English to Swedish Tech/Engineering Energy / Power Generation

Lines and neutrals förekommer i en instruktionsbok för en synkrongenerator i den allmänna beskrivningen:

GENERAL
Machines in the XXX range are of box frame salient-pole construction with brushless excitation, and a PMG for the AVR power supply.
All the items making up an XXX machine are fixed to the box frame, which is the main structural member. It carries the end brackets and bearings, the stator corepack and the cooler, which is mounted on top. The exciter and PMG stators are fixed to a bracket mounted on the end bracket at the NDE. Terminals are mounted off the frame, either all on one side or lines one side and neutrals on the other, as required. Accommodation for current transformers may be provided.

Tror att det är klämmor som är monterade på en tvärbalkskonstruktion, antingen alla klämmor på en sida eller ...
Men vad betyder Lines on one side and neutrals on the other?