Re: "lost" trains

[Stuart Ellis <mpp@zipworld.com.au>]

David Johnson wrote:

> >
> > Could someone please explain what sort of track circuit was involved at
> > Cowan?
>
> "On the Up track, AC 50 hertz double rail track circuits are installed from
> Cowan to 34.6B.  Audio frequency jointless track circuits are installed from
> 34.6A to Hawkesbury River.
>
> "AC VL shelf type relays are installed from Cowan to 32.9C location.  50V DC
> miniature plug-in relays are installed in 34.3, 34.6 and 35.1 locations, with
> the exception of 34.6B track relay in location 34.3 which is an AC VT shelf type
> relay.
>
> "New signalling cable had been installed from Cowan to 34.3 location in 1988 and
> from 34.3 to 35.4 locations in 1989."

And do not forget that Cowan Bank was completely re- signaled, during Easter 1996,
and all track circuits ( including the relatively new frequency track circuits )
were converted over to the now standard joint less frequency track circuits.

>
>
> --
> David Johnson
> trainman@ozemail.com.au
> http://www.ozemail.com.au/~trainman/