Division 26 - Electrical - Master Specifications/Design Guidelines

​​DISCLAIMER:  These files are intended for use by consultants to the State of Wisconsin and by others for construction and remodeling of State owned facilities. The State of Wisconsin bears no liability nor responsibility for any other use of these specifications.

At the ​start of each project, consultants must download the current revision of all DFD files that apply to the project. There are two ways to download the files:

  1. Download individual files from DFD's Master Specification website. Right click on the file name and choose Save link as. Repeat this for all applicable files.
  2. Download multiple files simultaneously from DFD's file Transfer Protocol (FTP) site. Open your File Explorer program and type ftp://doaftp1380.wi.gov/master_spec​ into the address bar. Copy the applicable files to your computer. Division 01 files are not ava​ilable on the FTP site and must be downloaded from the Division 01 Master Specification website.​


Electrical - Design Guidelines - Division 26

​File Name​File Title​Rev. Date
Electrical Guidelines.docx​​Electrical System Standards & Design Guidelines​3/1/2023


Electrical - Master Specifications - Division 26

File NameFile TitleRev. Date
26 05 00.docx​Common Work Results for Electrical12/26/2023​
​26 05 02.docx​Electrical Demolition for Remodeling3/1/2021
​26 05 04.docx​Cleaning, Inspection and Testing Electrical Equipment3/1/2023
26 05 13.docx​Medium-Voltage Cables12/26/2023
26 05 19.docx​Low-Voltage Electrical Power Conductors and Cables​12/22/2021
26 05 23.docx​Control-Voltage Electrical Power Cables3/1/2021
​26 05 26.docx​Grounding and Bonding for Electrical Systems3/1/2023​
26 05 29.docx​Hangers and Supports for Electrical Systems3/1/2023​
26 05 33.docx​Raceway and Boxes for Electrical Systems3/1/2023​
​26 05 34.docx​Underground HDPE Pathways for Electrical Systems3/1/2021
​26 05 36.docx​Cable Trays for Electrical Systems3/1/2021
26 05 43.docx​Underground Ducts and Raceways for Electrical Systems3/1/2023
26 05 44.docx​Manholes​3/1/2023
​26 05 53.docx​Identification for Electrical Systems3/1/2023
​26 05 73.docx​Short Circuit/Coordination Study & Arc Flash Risk Assessment7/1/2021
26 08 00.docx​Commissioning of Electrical​3/1/2021
​26 09 19.docx​Enclosed Contactors3/1/2021
26 09 28.docx​Lighting Control Panels3/1/2021
26 09 43.docx​Distributed Digital Lighting Controls3/1/2023​
26 12 13.docx​Medium-Voltage Transformers, Liquid Filled Substation Style (Indoor)3/1/2023
26 12 16.docx​Medium-Voltage Transformers, Dry-Type, (Indoor)3/1/2023
​26 12 19.docx​Medium-Voltage Transformers, Liquid-Filled, Pad-Mounted (Outdoor)3/1/2021
26 13 02.docx​Medium-Voltage Pad Mounted Switchgear (Outdoor)3/1/2021
26 13 16.docx​Medium-Voltage Fusible Interrupter Switchgear3/1/2021
26 18 23.docx​Medium-Voltage Surge Arresters3/1/2023
26 22 00.docx​Low-Voltage Transformers3/1/2021
26 24 13.docx​Switchboards3/1/2023​
26 24 16.docx​Panelboards3/1/2023​
26 27 02.docx​Equipment Wiring Systems3/1/2023
​26 27 13.docx​Electricity Metering3/1/2023​
26 27 26.docx​Wiring Devices3/1/2023​
26 27 28.docx​Disconnect Switches3/21/2022​
26 27 29.docx​Elevator Distribution Equipment3/1/2023
26 28 13.docx​Fuses3/1/2021
26 28 16.docx​Enclosed Switches and Circuit Breakers3/1/2021
26 29 00.docx​Low-Voltage Controllers3/1/2021
26 32 13.13.docx​Engine-Driven Generator Sets - Diesel3/1/2023
​26 32 13.16.docx​Engine-Driven Generator Sets - Natural Gas [LP]3/1/2023
26 36 00.docx​Transfer Switches11/13/2023
​26 41 13.13.docx​Lightning Protection for Buildings3/1/2023​
​26 41 13.14.docx​Lightning Protection for Buildings - Roof Level Upgrade3/1/2023​
26 43 13.docx​Surge Protective Devices for Low-Voltage Electrical Power Circuits3/1/2021
26 51 13.docx​Interior Lighting Fixtures, Lamps, and Ballasts3/21/2022​
26 56 29.docx​Site Lighting​​3/1/2021


Electrical - Master Details - Division 26

File Name​File Title​Rev. Date
26 05 23 Details.zip​Control-Voltage Electrical Power Cable Details​​3/1/2021
26 05 26 Details.zip​Grounding and Bonding for Electrical Systems Details​3/1/2021
26 05 33 Details.zip​Raceway and Boxes for Electrical Systems Details​3/1/2021​
​26 05 43 Details.zip​Underground Ducts and Raceways for Electrical Systems Details​3/1/2021
26 05 44 Details.zip​​Manhole Details​9/12/2023
26 09 43 Details.zip​Distributed Digital Lighting Controls Details​3/1/2021
26 12 19 Detail.zip​Medium-Voltage Transformers, Liquid-Filled, Pad-Mounted Detail​3/1/2021
26 13 02 Detail.zip​​Medium-Voltage Pad Mounted Switchgear Detail​3/1/2021
26 27 13 Detail.zip​​Electricity Metering Detail​3/1/2021
26 27 26 Detail.zip​Wiring Device Details​3/1/2021
26 51 13 Detail.zip​Interior Lighting Fixtures, Lamps, and Ballasts Details​3/1/2021
26 56 29 Detail.zip​​Site Lighting Details​​3/21/2022​
Typical Equipment Naming.zip​Typical Equipment Naming Conventions​3/1/2021
Typical Equipment Wiring Schedule.zip​Typical Equipment Wiring Schedule​3/1/2021
Typical Luminaire Schedule.zip​​Typical Luminaire Schedule​3/1/2021
Typical One-Line.zip​​Typical One-Line Diagram​3/1/2021
​Typical Panel Naming.zip​​Typical Panel Naming Conventions​3/1/2021
Typical Panelboard Schedule.zip​Typical Panelboard Schedule​3/1/2021