12.2.5 Wiring diagrams
Wiring diagrams show the interconnection of the multicore cables, for example,
between the switchgear and the associated control panels, and the routing of individual
wires to the equipment installed in the relay and control panels. These diagrams
are required to facilitate the wiring of the measurement, protection and
control equipment at the substation construction stage. The wiring should be carried
out in accordance with the layout shown in the AC and DC diagrams.
It is logical that the layout of the different devices on the wiring diagrams
should be as seen from the rear of the relay and control panels, as in practice. Each
device should be represented by its schematic, with every terminal located in
accordance with its actual position on the panel. Each conductor should be marked
with the same identification code as the terminal to which it is connected, and also