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Links
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Description
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Download Code Calculators
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Code Calculators has been
REVISED with Visual Basic 2010. The installation bugs should be fixed.
Code Calculators
includes a raceway fill program, a Voltage Drop program, a Table 310.16 program, 3-phase
Voltage Drop program using NEC Table 9, and basic Power, Watts, Amperes calculation
programs. This is a Visual Basic 2010 ClickOnce application that downloads
and installs on your computer that includes a desktop icon. It can be removed using
the windows control panel.
This program will check
for required components and download and install missing components. It has
been tested on Windows 7 , Vista, and XP. Note, the .NET Framework 4 client file is
quite large (41 MB)
| The following prerequisites are required and
if not found will be automatically installed: |
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- Windows
Installer 3.1
- Microsoft Visual Basic PowerPacks 10.0
- Microsoft .NET Framework 4 Client Profile (x86 and x64) (41
MB)
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The below
Calculators are written in JavaScript.
They run in a web page using Java enabled Browsers.
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| 3-Phase Voltage Drop Calculator with Power
Factor |
NEW 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.
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| Range Calculator |
NEW 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 310.16 Conductor Size |
This webpage calculator is still online but a better NEC Table 310.16 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.
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| Table 310.16 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 310.16 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. |
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Raceway
Fill
(not for compact conductors)
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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.
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| 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. |
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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. |
| 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. |
| Excel Table 310.16 Reader |
This Excel spreadsheet reads Table 310.16 for copper conductors only. This
program is similar to the JavaScript program that reads Table 310.16. |
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Below are rare Special Links of Interest |
| Building
Code Source |
Download just about any current Building Code for Free
and they are legal due to a court ruling in 2002. |
| Grounding Diagrams |
Classic assortment of grounding diagrams. Includes 17
system grounding diagrams for services and standby generators. Click on thumbnails to see
full diagram. |
| Special
Neher McGrath Papers |
PDF files of various classic papers on the current carrying capacity of conductors
including the famous Neher McGrath and Samuel Rosch Papers. Most of these papers came
from the Engineering Societies Library in New York City in 1993. (No longer in
business) |
Industrial - Commercial 
Electrical
Contractor 
