Electrc 2011 NEC Calculator is a suite of tools that performs your most
common electrical design calculations in full compliance with the 2011
National Electrical Code.


Conductor sizing:

  • User selectable 2008 NEC or 2011 NEC ampacities and ambient temperature ratings
  • Single or parallel (up to 12) conductors per phase
  • Voltage drop, circuit type, ambient temperature and quantity of current carrying
    conductors derating
  • Terminal temperature factoring
  • New rooftop raceway derating
  • Many built-in conductor types
  • User defined custom conductors


Conduit & Trough Fill:

  • Any combination of conductors per fill calculation including bare and custom conductors
  • 13 raceway types plus trough
  • Alternate raceway size option.


Motor Calculations:

  • User selectable 2008 NEC or 2011 NEC ampacities and ambient temperature ratings
  • Motor conductor, overcurrent and overload sizing
  • Single or parallel (up to 12) conductors per phase
  • Voltage drop, circuit type, ambient temperature and quantity current carrying conductors
    derating
  • Terminal temperature factoring
  • Rooftop raceway derating
  • Many built-in conductor types
  • User defined custom conductors
  • Single phase motors up to 10 Hp
  • Three phase motors up to 500 Hp.


Lighting Design:

  • Many built-in lighting fixtures and lamps
  • Specify your own fixtures and lamps
  • Reflectance and maintenance factor parameters
  • Standard and reverse lighting calculations


Panel Directory:

  • Print panelboard directories in two sizes (4 x 6 or 6 x 8 inch)
  • Up to 84 circuits per panelboard
  • Optional footer text.


Transformer Sizing:

  • Solve for kva rating or load amperage
  • Primary and secondary overcurrent protection
  • Distribution and autotransformer types.


Fault Current Calculations:

  • Point to point method, up to 10 points on each distribution system.
  • Calculate fault current at the end of a run of conductors
  • Calculate fault current at the secondary of a transformer
  • Calculate fault current downstream from the secondary of a transformer


Voltage Drop:

  • Calculates the voltage drop on existing or proposed resistive (100% power factor) circuits.


Power Factor Correction:

  • Calculates the existing power factor, and determines the quantity of capacitive Kvars
    needed to arrive at a new power factor
  • Shows the amount of distribution system losses that would be freed-up at the new
    power factor.


Box Fill and Sizing:

  • Calculates the volumetric capacity, in cubic inches, of device or splice boxes, required for
    any quantity of conductors, devices, and fittings.


Quick-Reference Tables:

  • Reference tables from the NEC. Conductor ampacity, box volumes, equipment ground
    conductors, grounding electrode conductors, underground cover requirements, terminal
    temperature limitations, and more.


File Save/Load:

  • All program function allow you to save project files for future reference or reuse.


Professional, detailed printed reports:

  • Viewable in print preview, or sent to printer.


Quick-Calculators:

  • Ohm's Law
  • AC/DC Formulas
  • Cost to Operate (standard and demand metering)



Minimum System Requirements:

Windows 98 through Windows 7
32 bit or 64 bit operating systems
Microsoft .Net Framework 2.0 or higher
Electrc 2008 Setup will install the Framework if it is not already on your system
1 Mb disk space (if Framework is already installed)
160 Mb disk space (if Framework is not already installed)
2 Mb Ram
Mouse or pointing device.