City of Rialto (CA)

Codes

NEC Code Version

2023

Fire Code Version

2018 Building Code

Code List

2025 CALIFORNIA BUILDING CODE

2025 CALIFORNIA ELECTRICAL CODE

2025 CALIFORNIA FIRE CODE

2025 CALIFORNIA PLUMBING CODE

2025 CALIFORNIA MECHANICAL CODE

2025 CALIFORNIA ENERGY CODE

2025 CALIFORNIA RESIDENTIAL CODE

2025 CALIFORNIA ADMINISTRATIVE CODE

ASCE Code Specification

ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status

Adopted

Any SolarAPP+ Restrictions

1

SolarAPP+ Restrictions

Existing Systems,Trenching

How Many Plansets Required

2

Revision Required

1

Rough Inspection

None

New Planset Required For Module Swap

0

Stamps

Ee Stamp Required On SLD

Yes - 10kW+

Wet Stamps Required

None

Structural Calculations Required

Yes

Ee Stamp Notes

EE stamp required when the system is over 10KW

Stamp Location On Plans

Unspecified

Date On Stamps

Expiration Date

Fire setbacks

Fire Setback Enforced

1

Setback Notes

All Jobs [PV arrays shall be located at least 2h2 (2 times the maximum height of the modules above the roof deck) from the roof edge, a gable ridge or a hip ridge.]

EX: If the modules are 6in above the roof surface, the minimum setback would be 2 x 6in = 12 inches.

Structural & loads

Wind Speed

130

Wind Notes

Exposure Category C, Seismic zone D

Snow Load

0

Snow Load Notes

N/A

Reducible Snow Load Allowed

1

Max Attachment Spacing

96

Structural Notes

SE digital stamps on corresponding PV pages, PE Letter & Calcs.

WS:130mph. Exposure C.

Structural engineering documents must indicate the number of panels

City of Rialto wants the wind speed on the cover sheet to match structural calculations.

Provide the engineer's stamp and signature on plan sheets for structural components. Provide on roof or site plan.

Structural calcs need to be unlocked for AHJ to add approval stamp.

Minimum Ground On Roof

#10

Electrical

AC Disconnect Conditional Criteria

BATTERY PROJECTS: Where the disconnect is NOT located within sight of the ESS, the disconnect shall be capable of being locked in the open position.

Electrical Load Calcs Required

Derates,MPUs

Allowed POI

Meter Adapter,Load Side Taps,PV Breaker,Line Side Taps

Panel Schedule Required

Partial Home Backup

Service Ground Requirements

EGC WIRE WILL NOT BE SPLICED EGC WILL BE RAN CONTINUOUSLY METALLIC PIPING IN THE BUILDING TO BE BONDED PER CEC 250.104

Temperature Rating

90

De Rating Ampacity

0.91

Battery / ESS

Unique Battery Placards Needed

0

ESS Notes

• Illumination must be provided at ESS and cannot be controlled ONLY by automatic means.
• Light from adjacent sources is permitted to satisfy the requirement.
• ESS shall be located not less than 3 feet from doors or windows directly entering the dwelling unit.
• Provide ESS attachment details

ESS DISCONNECT TO BE LOCATED NEXT TO THE BATTERY

add Solaredge backup interface spec sheets for energy bank (this is not a standard spec sheet that gets generated with planset - make sure to add)

make note of chint breaker size as the AHJ does not think 63 amp is the correct breaker

Separate ESS Disconnect Required

ESS Disconnect

ESS Elevation Detail Required

Yes - with dimensions

Plan set

Plan Set Requirements

• Panel Labels: If existing Main Service Panel does not have a panel label, we will not pass inspection. Inspector wants Bus Certification to confirm Panel Manufacturer. Request this through a stamp task to our Stamping Vendor.
• Make sure date is on the plans. GTE does not have the date on their plans. Provide spec sheets for all equipment to be installed, such as modules, junction boxes, disconnect boxes, inverters, and solar panel anchorage system Include the existing panels to the array area
• Because of our proximity to the San Andreas fault, all underground pipe, conduit, and lines will be shaded with cleaned dirt void of any rocks or clean sand, six inches below and twelve inches above said pipe, conduit, or line.
• And all electrical metal conduit will need a ground conductor; the metal conduit will not act as the ground conductor.

Cover Page

Identify on the cover sheet, the occupancy type, construction type, sprinklered or not and how many stories is the existing home.

Include the name and address of the owner and designer, site address, and list all consultants (engineer, energy, soils, etc.), associated with the project

Cover Page Notes

All Jobs [130 MPH WIND SPEED, EXPOSURE C, SEISMIC ZONE D]

Site

ALL JOBS:

• Identify center line of street with street name, property lines, all parking spaces including accessible parking spaces and accessible van parking spaces
• Identify the accessible path of travel from street sidewalk to building entrance on site plan Identify the area under the permit on the site plan

BATTERY JOBS:

• Specify with a note "ESS shall be located not less than 3 feet from doors or windows directly entering the dwelling unit."

Roof Plan

Spans should be 4ft due to high wind speed PV arrays shall be located at least 2h2 (2 times the maximum height of the modules above roof deck) from the roof edge, a gable ridge or a hip ridge.

Attachment Detail

Specify 5/16" diameter lag screw, 4" length with 2-1/2" embedment.

Electrical Diagram

120% rule allowed per CEC 705.12(B)(2)(3)(d)

EGC WIRE WILL NOT BE SPLICED

EGC WILL BE RAN CONTINUOUSLY METALLIC PIPING IN THE BUILDING TO BE BONDED PER CEC 250.104

Required: #6awg ground from modules to MSP

Required: Label the string callout with the roof where the modules in that string are located.

City of Rialto does not require production meter

BATTERY PROJECTS:

Where the disconnect is NOT located within sight of the ESS, the disconnect shall be capable of being locked in the open position.

Electrical Diagram Notes

MPU [There shall be two ground rods separated by six feet or more, or provide a certified test showing that the residence to the ground is 25 ohms or less w/ (1) 6, Bare Copper.

Ground rod to be used is 5/8" x 8' copper-bonded ground rod per CEC 250.52]

Battery Jobs - Backfeed breaker must indicate that the ESS will backfeed on same breaker

Battery [The PV disconnecting means shall be installed at a readily accessible location either on the outside of a building or structure or inside nearest the point of entrance of the system conductors. A single, visible-open, lockable AC disconnect shall be within 3 feet of the meter on the exterior of the building. Note on single line diagram.]

Label Page

Battery

ESS Notification and Marking Each ESS disconnecting means shall plainly indicate whether it is in the open (off) or closed (on) position and be permanently marked "ENERGY STORAGE SYSTEM DISCONNECT."

The disconnecting means shall be legibly marked in the field to indicate the following:

Nominal ESS AC voltage and Maximum ESS DC voltage

Custom Placards Required

1

Placards Notes

• Permanent Main Site Placard posted at MSP
• Permanent disconnect placards from Placard page of plan set

Ground mount

Ground Mount Fencing Required

No

Ground Mount Notes

GM's do not require fencing, however they have setback requirement of 5' on side and 10' in from rear.

Setback Back Yard

5

Setback Side Yard

10