CuCalc is a cable and wire cross-section selection program developed by Aldunin Dmitriy. It helps users select the appropriate cable or wire cross-section based on the given power, voltage level, conductor type, and laying method. The program includes features such as power calculation for single/three-phase AC and DC, current calculation based on power, selection of cable cross-sections based on heating, selection of cable cross-sections with paper-impregnated insulation, voltage drop verification (cable selection) and determination of active and inductive resistance of the conductor.

It is important to note that the program is intended for primary assessment purposes only, and users must have sufficient theoretical knowledge to select cables based on heating and voltage drop. Additionally, the program is designed to assist with cable selection in the field, where specialized PC programs are not available, using mobile devices.

CuCalc is available for free on the Android platform and is designed specifically for the Utilities & Tools category. While the program is useful for low-voltage applications, it is important to remember the thermal and electromagnetic resistance for short circuits, overload protection, current density, and economic considerations when selecting cables.

Overall, CuCalc is a useful program for cable selection on-the-go, but users must exercise caution and have adequate theoretical knowledge to ensure safe and appropriate cable selection.