CableCalc

Calculator for calculating the sag and tension of self-supporting optical cables, taking into account climatic loads.
A list of cables with preset mechanical characteristics is available.
The possibility of editing mechanical characteristics is provided.
Calculation of loads on the overhead line support in accordance with PUE-7.
Editable database with characteristics of cables and wires.
To add a new record, go to the database editing page (the "Edit cable list" button), fill in all the fields and click the "Add / save record" button. The entry will appear in the cable list.
To edit a record, select the record (cable brand from the drop-down list) that you want to edit, then click "Edit Record". All editable fields will be filled with the previously saved characteristics. Edit the required fields and click "Add / Save Entry".
To delete, select the required entry in the drop-down list and click "Delete entry".
Added a function for saving calculation results with a full description of the calculation methodology.
To use the recording function, you need to set permission to work with memory in the application settings:
Settings / Applications / CableCalc / Permissions / Memory
Files are saved to the shared folder / Documents / CableCalc /
upd: Installed the method recommended by Google to confirm memory access permissions for devices with Android version 6 and higher. Permission to access the memory is requested directly when saving the calculation results to a file.
Permissions are not required for all the main functionality of the application.

Desktop version on GitHub:
https://github.com/freexrunner/CableCalc_Python