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Voltage Drop Calculations
Voltage Drop Calculations

Voltage drop spreadsheet

The following voltage drop calculations were all based on the resistance values in Table 8 Chapter 9 of NEC (National Electrical Code). This spreadsheet only considers voltage drop. Many other factors affect wire size. Please refer to entire NEC when sizing wire.

Spreadsheet has three sheets beside main one with calculations:

  • Printable VD calculations
  • Printable Table Parallel wires
  • Printable Table 310-16
Software:Voltage Drop Calculator – Albany Technical College
Version:28.8.2004
Developer:Albany Technical College
Size:545 kB
Price:Free
Download:Right here | Get Download Updates | Get Technical articles
Voltage drop calculations
Voltage drop calculations

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Page edited by E.C. (Google).

4 Comments

  1. […] high voltage circuit should be carried as far as possible so that the secondary circuit have small voltage drop.Go to Content ↑ Voltage Regulation for 11KV, 22KV, 33KV Overhead Line% Voltage Regulation = […]


  2. Huned
    Dec 29, 2012

    The derating factors need to be included as a part of installation, also need to check for motor [running / starting] application.


  3. dsaint
    Nov 26, 2012

    Has anyone updated this program? I’ve been using it for a while and really like the way it works, but I’d love to have it updated for NEC 2008 & 2011..

  4. […] in all circuits, and in all components. When alternating current goes through an impedance, a voltage drop is produced that is somewhere between 0” and 90° out of phase with the current.Impedance is […]

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