Residential EVSE Installation Worksheet
Complete the project information, select the installation scope and power source, then enter the EVSE setting, branch-circuit conductor, and breaker. The worksheet checks the selected conductor and overcurrent device against the EVSE continuous-load setting.
1. Project information
2. Scope of work
3. Electrical power source
4. EVSE and branch-circuit sizing
5. Automatic sizing checks
6. Applicant acknowledgment
Source worksheet EV1 references the 2022 California Building Standards Code. Confirm the currently adopted code edition and local amendments. The conductor ampacity values below reproduce EV1's listed values; verify wiring method, terminal ratings, correction and adjustment factors, and applicable conductor limitations before approval.
Building Standards for Electric Vehicle (EV) Chargers
Scope Examples: Installation, repair, or renovation of electric vehicle (EV) charging stations in residential settings. This may include:
- Installing Level 1 or Level 2 EV chargers, either hardwired or plug-in units.
- Upgrading electrical service panels to support EV charging infrastructure.
- Installing dedicated circuits for EV chargers, including wiring and grounding.
- Setting up conduit, outlet boxes, and other necessary electrical infrastructure for future or existing EV charging stations.
Title 24 is divided into specific parts addressing various aspects of construction. Key sections for electric vehicle chargers include:
- California Electrical Code (CEC):
- Governs the design, installation, and safety requirements for electrical systems related to EV chargers.
- Includes regulations for wiring, circuit protection, grounding, and dedicated circuits for EV chargers.
- Specifies standards for safe installation of charging equipment, including clearances, access, and separation from other electrical systems.
- Addresses the proper installation of outlet receptacles, plug-in chargers, and any necessary disconnects or shutoff switches for safety.
- California Residential Code (CRC):
- Provides guidelines for the installation of EV chargers in one- and two-family dwellings.
- Includes requirements for the placement of charging stations within garages, carports, or exterior locations, ensuring safe access and operational clearances.
- California Building Code (CBC):
- Covers the structural aspects of supporting EV chargers, including ensuring that electrical infrastructure is adequately supported and protected.
- Addresses any structural modifications needed to support the installation of an EV charger, such as securing conduit or electrical equipment to walls or supports.
- California Energy Code:
- Enforces energy efficiency standards related to EV chargers, including smart charging capabilities, load management, and energy conservation strategies.
- Encourages the integration of renewable energy sources, such as solar, to power EV chargers and reduce reliance on grid electricity.
- California Plumbing Code (CPC):
- While primarily focused on plumbing systems, the CPC may be relevant for the installation of electric vehicle charging stations in relation to integrated water heating or other systems tied to EV infrastructure (e.g., cooling systems).
- California Fire Code:
- Specifies fire safety regulations for the installation of EV chargers, including the clearance of charging equipment from combustible materials, ensuring proper ventilation, and fire prevention measures for electrical installations.