for Commercial and Industrial Applications

1-Line 2023 is a full function design package that will simplify the time consuming task of preparing 1-line drawings, panel schedules, and load calculations. Simply input the loads for your sub panels and the program will create a 1-line drawing.

With this program you may have up 24 panels fed from the main switchboard. Each panel may have a sub panel or transformer & sub panel.

Load Calculation Software

for Multifamily Dwellings & Duplex Dwellings  

Residential 1-Line 2023 is a full function design package that will simplify the time consuming task of preparing 1-line drawings, panel schedules, and load calculations. Simply input the loads for your sub panels and the program will create a Residential 1-line drawing.

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The all new Edition of the Electrical Contractor's Labor Units Manual is now available from Durand & Associates

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