Re: SLR - Extension construction

[John Duncan McCallum <mccallum@melbpc.org.au>]

Jonathan Boles wrote:
 
 This leads me to ask, what is double catenary/contact in the Sydney
system used
 for? I know there is double contact on the ESR and Redfern to
Strathfield, and
 double catenary in the Blue Mountains and on the up from Chatswood to
St
 Leonards. Where else is it used? Concerning the latter section, why
would it be
 used for such a short distance? One more thing, how thick are standard
feeder
 cables?
 
 > Most of the current track
 > has double contact wires and a thicker catenary wire. The extension
appears
 > to be double contact wire only. Unless they are going to bury a nice
thick
 > 750 volt feed from the Fish Markets sub, they will have voltage drop
 problems.

When I was in Sydney a couple of weeks ago on holidays, I noticed that a
very large
proportion of the overhead had double contact wire. It appears to me
that they are
progressively installing double contact wire on most if not all of the
electrified
area.

Cheers,
-- 
==========================================
John McCallum, member Melbourne PC User Group,
email <mccallum@melbpc.org.au>