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Version 6.10
General Information
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Volts Features
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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
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One Line Diagrams
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Short Circuit Analysis
Surge Protection Analysis
 
Formulae & Methods
Voltage Drop Formulae
Conductor Sizes
Ohm's Law Formulae
SI Units
Cable Tray Fill
     
The Cable Tray Sizing Module utilizes NEC® specifications 392.9(A)1-3, 392.9(B), 392.9(C)1-3, 392.9(D), 392.9(E)1-2, 392.9(F), 392.10(A)1-4, 392.10(B), 392.11(B)3, 392.12 and 392.13(B) for its calculations.
     
 

     
 

The module performs calculations of both multi-conductor cables and single conductors dependent on conductor size, insulation type, diameter and usage with a very simple user interface.

Both the conductor's and cable's sections are integrated into Volts' conductors and cables databases. These databases are 100% user definable. Although the conductor's database is derived from NEC® Chapter 9, Table 8 and Table 310-13 specifications, they can be fine tuned to suit your exact requirements.

The cable tray selections are congruent with NEC® Section 392.9 and include ladder, ventilated trough, solid bottom, ventilated channel and solid channel cable trays utilizing their standard sizes also described in Section 392.9.

Simply select either a conductor or cable, add them to the selected items display, select a cable tray type and press the equal button. Volts' cable tray sizing module correctly displays the cable tray size, the corresponding NEC® Section utilized in its calculations and any additional regulations required.

A very informative and graphical report can be obtained after the analysis calculation is accomplished. Additionally, the entered cable / conductor information can be saved and retrieved for future comparison or analysis.

Cable trays can also be sized 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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