Calculated Industries ElectriCalc Pro User Manual

Also see for ElectriCalc Pro: Pocket reference guide

Contents

2 — electricalc® ProAMPACITY WIRE SIZING ....................................................................30Wire Sizing Based on Insulation Rating ............................................31Re-Sizing Wire Based on Different Insulation Ratings......................32Wire Sizing Based on Ambient Temperature ....................................32Wire Sizing Based on Material Type .................................................34Sizing Parallel Conductors ................................................................35Finding Derated Wire Size ................................................................36Sizing Temperature-Adjusted Derated Wires ....................................36VOLTAGE DROP ..................................................................................38Finding Single-Phase Voltage Drop ..................................................38Finding Three-Phase Voltage Drop...................................................39Finding Voltage Drop Wire Size ........................................................40Finding Voltage Drop Distance .........................................................41Finding Voltage Drop Resistance......................................................43GROUND CONDUCTOR WIRE SIZE ..................................................44EQUIPMENT GROUNDING COUNDUCTOR WIRE SIZE ...................45FUSE AND CIRCUIT BREAKER SIZE .................................................45STARTER SIZE ....................................................................................47OVERLOAD PROTECTION SIZE ........................................................47CONDUIT SIZE ....................................................................................48Finding Motor Branch-Circuit Wire Size and Conduit Size —Same Wire Type and Size ................................................................49Finding Conduit Sizes For Multiple Conductors —Same Wire Type and Size ................................................................50Finding Number of Wires in Existing Conduit —Same Size, Various Types ..............................................................51Finding Conduit Size —Multiple Conductors, Different Wire Sizes and Types .......................52CONVERTING KILOWATT-HOUR AND BTU.......................................53PARALLEL RESISTANCE ....................................................................54aPPenDIX a — DeFaUlt SettiNGS .............................................55aPPenDIX b — preFereNce SettiNGS ....................................56aPPenDIX C — 2011 Nec reFereNceS ......................................57aPPenDIX D — care iNStrUctioNS ..........................................57aPPenDIX e — accUracY/errorS,aUto SHUt-oFF, BatterieS, reSet ...........................................58RePaIR anD ReTuRn......................................................................60WaRRanTy .......................................................................................61(cont’d)