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Version 6.10
General Information
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Volts Informative Downloads
 
Volts Features
Help Movies - How To Do's
All Volts Features
Branch Circuit Load Calcs
Circuit Layout
Cable Tray Fill
Circuit Load Analysis
Conduit Fill
Device and Metal Box Fill
Efficiency Factor
Motor Ampacity and Characteristics
Motor Startup Ampacity
Ohm’s Law
Power Factor
Power Factor Correction
Resistor Color Codes
Series Location Voltage Drop
Transformer Sizing
Unit Conversions
Utility Transformer Values
Wireway Fill
 
Databases
Cables
Circuit Breakers
Conductors
Device and Metal Boxes
Fuses
Items
 
Reports
Arc Blast Pressure
Arc Flash Labels
Custom Reports
One Line Diagrams
Panel Schedules
Report PDF Samples
Short Circuit Analysis
Surge Protection Analysis
 
Formulae & Methods
Voltage Drop Formulae
Conductor Sizes
Ohm's Law Formulae
SI Units
Conduit Fill
     
The Conduit Fill module utilizes the specifications in NEC® Chapter 9, NEC® Tables1, 4 and 5 and Tables 1 through 12 in Annex C (NEC® Appendix C) for its calculations.
     
 

     
 

The calculations for both similar and dissimilar cables and or conductors and insulation types in the same raceway are performed with a very simple and fast user interface.

The analysis module is divided into 3 sections, the left section for selection of cables or conductor insulation type and size, the upper section for calculating dissimilar conductors and the bottom section for similar conductors.

Volts' Cables and Conductors / Insulations Databases supply the necessary diameter dimensions utilized in the Dissimilar Conductors analysis section. Like all of Volts' databases, any change or addition will be immediately utilized in Volts' computations.

After items are "Added" to the accumulated list and the Equal button is pressed, Volts displays the following:

  • Minimum conduit size
  • Conduit area
  • Cable / Conductor area
  • % Fill actual
  • % Fill remaining
  • Fill area remaining

Of course the conduit size can be increased with all resulting results updated to reflect the increased size. Additionally, any fill factor can be used by either dissimilar or similar conductors calculators to accommodate for special seal off requirements and the results can be displayed in either units of inches or millimeters. Entered cable or conductor information can be saved and retrieved for future comparison or analysis.

Conduit type raceways can also be size from Volts' main circuit load analysis module as part of the worksheet.

     

It simply cannot be any easier or more accurate to obtain the correct information the first time.

 

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Reprinted with permission from NFPA 70 2008, NEC® copyright© 2008, National Fire Protection Association. This is not the complete and official position of the NFPA on the referenced subject which is represented only by the standard in its entirety. The title National Electric Code® and the acronym NEC® are registered trademarks of the National Fire Protection Association (NFPA).

Volts is a registered trademark of Dolphins Software

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