All supplementary wires that are not part of the catenary system are referred to as auxiliary wires.
For different types of auxiliary wire, see Earth Wire (EW), Auto Transformer Feeder (ATF) and Return Conductors.
All supplementary wires that are not part of the catenary system are referred to as auxiliary wires.
For different types of auxiliary wire, see Earth Wire (EW), Auto Transformer Feeder (ATF) and Return Conductors.