Appendix 9C: Design Calculations for Electrical Design
Chapter 9 Electrical Design Appendix 9C Design Calculations for Electrical Design SPU Design Standards and Guidelines November 2020 5 5.2 DIRECT CURRENT (DC) FORMULAS Basic Formulas Volts V = I x R Power in watts P V I P I R = × = 2 × 5.3 ALTERNATING CURRENT (AC) SINGLE PHASE V denotes line to neutral voltage. Basic Formulas Volts V =I ×Z
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