Electrician Calculators
The premiere site for online electrical calculators and programs
from the National Electrical Resource Center

 

Dear Users:

I have provided a free service to over 20 computer programs for over 15 years.  The time required to write these programs was well over 3000 hours.  I now need funds to continue doing this.  Sorry about this but costs have risen.

Gerald Newton 

 

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 Description

Download Code Calculators

(may require turning off your virus software)

Window 10 users  First download the zip file at bottom in right frame and install PowerPacks 10.0

Note: After downloading the zip file double click it in the folder to unpack then double click the PowerPack program.

REVISED to the 2017 NEC!  Code Calculators

ASHRAE Design Temperatures for 843 cities added for Above Roof installations!

Brought to you by the
National Electrical Resource Center
an authenticated publisher of software
Microsoft Installer says the Publisher is "unknown" but this is a lie.  To make it say Publisher: National Electrical Resource Center they require
that I pay $500 to a third party seller of Code Signatures. 
This is a well crafted rip off sponsored by Microsoft.

This program does not include any hidden programs, malware, search utilities advertising, or viruses.  It is written with Visual Studio 2010.  It installs an icon on your desktop and allows you to open and run run several applications at the same time.  It can be easily uninstalled using the Control Panel.

Click here to see screenshots of Code Calculators

Now updated to the 2014 NEC.  Includes over a hundred changes made to the 2014 NEC.  This program suite has over 12,000 lines of code and took over 2,000 hours to write.  I originally started writing the Table 310.15(B)(16) (310.16) program in 1996 using Excel, then JavaScript in about 2005, and then Visual Basic in 2008.

Tested on Windows XP. Windows Vista, Windows 7, and Windows 8.

Includes the new fully rewritten Raceway and Trough fill Calculator and revised Table 310.15(B)(16) calculator.

The raceway fill calculator finds the minimum raceway and wireway and auxiliary gutter sizes.   Thirteen types of raceways can be selected.  It also includes a Custom Fill selector so any percent fill can be selected for those jobs where the specs specify more stringent fill than the NEC requires.

Includes ALL wire sizes and insulations from Chapter 9 Tables 5 through 8 plus bare compact conductors from Table 5A.

Includes the New 2014 NEC dimensions for Electrical Nonmetallic Tubing.

Includes the following insulations and bare conductors (63 in all)

Bare compact, Bare solid, Bare stranded, FEP, FEPB, FFH-2, KF-1, KF-2, KFF-1, KFF-2, PAF, PAFF, PF, PFA, PFAH, PFF, PGF, GFF, PTF, PTFF, RFH-1, RFH-2, RFHH-2, RHH, RHH *, RHH* compact, RHW, RHW *, RHW* compact, RHW-2, RHW-2 *, SF-1, SF-2, SFF-1, SFF-2, TF, TFE, TFF, TFFN, TFN, THHN, THHN compact, THHW, THHW compact, THW, THW compact, THW-2, THWN, THWN-2, TW, USE compact, XF, XFF, XHH, XHHW, XHHW compact,  XHHW-2, Z, ZF, ZFF, ZHF, ZW

Does any up to 12 combinations of cables and wire types.

*******************************************************************************

Code Calculators includes a Main Menu where these five programs can be selected.  All five can be opened at the same time.

(1)  Raceway and Tough (wireways and auxiliary gutters) fill program

(2)  Voltage Drop using standard DC method

(3)  Table 310.15(B)(16) program with voltage drop. Values from the Table calculator are automatically sent to the voltage drop calculator that has a button to increase in size to lower voltage drop.

(4)  3-phase Voltage Drop program using NEC Chapter 9, Table 9 for aluminum and copper conductors in PVC, aluminum, and steel raceways - performs 6 different calculations at once for comparison.

(5)  Power, Watts, Amperes calculation programs. 

Explanatory notes and examples are included.

 If Windows has been Updated all the .NET Framework components should already be installed.  Microsoft Visual PowerPacks 10.0 is downloaded for installation with this package.

The following prerequisites are required:
 
  • Windows Installer 3.1
  • Microsoft Visual Basic PowerPacks 10.0
  • Microsoft .NET Framework 4 Client Profile (x86 and x64)  (41 MB)

These prerequisite files are available in zipped format from:

http://www.electriciancalculators.com/codecalc_3/codecalc.zip

(This is a 44 megabyte file)

  

The below Calculators are written in JavaScript.

They run in a web page using Java enabled Browsers.

 

3-Phase Voltage Drop Calculator with Power Factor This JavaScript calculator runs in a web page. It uses Table 9 and Table 8 data to calculate 8 different voltage drops for comparison.  For 3-phase, 3 wire in PVC, Aluminum, and Steel conduit.
Compact Conductor
 Raceway Fill
This webpage calculator is still online but a more complete raceway and trough fill application is included in the Code Calculator suite.

Select the wire insulation, wire size, number of conductors, type of raceway, fill type either 25 per cent, 60 per cent or auto and this program finds the correct raceway size.  When only three conductors of the same size are selected the jamming ratio is calculated and the user is alerted if the jamming ratio is between 2.8 and 3.2 and the user is given the choice of upsizing the raceway per Chapter 9 Table 1 FPN 2.   Five unique compact conductor sizes can be entered.

Range Calculator Select range ratings from 1 3/4 KW to 27 KW  and number of ranges and this program determines the demand load using Table 220.55 and Notes 1, 2 , and 3.  Loads for up to 1000 ranges can be determined.   Twelve examples from the NEC, textbooks, and the author are included.
Table 310.15(B)(16) Conductor Size  

This webpage calculator is still online but a better NEC Table 310.15(B)(16) application is included in the Code Calculator suite.

Enter the continuous and noncontinuous load then select the conductor insulation, terminal temperature, ambient temperature, number of current carrying conductors and this program finds the correct wire size and maximum and minimum over current protective devices and the respective size of the equipment grounding conductors.  Also includes special condition buttons for nipples, AC/MC cable, equipment rated for continuous loads, and circuit is for receptacles for cord and plug connected equipment.  Conductor size is automatically adjusted to the conditions according to the NEC.  Results are automatically entered into a voltage drop calculator that calculates voltage drop with an option to increase wire size and proportionately increase the equipment grounding conductor size.  Examples and notes on how programs operates are included. 

Table 310.15(B)(16) Load Select the wire size, conductor insulation, terminal temperature, ambient temperature, number of current carrying conductors and this program finds the permitted load and maximum and minimum over current protective devices and the respective size of the equipment grounding conductors.  Also includes special condition buttons for nipples, AC/MC cable, and circuit is for receptacles for cord and plug connected equipment.  The permitted load is automatically adjusted to the conditions according to the NEC.  Results are automatically entered into a voltage drop calculator that calculates voltage drop with an option to increase wire size and proportionately increase the equipment grounding conductor size.  Notes on how programs operates are included. 
Table 310.15(B)(16) Parallel Select the wire size starting at 1/0 AWG, number of conductors in parallel, conductor insulation, terminal temperature, ambient temperature, number of current carrying conductors and this program finds the permitted load and maximum over current protective devices and the size of the equipment grounding conductors.  Also includes special condition button for nipples.  The permitted load is automatically adjusted to the conditions according to the NEC.  Results are automatically entered into a voltage drop calculator that calculates voltage drop with an option to increase wire size and proportionately increase the equipment grounding conductor size.  Notes and example on how programs operates are included. 
Motor Branch Circuit Select motor hp from 1/6 to 450 hp, phase, type of motor, class of service, duty cycle, conductor material type, ambient temperature, number of current carrying conductors in raceway or cable, conductor insulation type, terminal temperature, service factor, and temperature rise.  This program then determines motor branch circuit parameters that include wire size, short-circuit and ground-fault protective device normal and maximum values for all four types, conductor size, overload protection size, disconnect size, controller NEMA size, and equipment grounding conductor size when the motor nameplate full load amperes value is entered.  Required results are automatically entered into a voltage drop calculator at bottom of page where voltage drop can be calculated that permits increasing the conductor size to lower voltage drop.
Raceway Fill

(not for compact conductors)

This webpage calculator is still online but the raceway and trough fill application shown above is much more complete.

Select the wire insulation, wire size, number of conductors, type of raceway, fill type either 25 per cent, 60 per cent or auto and this program finds the correct raceway size.  When only three conductors of the same size are selected the jamming ratio is calculated and the user is alerted if the jamming ratio is between 2.8 and 3.2 and the user is given the choice of upsizing the raceway per Chapter 9 Table 1 FPN 2.   Five unique conductors can be entered.

Extended Raceway Fill This is the same as the raceway fill calculator except the number of unique conductors is entered and a calculator for any number of conductors is custom built in the lower frame.  Then select the wire insulation, wire size, number of conductors, type of raceway, fill type either 25 per cent, 60 per cent or auto and this program finds the correct raceway size.  When only three conductors of the same size are selected the jamming ratio is calculated and the user is alerted if the jamming ratio is between 2.8 and 3.2 and the user is given the choice of upsizing the raceway per Chapter 9 Table 1 FPN No. 2.   Any number of unique conductors can be entered.
Cable Raceway fill Enter the number of unique cables and a calculator for the cables is custom built in the lower frame.  Then enter the diameter for each cable, select number of cables, type of raceway, fill type either 25 per cent, 60 per cent or auto. This program finds the correct raceway size. 
Voltage Drop Select the material either copper or aluminum, the size of the conductor, the voltage and phase from a list of common voltages, then enter the one way circuit length in feet, and load in amperes.  This program finds voltage drop, per cent voltage drop, and volts at end of circuit.
Voltage Drop for any voltage Select the material either copper or aluminum, the size of the conductor, then enter the voltage, the one way circuit length in feet, and load in amperes.  This program finds voltage drop, per cent voltage drop, and volts at end of circuit.
Minimum conductor Size for Given Voltage Drop Select the material either copper or aluminum, the size of the conductor, the voltage and phase from a list of common voltages, then enter the maximum voltage drop in per cent and load in amperes.  This program finds minimum conductor size, voltage drop and volts at end of circuit.
Maximum Length for Given Voltage Drop Select the material either copper or aluminum, the size of the conductor, the voltage and phase, then enter the volts, maximum voltage drop in per cent and load in amperes.  This program finds maximum conductor length in feet and volts at end of circuit.
Power Calculator P=ExI Enter power factor and select single or three phase and kilowatts or watts then enter any two values of power, volts, or amperes and calculate the remaining answer.
Power Calculator P=ExE/R Enter power factor and select single or three phase and kilowatts or watts then enter any two values of power, volts, or resistance and calculate the remaining answer.
Power Calculator P=IxIxR Enter power factor and select single or three phase and kilowatts or watts then enter any two values of power, amperes, or resistance and calculate the remaining answer.
Ohm's Law  Enter any two values of Volts, amperes, or resistance and calculate the remaining answer.
Grounding Conductor Size This program reads NEC Table 250.122.  Select the overcurrent protective device from the list that includes the standard overcurrent protective device sizes from Section 240.6(A) and this program finds the sizes of both the copper and aluminum equipment grounding conductors.
Grounding Electrode Conductor Size This program reads NEC Table 250.66.  Select the size of largest copper service entrance conductor or equivalent area for parallel conductors from the list or select size of largest aluminum service entrance conductor or equivalent area for parallel conductors from the list and this program finds the sizes of either the copper or aluminum equipment grounding electrode conductors.
Overcurrent Protective Device Size This program reads NEC Section 240.6(A) that lists the standard sizes for circuit breakers and fuses.  Select to size up or down and enter the amperes and this program finds the size of the overcurrent protective device.
Cable Tray Pulling Tension This program is very extensive and is used to set up long cable pulls in cable tray.  Examples are included.
Raceway Pulling Tension This program is extensive and is used to determine pulling tension when pulling conductors into raceways.  Examples are include.
Offset Distance Between Bends and Developed Length This program is calculates the precise distance between bends using trigonometry and does not use the inaccurate Benfield method.  A developed length calculator is also included.
Neutral Current from three phase loads and more Calculates Neutral Current and distance between bends for bending offsets using the Benfield Method.
Advanced Voltage Drop This program calculates voltage drop by finding the actual approximate operating temperature of the conductor and using the conductor's resistance at this temperature.
The author of all the computer programs and JavaScript Calculators, not otherwise credited,  shown on this page is Gerald Newton.

Gerald Newton is a licensed electrician/electrical administrator with 32 years experience.  He was also a State of Alaska Electrical Inspector from 1988 to 1996 where he performed over 4,000 NEC or NESC electrical inspections at Prudhoe Bay, Pipeline pumping stations, Valdez Marine Terminal, Red Dog Mine, Fort Knox Mine, and residential and commercial buildings.  He started the very first electrical site on the Internet, electrician.com, in July of 1995, and was the first person in the USA to provide an approved online continuing education course for electricians in 1999.  Since then he has provided online continuing education courses for the States of Alaska and Washington at electrician.com and now electrician2.com for a longer time than anyone or any company. 
He writes and provides electrical calculators at  http://www.electriciancalculators.com
He is the webmaster/owner/graphics designer/programmer and  the only person responsible for electrician2.com,  electriciancalculators.com.  He writes HTML, JavaScript, Visual Basic, and Perl code for these Internet sites.  Gerald Newton attended the University of Alaska, Fairleigh Dickinson University, and William Paterson University.  He holds a Bachelor of Arts Degree in Mathematics from William Paterson University.

Gerald Newton resides with his wife at North Pole, Alaska about 14 miles Southeast of Fairbanks, Alaska.  He spends his leisure time four wheeling, mining, and moose hunting with his wife and driving a Ranger Track Vehicle in the Alaska Range and at Shaw Creek Flats.

email:  electrician@electrician2.com

cell:  907 978 0160