Zakład Energetyczny, in the conditions of connecting the electrical installation to the apartment, in which, after removing the electricity meter, I applied for re-installation, stated that a single-line design should be drawn up from the meter strip in the staircase to the WLZ, along with the preparation of the WLZ. The WLZ is adapted because it has recently been replaced and in the box I have my pre-meter fuse with the apartment number. How such a diagram should look like and whether it should be handwritten or in Autokada, and what permissions should the person signing as the contractor of the diagram and installation have.