The Расчёт сечения провода app, developed by ST Progs, is a free utility tool available on the Android platform. It is designed to help electricians and technicians calculate the wire size needed for a specific power or current rating.

The app is straightforward and easy to use, with a simple interface that allows the user to enter either the power or current rating and the desired voltage. Once the values are entered, the app calculates the recommended wire size, taking into account the voltage drop and the maximum current rating for the selected wire type.

This app is a useful tool for electricians and technicians who need to quickly determine the appropriate wire size for a given application. It is especially helpful for those who work with low voltage systems, where voltage drop can be a critical factor in the design and performance of the system.