Cable Conductor Size Calculator

The requirements of the national electrical code nec and local codes must always be followed.

Cable conductor size calculator.

It is based on cable type insulation type and the cable installation method. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. Insulation select the thermal rating of the insulation on the wire. Conductor choose the material used as a conductor in the wire.

The values in table 9 is based om three single conductors in a conduit. Cable sizes are typically depicted as far as cross sectional territory american wire gauge awg or kcmil contingent upon the geographic district. When sizing conductors calculations limits wire size to voltage drop and nec ampacity. The wire sizing calculator uses the resistance and reactance values from the pvc conduit column in chapter 9.

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. 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. The cable sizing calculator considers solid or stranded copper conductors only. What is the use of cable size calculator.

Aluminum and flexible cables are not supported yet. 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. Common conductors are copper and aluminum. 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. The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f. Kindly give me guidance for the calculation of cable size. For more information on ampacity calculations please consult our technical resources.

Wire circular mils conductor. For example 3 0 awg copper. Simply enter the conduit type and size then specify your conductors. Southwire s voltage drop calculator is designed for applications using awg and kcmil sizes only.

To calculate ground wire size use the ground wire size calculator. The cable sizing calculator uses the resistance r c and reactance x c values from table 9 in chapter 9 of the nec.