE FOR MODULESWITH Isc OF 9.6 AMPS OR LESS WHEN PROTECTED BY A 15-AMP OR SMALLERFUSE.
NOTES FOR ARRAY CIRCUIT WIRING (Guide Section 6 and 8 and Appendix D):
OCPD = OVERCURRENT PROTECTION DEVICE
NATIONAL ELECTRICAL CODE® REFERENCES
SHOWN AS (NEC XXX.XX)
NOTES FOR ALL DRAWINGS:
SIGNS–SEE GUIDE SECTION 7
SIGN FOR DC DISCONNECT
SIGN FOR INVERTER OCPD AND
AC DISCONNECT (IF USED)
RATED MPP CURRENT
RATED MPP VOLTAGE
MAX SYSTEM VOLTAGE
MAX CIRCUIT CURRENT
A
V
V
A
PHOTOVOLTAIC POWER SOURCE
WARNING: ELECTRICAL SHOCK
HAZARD–LINE AND LOAD MAY BE
ENERGIZED IN OPEN POSITION
AC OUTPUT CURRENT
NOMINAL AC VOLTAGE
A
V
SOLAR PV SYSTEM
AC POINT OF CONNECTION
THIS PANEL FED BY MULTIPLE
SOURCES (UTILITY AND SOLAR)
3702 S Alder St- DL
1/23/2024
VSE Project Number: U2880.1484.211
October 25, 2021
Equisolar
16530 Ventura Blvd Suite 102
Encino, CA 91436
REFERENCE: Praxedis, Candido & Prisca Residence: 3702 Alder Street, Santa Ana, CA 92707
Equisolar Project: 3223
Solar Array Installation
To Whom It May Concern:
Per your request, we have reviewed the existing structure at the above referenced site. The purpose of our review was to
determine the adequacy of the existing structure to support the proposed installation of solar panels on the roof as shown on
the panel layout plan.
Based upon our review, we conclude that the existing structure is adequate to support the proposed solar panel installation.
Design Parameters
Code: California Building Code, 2019 Edition (2018 IBC)
Risk Category: II
Design wind speed, Vult: 95 mph (3-sec gust) per ASCE 7-16
Wind exposure category: C
Seismic design category: D
Existing Roof Structure
Roof structure: 2x6 rafters @ 24" o.c.
Roofing material: composite shingles
Roof slope: 18.5°
Connection to Roof
Mounting connection: (1) 5/16" lag screw w/ min. 2.5" threaded embedment into framing at max. 48" o.c. along rails
(2) rails per row of panels, evenly spaced; panel length perpendicular to the rails not to exceed 80 in. Rail cantilever shall
not exceed 50% of connection spacing.
Conclusions
Based upon our review, we conclude that the existing structure is adequate to support the proposed solar panel installation.
In the area of the solar array, other live loads will not be present or will be greatly reduced (2019 CBC, Section 1607.13.5).
The gravity loads, and thus the stresses of the structural elements, in the area of the solar array are either decreased or
increased by no more than 5%. Therefore, the requirements of Section 503.3 of the 2019 CEBC are met and the structure is
permitted to remain unaltered.
651 W. Galena Park Blvd., Ste. 101 / Draper, UT 84020 / T (801) 990-1775 / F (801) 990-1776 / www.vectorse.com
3702 S Alder St
11/05/21
VSE Project Number: U2880.1484.211
Praxedis, Candido Prisca Residence
10/25/2021
The solar arraywill be flush-mounted (no more than 10" above the roof surface) and parallel to the roof surface. Thus, we
conclude that anyadditional wind loadingon the structure related to the addition of the proposed solar arrayis negligible.
The attached calculations verifythe capacityof the connections of the solar arrayto the existingroof against wind (uplift),
the governing load case. Regarding seismic loads, we conclude that any additional forces will be small. Conservatively
neglectingthe weight of existingwall materials, the installation of the solar panels represents an increase in the total weight
(and resulting seismic load) of 4.3%. Because the increase in lateral forces is less than 10%, this addition meets the
requirements of the exception in Section 503.4 of the 2019 CEBC. Thus the existing lateral force resisting system is
permitted to remain unaltered.
Limitations
Installation of the solar panels must be performed in accordance with manufacturer recommendations. All workperformed
must be in accordance with accepted industry-wide methods and applicable safety standards. The contractor must notify
Vector Structural Engineering, LLC should anydamage, deterioration or discrepancies between the as-built condition of the
structure and the condition described in this letter be found. Connections to existingroof framingmust be staggered, except
at arrayends, so as not to overload anyexistingstructural member. The use of solar panel support span tables provided by
others is allowed onlywhere the buildingtype, site conditions, site-specific design parameters, and solar panel configuration
match the description of the span tables. The design of the solar panel racking(mounts, rails, etc.) and electrical engineering
is the responsibilityof others. Waterproofingaround the roof penetrations is the responsibilityof others. Vector Structural
Engineering assumes no responsibility for improper installation of the solar array.
VECTOR STRUCTURAL ENGINEERING, LLC
10/25/2021
_______________________________________________________
Jacob Proctor, P.E.
CA License: 70567 - Expires: 06/30/2023
Project Engineer
Enclosures
JSP/amo
10/25/2021
651 W. Galena Park Blvd., Ste. 101 / Draper, UT 84020 / T (801) 990-1775 / F (801) 990-1776 / www.vectorse.com
3702 S Alder St
11/05/21
JOB NO.: U2880.1484.211
SUBJECT: SEISMIC LOADS
PROJECT: Praxedis, Candido & Prisca Residence
CHECK INCREASE IN OVERALL SEISMIC LOADS
10.2 psf
3.0 psf
15%
10.6 psf
4.3%
Conservatively neglecting the weight of existing wall materials, the installation of the solar panels represents an
increase in the total weight (and resulting seismic load) of 4.3%. Because the increase is less than 10%, this
addition meets the requirements of the exception in Section 503.4 of the 2019 CEBC. Thus the existing structure
is permitted to remain unaltered.
Addt'l Seismic Weight
Estimated Roof Dead Load
Solar Dead Load
% Roof Covered
Equiv. Total Dead Load
3702 S Alder St
11/05/21
JOB NO.: U2880.1484.211
SUBJECT: WIND PRESSURE
PROJECT: Praxedis, Candido & Prisca Residence
Label: Note: Calculations per ASCE 7-16
SITE-SPECIFIC WIND PARAMETERS:
Basic Wind Speed [mph]: 95 Notes:
Exposure Category: C
Risk Category: II
Importance Factor, I:
ADDITIONAL INPUT & CALCULATIONS:
Height of Roof, h [ft]: 15 (Approximate)
Comp/Cladding Location: Gable Roofs 7° < θ ≤ 20°
Enclosure Classification:
Zone 1, 2e GCp: 2.00 Zone 1, 2e γa: 0.75
Zone 2n, 2r, 3e GCp: 2.82 Zone 2n, 2r, 3e γa: 0.75
Zone 3r GCp: 3.38 Zone 3r γa: 0.75
γa: 0.40
α: 9.5 Table 26.11-1
zg [ft]: 900 Table 26.11-1
Kh: 0.85 Table 26.10-1
Ke: 1.00 Table 26.9-1
Kzt: 1 Equation 26.8-1
Kd: 0.85 Table 26.6-1
Velocity Pressure, qh [psf]: 16.6 Equation 26.10-1
γE: 1.50 Section 29.4.4
γC: 1.00 Section 29.4.4
γP: 1.20 Section 29.4.4
p = qh (GCp )(γ E )(γ a )
p = qh (GCrn), (GCrn) = (γ p )(γ c )(γ E )(GCrn)nom
Zone 1, 2e, p [psf]: 37.4 psf (1.0 W)
Zone 2n, 2r, 3e, p [psf]: 52.8 psf (1.0 W)
Zone 3r, p [psf]: 63.2 psf (1.0 W)
(a =3 ft)
Fig.
29.4-8
WIND PRESSURES: Equation 29.4-7
Solar Panel Array
Enclosed Buildings
Figure 30.3-2B
(negative coeff.)
Components and Cladding Wind Calculations
3702 S Alder St
11/05/21
JOB NO.: U2880.1484.211
SUBJECT: CONNECTION
PROJECT: Praxedis, Candido & Prisca Residence
Calculate Uplift Forces on Connection
Pressure
(0.6 Dead -0.6 Wind)
(psf)
Max Trib. Width1
(ft)
Max Trib.
Area2
(ft2)
Max Uplift
Force
(lbs)
Zone 1, 2e 20.7 4.0 13.3 275
Zone 2n, 2r, 3e 29.9 4.0 13.3 398
Zone 3r 36.1 4.0 13.3 481
Calculate Connection Capacity
Lag Screw Size [in]: 5/16
Cd: 1.6 NDS Table 2.3.2
Embedment3 [in]: 2.5
Grade:
Nominal Capacity [lbs/in]: 205 NDS Table 12.2A
Number of Screws: 1
Prying Coefficient: 1.4
Total Capacity [lbs]: 586
Determine Result
Maximum Demand [lbs]: 481
Lag Screw Capacity [lbs]: 586
Result: Capacity > Demand, Connection is adequate.
Notes
1. 'Max Trib. Width' is the width along the rails tributary to the connection.
2. 'Max Trib Area' is the product of the 'Max. Trib Width' and 1/2 the panel width/height perpendicular to the
rails. (2) rails per row of panels. Length of panels perpendicular to the rails shall not exceed 80".
SPF (G = 0.42)
3. Embedment is measured from the top of the framing member to the beginning of the tapered tip of the lag
screw. Embedment in sheathing or other material is not effective. The length of the tapered tip is not part of the
embedment length.
3702 S Alder St
11/05/21
VECTOR STRUCTURAL ENGI
JOB NO.: U2880.1484.211
SUBJECT: GRAVITY LOADS
PROJECT: Praxedis, Candido & Prisca Residence
GRAVITY LOADS Roof Pitch: 4.0 :12
ROOF DEAD LOAD (D)
Increase due to
pitch
Material weight
[psf]
Composite Shingles 1.05 2.0
1/2" Plywood 1.05 1.0
Framing 1.00 3.0
Insulation 1.00 0.0
1/2" Gypsum Clg.1.05 0.0
M, E & Misc 1.00 0.0
Total Existing Roof DL
PV Array DL 1.05 3
DL:1.05
ROOF LIVE LOAD (Lr)
Existing Design Roof Live Load [psf]20 ASCE 7-16 Table 4.3-1
Roof Live Load With PV Array [psf]0
SNOW LOAD (S):w/ Solar Array
Roof Slope [x:12]:4.0
Roof Slope [°]:19
Ground Snow Load, pg [psf]:0 ASCE 7-16, Section 7.2
Terrain Category:C ASCE 7-16, Table 7.3-1
Exposure of Roof:Fully Exposed ASCE 7-16, Table 7.3-1
Exposure Factor, Ce:0.9 ASCE 7-16, Table 7.3-1
Thermal Factor, Ct:1.1 ASCE 7-16, Table 7.3-2
Risk Category:II ASCE 7-16, Table 1.5-1
Importance Factor, Is:1.0 ASCE 7-16, Table 1.5-2
Flat Roof Snow Load, pf [psf]:0 ASCE 7-16, Equation 7.3-1
Minimum Roof Snow Load, p m [psf]:0 ASCE 7-16, Section 7.3.4
Unobstructed Slippery Surface?Yes ASCE 7-16, Section 7.4
Slope Factor Figure:Figure 7-2b ASCE 7-16, Section 7.4
Roof Slope Factor, Cs:0.86 ASCE 7-16, Figure 7.4-1
Sloped Roof Snow Load, ps [psf]:0 ASCE 7-16, Equation 7.4-1
Design Snow Load, S [psf]:0
1.00
0
Design material
weight [psf]
2.1
1.1
3.0
0.0
0.0
0.0
6.2
3.2
#VALUE!
2019 CBC, Section 1607.13.5
Existing
0
4.0
19
0
C
Fully Exposed
0.9
1.1
II
1.0
0
0
No
Figure 7-2b
3702 S Alder St
11/05/21
JOB NO.: U2880.1484.211
SUBJECT: LOAD COMPARISON
PROJECT: Praxedis, Candido & Prisca Residence
Summary of Loads
Existing With PV Array
D [psf]6 9
Lr [psf]20 0
S [psf]0 0
Maximum Gravity Loads:
Existing With PV Array
(D + Lr) / Cd [psf] 21 10 ASCE 7-16, Section 2.4.1
(D + S) / Cd [psf] 7 10 ASCE 7-16, Section 2.4.1
Maximum Gravity Load [psf]: 21 10
Ratio Proposed Loading to Current Loading:50% OK
The gravity loads, and thus the stresses of the structural elements, in the area of the
solar array are either decreased or increased by no more than 5%. Therefore, the
requirements of Section 503.3 of the 2019 CEBC are met and the structure is permitted
to remain unaltered.
(Cd = Load Duration Factor = 0.9 for D, 1.15 for S, and 1.25 for Lr)
3702 S Alder St
11/05/21
DR
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10/21/2021
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Paper Size
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Drawn by
Title
Project Number
Sheet
1/16" = 1'-0
SYSTEM INFORMATION
ARRAY MOUNT ROOF
PITCH
ARRAY
TILT
MAGNETIC
ORIENTATION
TRUE
ORIENTATION
AR-01 FLUSH 4/12 18.43°78°90°
AR-02
AR-03
AR-04
AR-05
1
PV-02 SCALE: 1/16" = 1'-0"
1
2
10/22/2021
VSE Project Number: U2880-1484-211
Vector Structural Engineering has reviewed the existing
structure with loading from the solar array and screw
connections to the existing framing. The design of the
racking system, racking connections, and all other
structural is by others. Mechanical, architectural, and all
other nonstructural aspects of the design are by others.
Electrical is by others, unless stamped by Dean Levorsen.
3702 S Alder St
11/05/21
24'
3'3'
3'
(N) 60A AC DISCONNECT
2P, 240V, NON FUSIBLE
(N) 200A MAIN SERVICE PANEL
& UTILITY METER, 120/240VAC, 1ɸ
(E) 2X6 RAFTERS
@24" OC, TYP
(N) SOLAREDGE: SE6000H-US [240V]
INVERTER
10/21/2021
6.
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Paper Size
Scale
Drawn by
Title
Project Number
Sheet
BUILDING SPECS
ARRAY SPECS
MODULE SPECS
STORIES:
BUILDING HEIGHT:
BUILDING FT²:
FRAMING TYPE:
RAFTER SIZE:
RAFTER SPACING:
SPAN:
SLOPE OF ROOF:
MIN LAG BOLT
EMBEDMENT:
ROOFING MATERIAL:
STANDOFF DISTANCE:
RACKING CO:
MODEL:
STC:
PTC:
WEIGHT:
LENGTH:
WIDTH:
JINKO: JKM400M-72HL-V
400W
55.10LBS
81.90"
40.60"
NUMBER OF MODULES:
SYSTEM WEIGHT (LBS):
ARRAY AREA (SQ.FT.):
NUMBER OF MOUNTS:
LOAD PER MOUNT (LBS):
LOAD PER SQ.FT. (LBS):
1
PV-02 SCALE: 1/8" = 1'-0"
17
1021.70
380.66
34
30.05
1
15'
1561ft²
RAFTERS
2X6
24" O.C.
24' MAX
4/12
3" MIN
COMP SHINGLE
IRONRIDGE
4' MAX
CONSTRUCTION NOTES
x PRIOR TO COMMENCING WORK, CONTRACTOR SHALL FIELD VERIFY ALL EXISTING CONDITIONS AND SHALL NOTIFY ENGINEER OF ANY
DISCREPANCIES, INCLUDING BUT NOT LIMITED TO DIMENSIONS, STRUCTURE, ELECTRICAL SERVICE, CONDUIT PATHS, UNDERGROUND UTILITIES,
OBSTRUCTIONS, ACCESSIBILITY ISSUES AND WORKING CLEARANCES.
x THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS, AND SITE CONDITIONS BEFORE STARTING ANY OF THE WORK.
x ALL LOCATIONS ARE APPROXIMATE AND REQUIRE FIELD VERIFICATION.
x ALL EQUIPMENT SHOULD BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION INSTRUCTIONS.
x ALL OUTDOOR EQUIPMENT SHALL BE RAIN TIGHT WITH MINIMUM NEMA 3R RATING.
x ALL EXPOSED CONDUIT SHALL BE EMT AND SHALL BE MOUNTED AT MIN 3.5 OFF SURFACE OFF ROOF SURFACE.
x ALL FIELD INSTALLED JUNCTION, PULL AND OUTLET BOXES LOCATED BEHIND MODULES OR PANEL SHALL BE ACCESSIBLE DIRECTLY OR BY
DISPLACEMENT OF MODULE(S) OR PANEL(S) SECURED BY REMOVABLE FASTENERS.
x LIVE PARTS IN PV SOURCE CIRCUITS AND PV OUTPUT CIRCUITS OVER 150 VOLTS TO GROUND SHALL NOT BE ACCESSIBLE TO OTHER THAN QUALIFIED
PERSONS WHILE ENERGIZED.
x IF THE EXISTING MAIN SERVICE PANEL DOES NOT HAVE VERIFIABLE GROUNDING ELECTRODE, IT IS THE CONTRACTOR'S RESPONSIBILITY TO INSTALL
A SUPPLEMENTAL GROUNDING ELECTRODE.
x THE SOLAR PHOTOVOLTAIC INSTALLATION SHALL NOT OBSTRUCT ANY PLUMBING, MECHANICAL, OR BUILDING ROOF VENTS.
x PROVIDE MINIMUM 4" CLEARANCE BETWEEN SOLAR AND ANY VENT.
x THIS PROJECT HAS BEEN DESIGNED IN COMPLIANCE WITH THE CBC SECTION 1609 TO WITHSTAND A MINIMUM 110MPH WIND LOAD.
ATTACHMENT DETAIL
SCALE: NTS
18.43°
5/16"x 4.75" SS Lag Bolt
3" Min Embedment
flashing
pv module
Ironridge
Flashfoot 2
COMP SHINGLE
2x FRAMING
@24" OC, TYP
Ironridge Rail
10/22/2021
VSE Project Number: U2880-1484-211
Vector Structural Engineering has reviewed the existing
structure with loading from the solar array and screw
connections to the existing framing. The design of the
racking system, racking connections, and all other
structural is by others. Mechanical, architectural, and all
other nonstructural aspects of the design are by others.
Electrical is by others, unless stamped by Dean Levorsen.
3702 S Alder St
11/05/21
DC
OPTIMIZER
SOME MODULE/OPTIMIZER
PAIRS NOT SHOWN FOR
CLARITY
SOLAR
MODULE
OPTIMIZER GROUNDING DETAILS
CONNECT MODULE OUTPUT
CONDUCTORS TO SOLAR EDGE
INPUT LEADS
CONDUCTORS EXPOSED TO FREE AIR:
(4) #10 AWG PV-WIRE CONDUCTORS
(1) #6 AWG BARE COPPER GROUND
STRING 1
DC
OPTIMIZER
DC
OPTIMIZER
3/4" EMT CONDUIT:
(4) #10 AWG THWN-2 WIRE CONDUCTORS
(1) #8 AWG THWN-2 COPPER GROUND
JUNCTION BOX
(AS NEEDED)
INVERTER
DC IN
AC OUT
STRING 2
WIRING IDENTICAL TO STRING 1
(8) JINKO: JKM400M-72HL-V
(8) SOLAREDGE: P400 POWER
OPTIMIZERS
B
3
2
1
A
LOAD RATED DC DISCONNECT
MAX DC INPUT VOLTAGE: 480V
MANUAL
LOCKABLE
DISCONNECT
3R, 60A,
120/240VAC
3/4" EMT:
(2) #8 AWG THWN-2 CONDUCTORS
(1) #8 AWG THWN-2 NEUTRAL
(1) #8 AWG THWN-2 GROUND
CC
4
120/240 VAC
SINGLE PHASE SERVICE
(N) 200A MAIN PANEL
(N) 200A MAIN BREAKER
(N) 35 AMP
PV BREAKER
GROUND
BUS
NEUTRAL
BUS
UTILITY
METER
FACILITY
GROUND
SUPPLEMENTAL
GROUND IF
NECESSARY
20
0
A,
2
P
*INSTALLER TO VERIFY EXISTING GROUNDING SYSTEM*
GEC COMPLIANT WITH NEC ARTICLES 250 AND 690.
6AWG BARE COPPER GROUND RUN OUTSIDE RACEWAY OR 8AWG THWN-2 IN CONDUIT
(690.47, 250.30, 250.33, 250.66, 250.64 & ANY OTHER APPLICABLE SECTIONS)
(9) JINKO: JKM400M-72HL-V MODULES AND
(9) SOLAREDGE: P400 DC-DC POWER
OPTIMIZERS.
OPTIMIZERS ARE WIRED IN SERIES
x 380V FIXED STRING VOLTAGE DURING
OPERATION (CONTROLLED BY INVERTER).
x 480V DC MAXIMUM STRING VOLTAGE
(LIMITED BY INVERTER).
SOLAREDGE: SE6000H-US [240V]
6000WATT INVERTER
10/21/2021
6.
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Sheet
10/21/2021
6.
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ELECTRICAL NOTES:
1. GROUNDING WIRE WILL BE BONDED DIRECTLY TO FACILITY GROUND.
2. ELECTRICAL SYSTEM GROUNDING WILL COMPLY WITH 2017 NEC 250.
3. MODULE CONNECTIONS TO BE MADE WITH #10 PV WIRE PER 690.35(D).
4. MODULE CONDUCTORS ARE SIZED FOR DERATED CURRENT.
9.71 AMPS SHORT CIRCUIT CURRENT
125% DERATING FOR EXTREME IRRADIANCE CONDITIONS [NEC 690.8(A)(1)]
125% DERATING, CONTINUOUS PHOTOVOLTAIC SOURCE CURRENT [NEC 690.8(B)(1)].
156% TOTAL DERATING (COMBINATION OF ABOVE)
15.15 AMPS TOTAL CAPACITY
(AMPS TOTAL CAPACITY = STRING SHORT CIRCUIT CURRENT MULTIPLIED BY TWO ABOVE DERATES, 1.25 X 1.25 X SHORT
CIRCUIT CURRENT)
5. INVERTER PROVIDES NECESSARY GROUND FAULT PROTECTION AS REQUIRED BY 2017 NEC 690.5 GROUND FAULT PROTECTION
AND 690.35 UNGROUNDED SYSTEMS.
6. PHOTOVOLTAIC SYSTEM IS UNGROUNDED. NO CONDUCTORS ARE SOLIDLY GROUNDED IN THE INVERTER. SYSTEM COMPLIES
WITH 690.35.
7. WHERE DC PHOTOVOLTAIC OUTPUT CIRCUITS ARE RUN INSIDE A BUILDING THEY SHALL BE CONTAINED IN A METALLIC
RACEWAY OR ENCLOSURE FROM THE POINT OF PENETRATION TO THE FIRST READILY ACCESSIBLE DISCONNECTING MEANS -
2017 NEC 690.31 (E).
8. USE UL APPROVED BONDING FITTINGS AT ALL CONDUIT/BOX JUNCTIONS.
9. MODULES CONFORM TO AND ARE LISTED UNDER UL 1703.
10. INVERTER CONFORMS TO AND IS LISTED UNDER UL 1741.
11. INSTALLER TO IDENTIFY THE EXISTING GROUNDING ELECTRODE TYPE (I.E. DRIVEN ROD, UFER, WATER PIPE, OR COMBINATION
OF SOME OR ALL OF THE PREVIOUSLY MENTIONED). IN EXISTING ELECTRICAL SYSTEMS THAT USE ONLY A WATER PIPING
GROUNDING ELECTRODE SYSTEM, AN ADDITIONAL GROUNDING ELECTRODE (I.E DRIVEN ROD) SHALL BE PROVIDED. (NEC 250.50)
12. PER NEC 250.53(2), A SINGLE ROD, PIPE OR PLATE ELECTRODE SHALL BE SUPPLEMENTED BY AN ADDITIONAL ELECTRODE OF
TYPE SPECIFIED IN 250.52(A)(2) THROUGH (A)(8) SPACED NO LESS THAN 6FT APART. EXCEPTION, IF A SINGLE ROD, PIPE OR PLATE
GROUNDING ELECTRODE HAS A RESISTANCE TO EARTH OF 25 OHMS OR LESS, THE SUPPLEMENTAL ELECTRODE SHALL NOT BE
REQUIRED.
13. #4 AWG CU TO UNDERGROUND METAL WATER PIPE THAT IS A MINIMUM 10 FOOT BURIAL IN PIPE LENGTH. CONNECT GROUNDING
ELECTRODE CONDUCTOR WITHIN FIVE FEET OF WHERE IT ENTERS BUILDING. 250.52(A)(1), 250.68(C).
14. ADDITIONAL #4 AWG CONNECTION TO UFER IF AVAILABLE PER 250.66. IF UFER NOT AVAILABLE THEN TWO #6 AWG CU
CONNECTIONS TO GROUND RODS SEPARATED BY AT LEAST 6 FT IS NEEDED PER 250.33.
DC WIRE SIZING CALCULATIONS:
ASSUMPTIONS
HIGH TEMP AMBIENT = 39°C
HIGH TEMP ROOF = 56°C
LOW TEMP = -7°C
90°C RATED WIRE
CONDUIT MOUNTED MIN 3.5" ABOVE ROOF
SURFACE
AC WIRE SIZING CALCULATIONS:
EQUIPMENT
ID QTY ITEM
1 1 7 (N) JINKO: JKM400M-72HL-V MODULE
2 1 7 (N) SOLAREDGE: P400 DC-DC OPTIMIZERS
INVERTER 1 (N) SOLAREDGE: SE6000H-US [240V] INVERTER
3 1 (N) NEMA 3R 60A NON-FUSED AC DISCONNECT
240VAC, 10KAIC RATING.
OCPD CALCULATIONS PER INVERTER:
MAX AC OUTPUT CURRENT = (Inverter Output Circuit Current)[690.8(A)(3)] x (Safety)[690.9(B)] =
(25.00A) x (1.25) = 31.25A --> 35A OVERCURRENT PROTECTION.
MAIN PANEL
PV BACKFEED BREAKER SIZE 35A
MAIN BREAKER SIZE: 200A, MAIN BUS RATING: 200A
TOTAL AMPS ON BUS 200A + 35A = 235A ≤ 120% OF 200A (240A)
C. INVERTER TO MAIN SERVICE PANEL
SOLAREDGE: SE6000H-US [240V]:
MAX OUTPUT CURRENT: 25.00A
per 690.8(B)(1): 25.00A x 1.25 = 31.25A
WIRE CHOICE: #8 AWG THWN-2
per 310.15(B)(16): #8 THWN-2 = 50A @75°C
per 310.15(B)(2)(a): 50A x 0.91[CORRECTION] = 45.5A
per 310.15(B)(3)(a): 45.5A x 100%[ADJUSTMENT] =45.5A
31.25A ≤45.5A ===> OK
A. OPTIMIZER TO JUNCTION BOX (OPEN AIR)
SOLAREDGE: P400 POWER OPTIMIZER
per 690.8(A)(5): 15A (max output current)
per 690.8(B)(1): 15A x 1.25 = 18.75A
WIRE CHOICE: #10 AWG PV-WIRE
per 310.15(B)(16): #10 PV-WIRE = 40A @90°C
per 310.15(B)(3)(C): 39°C + 17°C[3.5" ABOVE ROOF] = 56°C
per 310.15(B)(2)(a): 40A x 0.71[CORRECTION] = 28.4A
per 310.15(B)(3)(a): 28.4A x 100%[ADJUSTMENT] =28.4A
18.75A ≤28.4A ===> OK
B. JUNCTION BOX TO INVERTER
SOLAREDGE: P400 POWER OPTIMIZER
per 690.8(A)(5): 15A (max output current)
per 690.8(B)(1): 15A x 1.25 = 18.75A
WIRE CHOICE: #10 AWG THWN-2
per 310.15(B)(16): #10 THWN-2 = 35A @75°C
per 310.15(B)(3)(C): 39°C + 17°C[3.5" ABOVE ROOF] = 56°C
per 310.15(B)(2)(a): 35A x 0.71[CORRECTION] = 24.85A
per 310.15(B)(3)(a): 24.85A x 80%[ADJUSTMENT] =19.88A
18.75A ≤19.88A ===> OK
10/26/2021
VSE Project Number: U2880.1484.211
OWERELECTRICAL ONLY
3702 S Alder St
11/05/21
WARNING
POWER SOURCE OUTPUT
CONNECTIONDO NOT
RELOCATE THIS
OVERCURRENT DEVICE
GENERAL FIRE GUIDELINES & MARKING REQTS:
SEC. 5. MARKINGS, LABELS, AND WARNING SIGNS.
CAUTION: SOLAR ELECTRIC SYSTEM CONNECTED
CAUTION: SOLAR CIRCUIT
SEC. 7. DIRECT CURRENT (DC) CONDUCTOR LOCATIONS.
SEC. 8. GROUND MOUNTED PHOTOVOLTAIC ARRAYS.
SEC. 9. OVERHEAD ARRAYS ON ROOFTOPS (E.G. TRELLIS SYSTEMS).
RAPID SHUTDOWN SWITCH
FOR SOLAR PV SYSTEM
WARNING
THE DISCONNECTION OF THE
GROUNDED CONDUCTOR(S)
MAY RESULT IN OVERVOLTAGE
ON THE EQUIPMENT
WARNING
ELECTRIC SHOCK HAZARD
TERMINALS ON THE LINE AND
LOAD SIDE MAY BE ENERGIZED
IN THE OPEN POSITION
REQUIRED WARNING LABELS
WARNING: PHOTOVOLTAIC POWER SOURCE
⁄
⁄
MAX SYSTEM VOLTAGE: 480V
MAX CIRCUIT CURRENT:9.71A
MAX RATED OUTPUT CURRENT OF 15A
THE CHARGE CONTROLLER OR DC-TO-DC
CONVERTER (IF INSTALLED)
INTERACTIVE PHOTOVOLTAIC POWER SOURCE
RATED AC OUTPUT CURRENT (A): 25.00A
NOMINAL OPERATING AC VOLTAGE (V): 240V
10/21/2021
6.
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CAUTION
POWER TO THIS BUILDING IS ALSO
SUPPLIED FROM THE FOLLOWING
SOURCES WITH DISCONNECTS
LOCATED AS SHOWN.
THIS LABEL TO BE INSTALLED AT THE
MAIN ELECTRICAL SERVICE PANEL
CAUTION
POWER TO THIS BUILDING IS ALSO
SUPPLIED FROM THE FOLLOWING
SOURCES WITH DISCONNECTS
LOCATED AS SHOWN.
3702 ALDER STREET SANTA ANA, CA 92707
THIS LABEL TO BE INSTALLED AT THE
MAIN ELECTRICAL SERVICE PANEL
(17) TOTAL
PV MODULES
MAIN ELECTRIC
SERVICE
DISCONNECTPV SYSTEM DISCONNECT
FOR UTILITY OPERATION
SOLAR D/C
DISCONNECT
10/26/2021
VSE Project Number: U2880.1484.211
ELECTRICAL ONLY
3702 S Alder St
11/05/21
10/21/2021
6.
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11/05/21
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11/05/21
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Paper Size
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Project Number
Sheet
3702 S Alder St
11/05/21
10/21/2021
6.
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Project Number
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10/21/2021
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Paper Size
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Project Number
Sheet
3702 S Alder St
11/05/21
10/21/2021
6.
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10/21/2021
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Project Number
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3702 S Alder St
11/05/21
10/21/2021
6.
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Project Number
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10/21/2021
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Paper Size
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Drawn by
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Project Number
Sheet
3702 S Alder St
11/05/21
10/21/2021
6.
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Project Number
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10/21/2021
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Paper Size
Scale
Drawn by
Title
Project Number
Sheet
3702 S Alder St
11/05/21
10/21/2021
6.
8
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PR
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Paper Size
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Drawn by
Title
Project Number
Sheet
10/21/2021
6.
8
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Paper Size
Scale
Drawn by
Title
Project Number
Sheet
3702 S Alder St
11/05/21