Appendix 9C: Design Calculations for Electrical Design

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Chapter 9 Electrical Design SPU Design Standards and Guidelines November 2020 i Appendix 9C Design Calculations for Electrical Design Chapter 9 Electrical Design Appendix 9C Design Calculations for Electrical Design ii SPU Design Standards and Guidelines November 2020 Contents 1. Introduction ........................................ ........................................ ................. 1 2. Software ........................................ ........................................ ....................... 1 3. Calculation Matrix ........................................ ........................................ ...... 2 4. Basic Requirements for Electrical Calculations ....................................... 4 5. Basic Electrical Engineering Formulas ........................................ ............. 4 List of Symbols.

Fill/Tray Size To size conduit and cable tray per NEC NEC Tables, Cablematic Plus X X 60 and 90 Voltage drop For heavily loaded and/or long circuits to confirm operation within NEC recommendations (min) SKM PTW DAPPER, spreadsheets, hand calcs X X 60 and 90 Transient Motor Starting For starting large motors (largest motor at each load

  Tray, Drop