2021 Electric Service Rules GENERAL INFORMATION TEMPORARY SERVICES OVERHEAD SERVICES UNDERGROUND SERVICES DISTRIBUTED GENERATION METERING HUD MANUFACTURED HOMES FARM SERVICES UTILITY/CATV SERVICES PRIMARY SERVICES SPECIAL SERVICES AND MOTORS OPTIONAL STANDBY GENERATION CLEARANCES GROUNDING AND BONDING ELECTRIC VEHICLES © 2021 Alliant Energy 885247 11/20 AM Version 17 Updates to this manual may be necessary throughout the year. Please see www.alliantenergy.com/servicemanuals for the most up-to-date information. ELECTRIC SERVICE RULES Issued Jan 2021 C a l l B e f o r e Y o u D i g DIGGERS HOTLINE, Telephone Numbers, Alliant Energy Web Site Information & Cable Locating Services ALLIANT ENERGY IP&L/WP&L TELEPHONE NUMBERS Electric Service: 1-800-862-6222 or 1-800-ALLIANT Outage Reporting: 1-877-740-5050 or 1-800-ALLIANT PRE-EXCAVATION TELEPHONE NUMBERS Pre-Excavation Call Number All Areas - 811 Iowa – Iowa One Call: 1-800-292-8989 Wisconsin – Diggers Hotline: 1-800-242-8511 ALLIANT ENERGY WEBSITE Key in Web Site www.alliantenergy.com/servicemanuals C a l l B e f o r e Y o u D i g Page i ELECTRIC SERVICE RULES Issued Jan 2021 TABLE OF CONTENTS - ESR Revision Date: January 2021 CHAPTER 1 – GENERAL INFORMATION...... UPDATED JULY 2021 Page 100. General ...................................................................................................................... 1-1 101. Purpose ..................................................................................................................... 1-1 102. Scope ........................................................................................................................ 1-1 103. Codes and Rules ...................................................................................................... 1-1 104. Word Application ....................................................................................................... 1-2 105. Continuity of Service ................................................................................................. 1-2 106. Point of Service ......................................................................................................... 1-2 107. Application for Service ............................................................................................... 1-3 108. Service Voltages and Maximum Amperage .............................................................. 1-4 109. Number of Services ................................................................................................... 1-5 110. Short Circuit Duty Requirements ............................................................................. 1-10 111. Inspections and Maintenance .................................................................................. 1-12 112. Service Connections ............................................................................................... 1-12 113. Identification of Conductors ..................................................................................... 1-12 114. Changes to Existing Service-Entrance Equipment .................................................. 1-12 115. Alliant Energy Equipment on Customer Premises .................................................. 1-13 116. Capacity .................................................................................................................. 1-13 117. Sequence of Disconnecting Service and Meter ...................................................... 1-14 118. Customer Installation ............................................................................................... 1-14 119. Communication Tower Installation .......................................................................... 1-15 CHAPTER 2 - TEMPORARY SERVICE 200. General ...................................................................................................................... 2-1 201. Overhead Temporary Service, 1PH, 3-Wire, 120/240V, 200A Max ................ 2-2 & 2-3 202. Underground Temp./Perm. Service, 1PH, 3-Wire, 120/240V, 200A Max.................. 2-4 203. Underground Temporary Service, 1PH, 3-Wire, 120/240V, 200A Max ..................... 2-5 204. Underground Temporary Service, 1PH, 3-Wire, 120/240V, 200A Max ..................... 2-6 205. Large Temporary Service, 1PH or 3PH ..................................................................... 2-7 Page ii ELECTRIC SERVICE RULES Issued Jan 2021 CHAPTER 3 – OVERHEAD SECONDARY SERVICE Page 300. Scope ........................................................................................................................ 3-1 301. Attachment of Service Drops ..................................................................................... 3-1 302. Service Riser Requirements ...................................................................................... 3-1 303. Service Mast Construction ........................................................................................ 3-2 304. Service Mast Installation ........................................................................................... 3-3 305. Wall or Through-The-Roof Installation ...................................................................... 3-4 306. Pole Mounted Service Entrance – Optional Construction ......................................... 3-5 CHAPTER 4 – UNDERGROUND SECONDARY SERVICE 400. Scope ........................................................................................................................ 4-1 401. General Information ................................................................................................... 4-1 402. Sizing Underground Facilities .................................................................................... 4-1 403. Location of Alliant Energy Secondary Voltage Cables .............................................. 4-2 404. Underground Service Installations ............................................................................ 4-2 405. Outdoor Meter Socket, 1PH &r 3PH .......................................................................... 4-4 406. Outdoor Meter Pedestal Service, Single or Duplex, 1PH & 3PH .............................. 4-5 407. Rigid Conduit ............................................................................................................. 4-6 408A. Concrete Pad Specifications and Layout for 3PH, Pad-Mount Transformers............ 4-8 408B. Concrete Pad Specifications and Layout for 1PH, Pad-Mount Transformers............ 4-9 409. Concrete Specifications and Layout for Foundation Wall for 3PH, PM Trf .............. 4-11 410. Concrete Pad Specifications & Layout for 3PH, PM Trf and Metering TC .............. 4-13 411. Concrete Pad Specifications & Layout for Joint Pad, 3PH, PM Trf & Metering TC.. 4-15 412. Non-Preferred Option: Box Pad Specification for 3PH, Pad-Mount Transformers .. 4-19 413. Box Pad Specification for 1PH, Pad-Mount Transformers ....................................... 4-20 Page iii ELECTRIC SERVICE RULES Issued Jan 2021 CHAPTER 5 – DISTRIBUTED GENERATION Page 500. Scope ........................................................................................................................ 5-1 501. Permission to Interconnect ........................................................................................ 5-1 502. Technical Information ................................................................................................ 5-1 503. Metering Equipment .................................................................................................. 5-2 504. Alliant Energy Distribution System ............................................................................ 5-2 505. Primary Metering Customers with DG ....................................................................... 5-2 506. Optional Standby Generator used with DG ............................................................... 5-2 507. Labeling Requirements ............................................................................................. 5-2 508. Point of Interconnection ............................................................................................. 5-3 509. Interconnection Disconnect Switch Requirements .................................................... 5-3 510. Battery Energy Storage Systems .............................................................................. 5-4 511-523 Drawings ............................................................................................................... 5-4 511. 1PH/3PH, Self-Contained, Single Lug Main + DG Breaker ≤ 120% Of Service Panel Bus Rating .................................................................................... 5-5 512. 1PH/3PH, Self-Contained, Single Lug Main + DG Breaker > 120% Of Service Panel Bus Rating ..................................................................................... 5-5 513. 1PH/3PH, Self-Contained, Approved Alternate Energy Meter Socket, 200 Amp Main, 60-70 Amp DG Breaker (See ESE 106A) ......................................... 5-6 514. 1PH/3PH, Self-Contained, Approved Dual Lug Meter Socket (See ESE 106B) ....... 5-6 515. 1PH/3PH, Self-Contained, Single Lug Main + DG/ Remote Building≤ 120% Of Service Panel Bus Rating Remote Building With DG > 30’ From Meter ............. 5-7 516. 1PH/3PH, Self-Contained, Dual Lug Main + DG/Remote Building > 120% Of Service Panel Bus Rating Remote Building With DG > 30’ From Meter ............. 5-7 517. 1PH/3PH, Metering Transformer Cabinet, Main + DG Breaker, ≤ 120%