Cable Conductor Size Calculator

One of these wires is a ground wire which can be sized down.

Cable conductor size calculator.

Suppose i have 40a load and 25ka is rating and i don t have specified lentgh of cable voltage ratings but i need to give just size of cable for phase conductor and ecc is there any way to calculate it directly using some direct formula. Aluminum and flexible cables are not supported yet. The cable sizing calculator considers solid or stranded copper conductors only. Kindly give me guidance for the calculation of cable size.

The values in table 9 is based om three single conductors in a conduit. Conductor choose the material used as a conductor in the wire. The primary two metals used for electrical conductors are copper and aluminum. Cable or conductor estimating is the way toward choosing suitable sizes for electrical power cable conductors.

A great tool to help electricians engineers and contractors answer the question what size conduit do i use per the nec the app will calculate the conduit fill percentages and jam probability for multiple conductors per nec guidelines. Insulation select the thermal rating of the insulation on the wire. Simply enter the conduit type and size then specify your conductors. The requirements of the national electrical code nec and local codes must always be followed.

The cable sizing calculator uses the resistance r c and reactance x c values from table 9 in chapter 9 of the nec. It is based on cable type insulation type and the cable installation method. To calculate ground wire size use the ground wire size calculator. What is the use of cable size calculator.

Tables 4 to 21 are based on an ambient temperature of 40 c and a ground temperature of 25 c. Common conductors are copper and aluminum. Each has a different ampacity for a specified gauge size and these ampacities are found in nec table 310 15 b 16 for the calculations in this app. Cable sizes are typically depicted as far as cross sectional territory american wire gauge awg or kcmil contingent upon the geographic district.

The wire sizing calculator uses the resistance and reactance values from the pvc conduit column in chapter 9. The wire size calculator will give you a very simple and quick solution to the problem of calculating the size of wires and cables for pump applications in golf courses landscape projects and agriculture. Southwire s voltage drop calculator is designed for applications using awg and kcmil sizes only. When sizing conductors calculations limits wire size to voltage drop and nec ampacity.

For example 3 0 awg copper. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run.