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Electric Service Manual for Michigan
The information provided in this manual is in addition to any other regulations which may apply, including various municipal
electric codes and the Michigan Administrative Code. We reserve the right to make revisions in these rules.
*Note Section 3 and Appendix A were updated in March of 2024 to reflect changes due to Michigan adopting the 2020 and 2023 NEC Electrical Code.
For questions on the process of requesting new service please visit our New Service page.
Section | Title | Revision Date |
|---|---|---|
Section 1 | Introduction | 08/2021 |
| 1-1 | Purpose | |
| 1-2 | Territory Maps | |
| 1-3 | Contact Information | |
Section 2 | Clearances | 08/2021 |
| 2-0 | Clearances | |
| 2-1 | Basic Electric Clearances - Services | |
| 2-2 | Miscellaneous Clearances | |
| 2-3 | Antenna Clearances | |
| 2-4 | Location of Pad mount Transformers Near Buildings | |
| 2-5 | Working Clearances / Protective Posts for Pad mount Transformers | |
| 2-6 | Multiple Metering | |
| 2-7 | Residential Deck / Other | |
| 2-8 | Unmetered Street Lighting Decorations | |
| 2-9 | CATV Power Supplies | |
Section 3 | General Metering and Services | 05/2025 |
| 3-1 | Company Metering Policies | |
| 3-2 | General Metering Requirements | |
| 3-3 | Multiple Occupancy Metering / Cell Towers | |
| 3-4 | Meter Protection from Snow and Ice | |
Section 4 | Single-Phase Metering | 04/2025 |
| 4-1 | Overhead Service Requirements | |
| 4-2 | Underground Service Requirements | |
| 4-3 | Services 400-800 Amp - CT Metering | |
| 4-4 | Overhead Service - Meter Poles/Posts | |
| 4-5 | Mobile Home Services | |
| 4-6 | Temporary Services/Construction Power | |
| 4-7 | 120/208 Volt Service (100-200 Amp) | |
Section 5 | Three-Phase Metering | 02/2025 |
| 5-1 | General Three-Phase Requirements | |
| 5-2 | 200 Amp - 320 Amp Three-Phase Overhead | |
| 5-3 | 400 Amp - 3000 Amp Three-Phase Overhead - CT Metered | |
| 5-4 | 200 Amp - 320 Amp Three-Phase Underground | |
| 5-5 | 400 Amp - 3000 Amp Underground - CT Metered in Pad mounted Transformer | |
| 5-6 | 400 Amp - 3000 Amp Underground - CT Metered in CT Cabinet | |
| 5-7 | Space Required to Terminate in Service Entrance Panels & Switchgear | |
| 5-8 | Termination Enclosures | |
| 5-9 | Large CT Installation, Bus Bars - 2500-3000 Amp - Meter in Switchgear | |
| 5-10 | Large CT Installation, Doughnuts - 2500-3000 Amp - Meter in Switchgear | |
| 5-11 | Standard Pad for 75-2500 KVA Pad mount Transformers | |
| 5-12 | Large Concrete Pad for 3750-5000 KVA Pad mount Transformers | |
| 5-13 | Primary Metering | |
Section 6 | Policies, Code, Miscellaneous | 08/2021 |
| 6-1 | Company Policies - General | |
| 6-2 | Company Policies - Utilization of Equipment | |
| 6-3 | State Regulatory Agencies | |
Section 7 | Interconnects and Distributed Generation | 08/2021 |
| 7-1 | Standby Generation | |
| 7-2 | Parallel Generation | |
Appendix A | UPPCO Meter Base Requirements | 03/2024 |
| A-1 | 100-200 Amp Single-Phase UG | |
| A-2 | 100-200 Amp Single-Phase UG with Main | |
| A-3 | 100-200 Amp Single-Phase OH | |
| A-4 | Multi-occupancy dwelling | |
| A-5 | 320 Class / 400 Amp Single-Phase OH | |
| A-6 | 320 Class / 400 Amp Single-Phase UG | |
| A-7 | 320 Class / 400 Amp Single-Phase UG with two 200A Main Breakers | |
Appendix B | Reference of Helpful Information | 08/2021 |
| B-1 | State Code Information | |
| B-2 | Lightning Protection | |
| B-3 | Energy Conversion Factors | |
| B-4 | Basic Calculations | |
| B-5 | Maximum Fault Currents | |
| B-6 | Mobile Home Services | |
| B-7 | Multiple Metering | |
| B-8 | Conduit Policy for Underground Services | |
| B-9 | Fire Protection Systems Codes | |
Appendix C | Maintenance Only Information | 08/2021 |
| C-1 | Residential Electric Water Heater Service Entrance (Maintenance Only) | |
| C-2 | 120 Volt Meter Socket (Maintenance Only) | |
| C-3 | Foundation Penetrations |
