Electrical engineers document a line set of conductors in schematics, specifying gauge, insulation, routing

https://www.it-core.eu/wiki/index.php?title=Mini_Split_Line_Set_Requirements_for_Small_Apartments_10322

Electrical engineers document a line set of conductors in schematics, specifying gauge, insulation, routing, and separation to meet ampacity, noise immunity, and EMC standards in complex assemblies.