Cable Designing Program (Spreadsheet)

Cable Designing Program (Spreadsheet)

Calculation of voltage drop and cable size for motor/electrical load

  • Calculate Voltage drop of Cable.
  • Calculate  Size of Cable.
  • Calculate Current Capacity of Cable.
Software:Cable designing program
Version:22.8.2012 New
Developer:Jignesh Parmar
Size:99 Kb
Price:Free
Download:Right here
Cable design program

Cable Designing Program (Spreadsheet)

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Page edited by E.C. (Google).



35 Comments


  1. M G Patel
    Nov 08, 2014

    Useful information


  2. Parag Chamuah
    Oct 13, 2014

    Thanks for the work you have shared. I have few queries:
    1.How do we know what is the phase value(φ)?
    2.What is demand factor specifically?


  3. bdthang
    Jun 17, 2014

    Very useful. It help me a lot!


  4. kolumb
    Jun 10, 2014

    There is something wrong with the cable data – it’s impossible 3 different type cables with same Conductor Area, same matherial, to have 3 different Resistance (ohm/km).
    Example – look first 3 cable types – PVC flexible, PVC insulated and XLPE insulated, for the same Conductor area (by example 1cX6), both Copper, resistance for the fist is 3.3ohm/km, for the second is 3,69ohm/km and the third is 1.53ohm/km.
    May be the last one uses a super copper, twice better than first 2 :)


  5. ENGR.MUHAMMAD YOUNAS KHAN
    Apr 21, 2014

    dear sir
    I want to submit the formulas of cable sizing to those persons which are searching here and there.I appreciate of your current website which are publishing my cable sizing ideas.I am submiting another voltage drop and cable sizing formula.

    1- Vd = 1.732 x I X L X PF/ (Area mm2 x conductivity of copper) ———-FORMULA 1
    2- Area(mm2) = 1.732 x I X LX PF/(Vd x conductivity of copper) ———–FORMULA 2

    WHERE:-
    1.732 FOR THREE PHASE.
    2 FOR SINGLE PHASE.
    I = LOAD CURRENT.
    L= LENGTH OF CABLE.
    PF= POWER FACTOR.
    Vd= VOLTAGE DROP.
    CONDUCTIVITY OF COPPER AT 90 DEG.C = 41.66
    CONDUCTIVITY OF ALUMINUM AT 90 DEG.C =25.64

    DATA:-
    1.732 FOR THREE PHASE.
    I = 160 AMPS.
    L= 200 METERS.
    PF= 0.85

    FIRSTLY WE CALCULATE THE VOLTAGE DROP.
    Vd = 1.732 x 160 x 200 x 0.85/(70 mm2 x 41.66)
    = 16.1547 volts —————(1) for copper conductor.
    Area(mm2)b= 1.732 x 160 x 200 x 0.85/(16.1547 x 41.66)
    = 70 mm2 ———-(2) for copper conductor.

    if you want to use Aluminum conductor, apply conductivity of Akuminum which is above said.ABOVE CALCULATIONS ONLY FOR THREE PHASE.

    FROM
    ENGR.MUHAMMAD YOUNAS KHAN
    M.SC.ENGG.MIEE(UK)
    WAZIRABAD CITY, PUNJAB,PAKISTAN.


    • Ramkumar M
      Mar 07, 2015

      How you get Area size 70mm2 ?


  6. thiru
    Apr 19, 2014

    calc is wrong.Diff cable size should apear for Al & Cu.


  7. osman
    Jan 04, 2014

    please send me


  8. Kingsley
    Jan 01, 2014

    Very useful, Thanks.

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