Electric Service Requirements (ESR)

The information contained on this page comprises the Electric Standards Requirements book distributed by TEP as a reference and a guide for regulations and practices regarding the connection and supply of electric service for TEP and UES Santa Cruz County.

For more information, see SR-100.

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Quick Access

Online ESR

Download the annual print-version ESR book. (published January 2024)
Please Note: The printed version does not include revisions past the yearly publication date.

View or Download

Copyright Notice (Proprietary Material)
Change and Comment Form
Previous Year Summary of Revisions—2023
Monthly Summary of Revisions—2024
TEP Service Area Map


General Information – 100

Number Title
100 Title Block and Logos
101 Important Contact Information
One Call — Bluestake, Tree Trimming and Overhead Protection
102 Definitions
104 Application for Service
Type of Service & Limitations
Preliminary Notification
Obtaining Information
Residential/Commercial New Construction
105 Application for Removal
106 Service, Power Kill and Access Scheduling
Scheduling Reminders
Access to Company Pad Mounted Equipment
Power Kill Request
107 Line Extensions
Qualifications for Three-Phase Service
Overhead Line Extensions
Underground Line Extensions
Subdivision Line Extensions (Single & Three Phase Requirements)
High Density Development Designs
Additional Charges
New Subdivisions - Provisions for Service
New Subdivisions - Ducts for Road Crossing
108 Rights-of-Way and Easements
Registered Land Surveyor Information
Legal Description
Exhibit Drawing
Electronic File for Easement
109 Outline for Project Completion, Residential & Commercial
110 Additional Information
Codes & Regulations
Customer Installations
Access to Premises
Employee Identification
Protection of Company Property
Customer's Equipment
Resale of Energy
Attachments to Company Facilities
Energy Diversion
Un-metered Energy

Civil Installations– 200

Number Title
205 Duct and Concrete Installation
206 Tracer Wire Installation, 46kV Underground
207 Trench, Backfill
208 Site Preparation for Equipment Pads on Sloping Grades
209 Watch VideoTrenching, Underground Residential Distribution (URD)
210 Sleeve Installation
212 Trench and Duct Encasement, Drainageway Crossings
215 Trenching 2.5-inch, 4-inch, and 6-inch Conduit Installation
218 Duct Stub Detail
220 Underground Riser, Customer Installed
225 Distribution Pullbox with Manhole
226 Pullbox 15 kV with Lid (Reference Only)
230 Equipment Barrier, Protective
232 Excavation and Duct Placement for 3-Phase Fused Junction Cabinet (F2)
233 Transformer Pad Underground 3-Phase
234 Excavation and Duct Placement for 3-Phase Junction Cabinet (J2)
235 Excavation and Duct Plasement for 1-Phase Junction Cabinet (J1)
236 Excavation and Duct Plasement for 3-Phase Junction Cabinet (J6)
240 Excavation and Duct Placement for Switchgear Box Pad (PME)
241 Excavation and Duct Placement for Pad-Mounted Capacitor
242 Excavation and Duct Placement for Gas Insulated Switchgear Box Pad (Vista)
243 Equipment at Grade in Open Air Alcove

Service Installations – 300

Number Title
301 Entrance Facilities: Load Balancing, Typical Service Entrances, Socket Wiring
Electric Service Lines: Overhead Service Lines, Underground Service Lines, Service Trenches
304 Overhead or Underground Service and Meter Location
305 Service Entrance with Conduit Riser Overhead
307 Service Entrance on a Pole
308 Three-Phase Underground Service from Overhead, 600A or Less
308A Single-Phase Underground Service from Overhead, 400A
309 Three-Phase Underground Service from Pad-Mounted Transformer
310 Service Entrance Underground
312 Trenching, Service Single-Phase Watch Video
314 Service Entrance Temporary, Underground

Metering Installations – 400

Number Title
405 General RequirementsWatch Video
Requirements for Residential Socket Interiors
Meter Enclosures and Clear Working Space
408 Residential or Commercial (Restricted) Service 0-100A, 3W, 1Ø, Overhead and 0-30A, 2W, 1Ø Overhead or Underground
Residential Overhead Service, 3W, 1Ø, 101-200A
Residential Underground Service, 3W, 1Ø, 0-200A
Residential Service, 3W, 1Ø, 0-200A Combination Meter Socket and Distribution Section
Meter Post - Underground Service to Mobile Home
409 Service Pedestal for Use in Common Public Area & Right-of-Way, 0-200A, 0-600V
410 Commercial Service, 3W or 4W, 1Ø and 3Ø, 0-200A
412 Watch VideoResidential or Commercial Service, 3W, 1Ø, 201-400A
414 Socket Requirements - 1Ø w/Instrument Transformers
414 Socket Requirements - 3Ø w/Instrument Transformers
418 Residential and Commercial Multi-Metering Installations
419 Residential, High-Rise Building, Individually Metered Units
420 Meter Protective Cabinets
422 Current Transformer Installations in Cabinets
423 Meter Socket and Conduit Installation Detail for Primary Metered Service
424 Remote Meter Cabinet for primary metered service, 201 - 800A
425 Terminating Box or Section
426 Combination Terminating Box and Main Disconnect
429 Commercial CT Power and Control Cabinet, 400-800A
430 Current Transformer Installations in Switchgear
431 Metering Remote
432 Low Profile Switchboards
433 CT Compartment, 401-800A, 1Ø
434 CT Compartment, 201-1000A, 3Ø
435 CT Compartment, 1001-3000A, 3Ø
436 CT Compartment, 3001A-4000A, 3Ø
437 Enclosed Meter Panel in Raintight Switchgear
438 Switchboard Meter Panels
439 Removable Bus Links and CT Supports
451 Primary Metering Overhead and Underground
452 Approved Metering and Service Equipment

Short Circuit Protection – 500

Number Title
510 Short Circuit Protection

Grounding and Bonding– 600

Number Title
600 General Information, Introduction, NFPA 70 NEC, Grounding, Bonding (Unfused Areas)
601 Minimum Size of Bonding/Equipment Grounding/Grounding Electrode Conductors and Grounding Bus
602 Concrete Encased Electrode (Ufer Ground)
603 Single Phase Meter Pedestal
604 Single Phase Overhead Residential Service (Meter Socket and Load Center)
605 Single Phase Overhead or Underground Service (All in One)
606 Single Phase Overhead or Underground (Multi-Pak Service)
607 Single or Three Phase Overhead Service(Meter Socket and Disconnects)
608 Three-Phase Service Overhead or Underground (Pull Section, Raceway and Sockets)
609 Transformer Rated Service With CT CAN Overhead or Underground
610 Transformer Rated Service Switchgear Overhead or Underground

Customer Technologies - 700

Number Title
701 Installation and Operation of Interconnected Distributed Generation Sources (Including Emergency and Standby Systems)
702 Electric Service Requirements For Small Interconnected Distributed Generation Sources
703 Electric Service Requirements For Medium-Sized Commercial Interconnected Distributed Generation Sources
705 Metering Requirements for Distributed Generation Facilities Larger Than 300kW
709 Backup Generator Connection Requirements
710 Interconnection Requirements – Distributed Energy Storage Systems, Single-Phase

Telecommunication, Wireless & Cable TV Pole Attachments - 800

For complete information, visit the Telecommunication Pole Attachments page.

Number Title
801 General Attachment Specifications
Pole Details
Anchor & Guying Details
801A Telecommunications and Fiber Identification
802 Pole Mounted Small Cell Equipment
803 Stranded Mounted Small Cell Equipment
804 Service Entrance on Customer Owned Small Wireless Facility (SWF) or Light Pole
805 Riser Details, Telco/CATV

Clearances - 900

Number Title
901 Design Principles for Overhead Distribution Lines Near Public Facilities
910 Service Entrance Clearance from Gas Meter Regulator or Extension Vent

GIS Drawing Legend

Number Title
LEGEND Overhead/Underground Mapping Legend

Distributed Generation Interconnection Requirements (DGIRs)

View and download the DGIRs.

Partner in Success Videos

We have created videos with tips for commonly misunderstood steps in the installation and construction process.

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