LectriCalc Recent Revision History

Changes Made

• Fixed a problem with Conduit Fill result not always showing up, entirely, on some PocketPC screens.

• NEC 2008 requires that when a raceway is on a rooftop, ampacity calculations must be made based on an ambient temperature higher than standard ambient. LectriCalc's Ampacity calculator handles this required ambient increase, and version 5.0.02 adds display of how much ambient is increased to perform the ampacity calculation. This display is shown just to the right of the user-selected ambient temperature (on rooftop raceway calculations only).

• Fixed a misprint in the area of size 750 AL XHHW cable in Conduit Fill calculator.

• New Impedance Calculator: IEEE 141 Exact Voltage Drop calculation in a new Impedance calculator. This engineering-grade voltage drop formula is used for 3 phase circuits and calculates IEEE 141 Voltage Drop, Resistance, Reactance, and Effective Z (Impedance)
• New Transformers Calculators: Single Phase, Three Phase Delta and Wye Transformer calculators. These new calculators can make 30 different transformer calculations.
• New Wire Cost Calculator: Easily calculate the value of copper and aluminum wire to see how much the waste is costing you.
• Enhancements to Motor Data Calculator: Added multi-motor calculation capability and locked rotor current calculation
• Enhancements to Ampacity Calculator: Added UP/DOWN button beside Conductor Size in lower right corner. Selecting this button pops up a wire size selector that lets user pick a wire size and see its ampacity, using the current screen settings. Added "Par." checkbox to allow for calculation of Parallel Ampacity. Added metric Wire Size output. Added rooftop ambient temperature correction factor to Ampacity calculator, per NEC 2008 change
• Enhancements to Conduit Fill Calculator: Added UP button beside recommended conduit in lower right corner. Selecting this button displays information about using the current wire fill in a larger conduit than is really needed. Added RMC Hazardous Seal and GRC Hazardous Seal to conduit types list. Added Metal and Non-Metal Auxiliary Gutter fill calculations to conduit types list. Added Metal Cable Tray fill calculations for conductor sizes 1/0 and larger. Added Conduit Body information for conductors size 6 and smaller. Added Wire-Bending Space allowance table for sizes 8 and larger. Conduit Fill Calculator now displays information about the currently selected conductor: Area in mm2 and in2 and Diameter in mm and inches. Also added a [Cancel] button in case user enters wire type "Other..." but does not know area in sq. in.
• Modified Voltage Drop Calculator to offer both the previous, advanced version that considers copper/aluminum, solid/strand, and temperature, and also a basic calculator that does not consider wire type or temperature. Some state regulations mandate use only of a basic calculator. Also see new IEEE 141 Exact Voltage Drop calculation available in the new Impedance calculator. This engineering-grade voltage drop formula is used for 3 phase circuits.
• GEC Calculator now shows GEC for both copper and aluminum.
• Reference Section enhancements: Added nearly 200 electrical symbols. Added conduit weights table. Added tables on Pressure Twist-On Wire Connector color information based on the mix of conductors being connected

• Made modifications to allow for custom Local Union tool lists in reference section.
• In Conduit Fill Calculator, changed button text from "Show Current Fill" to "Show Conduit Fill" as some users thought the word "Current" might be referring to an electrical current
• Added Std. Transformer KVA Ratings table to Reference section
• Condensed the words "Amp Capacity" to "Ampacity" throughout LectriCalc
• Changed 26-30C Ambient Temperature on Ampacity screen to bold font to highlight its importance

• Added screen ruler
• Added STD Switchboard or Switchgears, and STD Busway or Busduct to Reference section
• Added Robroy™ conduit type to Conduit Fill calculator

• Added button to Code-A-Day screen to allow quick access to arithmetic calculator

• Added simple arithmetic calculator accessible via system menu
• In reference, SEC & GNDS, Riser Size, added 2 inch sizes for 175 and 200 amp service Riser/RMC
• Added optional beep in Code-A-Day when wrong answer is given and when all questions are answered (registered version only)
• Added information button to display special circumstances for some Code-A-Day question sets
• Added on-screen indication of number of unanswered questions remaining in Code-A-Day

• Added device name display to registration screen
• Added display of current score in upper right corner of Code-A-Day screen (registered version only)
• Changed Code-A-Day change test button text from "Change Questions" to "New Test"
• Modified trial version to show answers for up to 5 questions and up to 3 different tests
• Corrected column header typo in Reference: SEC & GNDS, Riser Size

• Added Code-A-Day self-test electrical code review software.
• Added UF, SA and TBS wire types to conduit fill calculator.
• Increased Box Fill wire size dropdowns from 16 to 30.
• Added Typical Tool List to reference section.

• Added IMC, EMT, RMC and GRC length note at end of EMT, RNC and RMC Support Table.

• Corrected typo in Std. Disconnect Sizes/colors

• Added "Misc. Support" in Material Support table.

• Added low voltage lighting voltage drop calculator.

• Added calculations of amps from (volts + variables).