Good presentation of this interesting Metro line, with parts of it running on ground level! The 3rd rail system of line 3 is also very interesting. There seem to be 2 rails stacked - do you know if this is used for positive and negative terminal of the power supply? Best regards from Hamburg.
Good presentation of this interesting Metro line, with parts of it running on ground level! The 3rd rail system of line 3 is also very interesting. There seem to be 2 rails stacked - do you know if this is used for positive and negative terminal of the power supply? Best regards from Hamburg.
Normally the return path is over the rails. We assume that the third rail of the S-Series was positive because it was 600V DC.